1
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Do KM, Hoshino S, Kodama T, Nguyen HM, Van Le S, Ikumi N, Onaka H, Morita H. A new 3,4-seco-isopimarane and three new isopimarane diterpenoids from Kaempferia champasakensis collected from Vietnam and their cytotoxic activities. J Nat Med 2024; 78:537-546. [PMID: 38517624 DOI: 10.1007/s11418-024-01789-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Accepted: 02/07/2024] [Indexed: 03/24/2024]
Abstract
A phytochemical investigation of Kaempferia champasakensis rhizomes led to the isolation of a new 3,4-seco-isopimarane diterpene, kaempferiol A (1), and three new isopimarane diterpenes, kaempferiols B-D (2-4), together with six known isopimarane diterpenes (5-10). The structures of 1-4 were elucidated by extensive spectroscopic analyses, including HR-ESI-MS, UV, IR, and 1D and 2D NMR. The absolute configurations of 1, 3, and 4 were determined by ECD calculations, while that of 2 was established using the modified Mosher method. All isolated compounds were tested for cytotoxicity against three human cancer cell lines, lung cancer (A549), cervical cancer (HeLa), and breast cancer (MCF-7). Among them, 6 and 7 showed moderate cytotoxic activities against the three tested cell lines, with IC50 values ranging from 38.04 to 27.77 μM, respectively.
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Affiliation(s)
- Kiep Minh Do
- Institute of Natural Medicine, University of Toyama, 2630-Sugitani, Toyama, 930-0194, Japan
| | - Shotaro Hoshino
- Faculty of Science, Gakushuin University, 1-5-1 Mejiro, Toshima-Ku, Tokyo, 171-8588, Japan
| | - Takeshi Kodama
- Institute of Natural Medicine, University of Toyama, 2630-Sugitani, Toyama, 930-0194, Japan
| | - Hien Minh Nguyen
- Faculty of Pharmacy, Ton Duc Thang University, Ho Chi Minh City, 700000, Vietnam
| | - Son Van Le
- Thuong Uyen Company, Ltd., 116A Mac Dinh Chi, Ward 4, Vung Tau City, 78000, Vietnam
| | - Naotaka Ikumi
- Japan Preventive Medical Laboratory Company, Ltd, 3-6-36 Toyoda, Suruga-Ku, Shizuoka, 422-8027, Japan
| | - Hiroyasu Onaka
- Faculty of Science, Gakushuin University, 1-5-1 Mejiro, Toshima-Ku, Tokyo, 171-8588, Japan.
| | - Hiroyuki Morita
- Institute of Natural Medicine, University of Toyama, 2630-Sugitani, Toyama, 930-0194, Japan.
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2
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Kitano T, Inagaki H, Hoshino S. The impact of single-stranded RNAs on the dimerization of double-stranded RNA-dependent protein kinase PKR. Biochem Biophys Res Commun 2024; 719:150103. [PMID: 38761636 DOI: 10.1016/j.bbrc.2024.150103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Accepted: 05/10/2024] [Indexed: 05/20/2024]
Abstract
The RNA-binding protein PKR serves as a crucial antiviral innate immune factor that globally suppresses translation by sensing viral double-stranded RNA (dsRNA) and by phosphorylating the translation initiation factor eIF2α. Recent findings have unveiled that single-stranded RNAs (ssRNAs), including in vitro transcribed (IVT) mRNA, can also bind to and activate PKR. However, the precise mechanism underlying PKR activation by ssRNAs, remains incompletely understood. Here, we developed a NanoLuc Binary Technology (NanoBiT)-based in vitro PKR dimerization assay to assess the impact of ssRNAs on PKR dimerization. Our findings demonstrate that, akin to double-stranded polyinosinic:polycytidylic acid (polyIC), an encephalomyocarditis virus (EMCV) RNA, as well as NanoLuc luciferase (Nluc) mRNA, can induce PKR dimerization. Conversely, homopolymeric RNA lacking secondary structure fails to promote PKR dimerization, underscoring the significance of secondary structure in this process. Furthermore, adenovirus VA RNA 1, another ssRNA, impedes PKR dimerization by competing with Nluc mRNA. Additionally, we observed structured ssRNAs capable of forming G-quadruplexes induce PKR dimerization. Collectively, our results indicate that ssRNAs have the ability to either induce or inhibit PKR dimerization, thus representing potential targets for the development of antiviral and anti-inflammatory agents.
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Affiliation(s)
- Tomoya Kitano
- Department of Biological Chemistry, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, 467-8603, Japan
| | - Hiroto Inagaki
- Department of Biological Chemistry, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, 467-8603, Japan
| | - S Hoshino
- Department of Biological Chemistry, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, 467-8603, Japan.
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3
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Hoshino S, Ijichi S, Asamizu S, Onaka H. Insights into Arsenic Secondary Metabolism in Actinomycetes from the Structure and Biosynthesis of Bisenarsan. J Am Chem Soc 2023; 145:17863-17871. [PMID: 37534495 DOI: 10.1021/jacs.3c04978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/04/2023]
Abstract
The unique bioactivities of arsenic-containing secondary metabolites have been revealed recently, but studies on arsenic secondary metabolism in microorganisms have been extremely limited. Here, we focused on the organoarsenic metabolite with an unknown chemical structure, named bisenarsan, produced by well-studied model actinomycetes and elucidated its structure by combining feeding of the putative biosynthetic precursor (2-hydroxyethyl)arsonic acid to Streptomyces lividans 1326 and detailed NMR analyses. Bisenarsan is the first characterized actinomycete-derived arsenic secondary metabolite and may function as a prototoxin form of an antibacterial agent or be a detoxification product of inorganic arsenic species. We also verified the previously proposed genes responsible for bisenarsan biosynthesis, especially the (2-hydroxyethyl)arsonic acid moiety. Notably, we suggest that a C-As bond in bisenarsan is formed by the intramolecular rearrangement of a pentavalent arsenic species (arsenoenolpyruvate) by the cofactor-independent phosphoglycerate mutase homologue BsnN, that is entirely distinct from the conventional biological C-As bond formation through As-alkylation of trivalent arsenic species by S-adenosylmethionine-dependent enzymes. Our findings will speed up the development of arsenic natural product biosynthesis.
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Affiliation(s)
- Shotaro Hoshino
- Department of Life Science, Faculty of Science, Gakushuin University, 1-5-1 Mejiro, Toshima, Tokyo 171-8588, Japan
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Yayoi 1-1-1, Bunkyo, Tokyo 113-8657, Japan
| | - Shinta Ijichi
- Department of Life Science, Faculty of Science, Gakushuin University, 1-5-1 Mejiro, Toshima, Tokyo 171-8588, Japan
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Yayoi 1-1-1, Bunkyo, Tokyo 113-8657, Japan
| | - Shumpei Asamizu
- Department of Life Science, Faculty of Science, Gakushuin University, 1-5-1 Mejiro, Toshima, Tokyo 171-8588, Japan
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Yayoi 1-1-1, Bunkyo, Tokyo 113-8657, Japan
- Collaborative Research Institute for Innovative Microbiology (CRIIM), The University of Tokyo, Yayoi 1-1-1, Bunkyo, Tokyo 113-8657, Japan
| | - Hiroyasu Onaka
- Department of Life Science, Faculty of Science, Gakushuin University, 1-5-1 Mejiro, Toshima, Tokyo 171-8588, Japan
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Yayoi 1-1-1, Bunkyo, Tokyo 113-8657, Japan
- Collaborative Research Institute for Innovative Microbiology (CRIIM), The University of Tokyo, Yayoi 1-1-1, Bunkyo, Tokyo 113-8657, Japan
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4
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Ijichi S, Hoshino S, Asamizu S, Onaka H. SolS-catalyzed sulfoxidation of labionin to solabionin drives antibacterial activity of solabiomycins. Bioorg Med Chem Lett 2023; 89:129323. [PMID: 37169227 DOI: 10.1016/j.bmcl.2023.129323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 05/01/2023] [Accepted: 05/07/2023] [Indexed: 05/13/2023]
Abstract
Ribosomally synthesized and posttranslationally modified peptides (RiPPs) with polar-functionalized fatty acyl groups are newly found lipopeptide-class natural products. We recently employed a combined approach of genome mining and stable isotope labeling and discovered solabiomycins as one of the polar-functionalized fatty-acylated RiPPs (PFARs) from Streptomyces lydicus NBRC13058. The solabiomycins contained a characteristic sulfoxide group in the labionin moiety referred to as the 'solabionin' structure for the RiPP moiety. A previous gene knockout experiment indicated that solS, which encodes a putative flavin adenine dinucleotide (FAD)-nicotinamide adenine dinucleotide (phosphate) (NAD(P))-binding protein, is involved in the sulfoxidation of an alkyl sulfide in the solabionin. In this study, we isolated deoxysolabiomycins A and B from ΔsolS mutant and fully determined the chemical structures using a series of NMR experiments. We also tested the bioactivity of deoxysolabiomycins against Gram-positive bacteria, including Mycolicibacterium smegmatis, and notably found that the sulfoxide is critical for the antibacterial activity. To characterize the catalytic activity of SolS, the recombinant protein was incubated with a putative substrate, deoxysolabiomycins, and the cofactors FAD and NADPH. In vitro reactions demonstrated that SolS catalyzes the sulfoxidation, converting deoxysolabiomycins to solabiomycins.
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Affiliation(s)
- Shinta Ijichi
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Yayoi 1-1-1, Bunkyo, Tokyo, 113-8657, Japan
| | - Shotaro Hoshino
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Yayoi 1-1-1, Bunkyo, Tokyo, 113-8657, Japan
| | - Shumpei Asamizu
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Yayoi 1-1-1, Bunkyo, Tokyo, 113-8657, Japan; Collaborative Research Institute for Innovative Microbiology (CRIIM), The University of Tokyo, Yayoi 1-1-1, Bunkyo, Tokyo, 113-8657, Japan
| | - Hiroyasu Onaka
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Yayoi 1-1-1, Bunkyo, Tokyo, 113-8657, Japan; Collaborative Research Institute for Innovative Microbiology (CRIIM), The University of Tokyo, Yayoi 1-1-1, Bunkyo, Tokyo, 113-8657, Japan.
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5
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Han EJ, Lee SR, Hoshino S, Seyedsayamdost MR. Targeted Discovery of Cryptic Metabolites with Antiproliferative Activity. ACS Chem Biol 2022; 17:3121-3130. [PMID: 36228140 PMCID: PMC10171914 DOI: 10.1021/acschembio.2c00588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Microorganisms have provided a rich source of therapeutically valuable natural products. Recent advances in whole genome sequencing and bioinformatics have revealed immense untapped potential for new natural products in the form of silent or "cryptic" biosynthetic genes. We herein conducted high-throughput elicitor screening (HiTES) in conjunction with cytotoxicity assays against selected cancer cell lines with the goal of uncovering otherwise undetectable cryptic metabolites with antiproliferative activity. Application to Streptomyces clavuligerus facilitated identification of clavamates A and B, two bioactive metabolites with unusual structural features, as well as facile activation of a gene cluster coding for tunicamycin, which exhibited strong growth-inhibitory activity. The elicitor we identified was pleiotropic, additionally leading to the discovery of a modified, bicyclic pentapeptide natural product. Our results highlight the utility of this approach in identifying new molecules with antiproliferative activity from even overexploited microbial strains.
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Affiliation(s)
- Esther J. Han
- Department of Chemistry, Princeton University, Princeton, NJ 08544, United States
- These authors contributed equally
| | - Seoung Rak Lee
- Department of Chemistry, Princeton University, Princeton, NJ 08544, United States
- These authors contributed equally
| | - Shotaro Hoshino
- Department of Chemistry, Princeton University, Princeton, NJ 08544, United States
| | - Mohammad R. Seyedsayamdost
- Department of Chemistry, Princeton University, Princeton, NJ 08544, United States
- Department of Molecular Biology, Princeton University, Princeton, NJ 08544, United States
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6
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Asamizu S, Ijichi S, Hoshino S, Jo H, Takahashi H, Itoh Y, Matsumoto S, Onaka H. Stable Isotope-Guided Metabolomics Reveals Polar-Functionalized Fatty-Acylated RiPPs from Streptomyces. ACS Chem Biol 2022; 17:2936-2944. [PMID: 36112882 DOI: 10.1021/acschembio.2c00601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Ribosomally synthesized and posttranslationally modified peptides (RiPPs) with polar-functionalized fatty acyl groups are a rarely found untapped class of natural products. Although polar-functionalized fatty-acylated RiPPs (PFARs) have potential as antimicrobial agents, the repertoire is still limited. Therefore, expanding the chemical space is expected to contribute to the development of pharmaceutical agents. In this study, we performed genome mining and stable isotope-guided comparative metabolomics to discover new PFAR natural products. We focused on the feature that PFARs incorporate l-arginine or l-lysine as the starter unit of the fatty acyl group and fed 13C6,15N4-l-arginine or 13C6,15N2-l-lysine to bacterial cultures. Metabolites were extracted and compared with those extracted from nonlabeled l-arginine or l-lysine fed cultures. We identified putative PFARs and successfully isolated solabiomycin A and B from Streptomyces lydicus NBRC 13 058 and albopeptin B from Streptomyces nigrescens HEK616, which contained a sulfoxide group in the labionin moiety. The gene disruption experiment indicated that solS, which encodes a putative flavin adenine dinucleotide (FAD)-nicotinamide adenine dinucleotide (phosphate) (NAD(P))-binding protein, is involved in the sulfoxidation of aryl sulfides. The solabiomycins showed antibacterial activity against Gram-positive bacteria, including Mycobacterium tuberculosis H37Rv with a minimum 95% inhibitory concentration (MIC95) of 3.125 μg/mL, suggesting their potential as antituberculosis agents.
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Affiliation(s)
- Shumpei Asamizu
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Yayoi 1-1-1, Bunkyo, Tokyo 113-8657, Japan.,Collaborative Research Institute for Innovative Microbiology (CRIIM), The University of Tokyo, Yayoi 1-1-1, Bunkyo, Tokyo 113-8657, Japan
| | - Shinta Ijichi
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Yayoi 1-1-1, Bunkyo, Tokyo 113-8657, Japan
| | - Shotaro Hoshino
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Yayoi 1-1-1, Bunkyo, Tokyo 113-8657, Japan
| | - Hansaem Jo
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Yayoi 1-1-1, Bunkyo, Tokyo 113-8657, Japan
| | - Hidenori Takahashi
- Koichi Tanaka Mass Spectrometry Research Laboratory, Shimadzu Corporation, 1 Nishinokyo-Kuwabaracho, Nakagyo-ku, Kyoto 604-8511, Japan
| | - Yuko Itoh
- Department of Bacteriology, Niigata University School of Medicine, 1-757 Asahimachi-Dori, Chuo-ku, Niigata 951-9510, Japan
| | - Sohkichi Matsumoto
- Department of Bacteriology, Niigata University School of Medicine, 1-757 Asahimachi-Dori, Chuo-ku, Niigata 951-9510, Japan.,Laboratory of Tuberculosis, Institute of Tropical Disease, Universitas Airlangga, Kampus C Jl., Mulyorejo, Surabaya 60115, Indonesia
| | - Hiroyasu Onaka
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Yayoi 1-1-1, Bunkyo, Tokyo 113-8657, Japan.,Collaborative Research Institute for Innovative Microbiology (CRIIM), The University of Tokyo, Yayoi 1-1-1, Bunkyo, Tokyo 113-8657, Japan
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7
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Mori T, Nakashima Y, Chen H, Hoshino S, Mitsuhashi T, Abe I. Structure-based redesign of Fe(II)/2-oxoglutarate-dependent oxygenase AndA to catalyze spiro-ring formation. Chem Commun (Camb) 2022; 58:5510-5513. [PMID: 35420093 DOI: 10.1039/d2cc00736c] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Structure- and mechanism-based redesign of the Fe(II)/2-oxoglutarate-dependent oxygenase AndA was performed. The function of AndA was expanded to catalyze a spiro-ring formation reaction from an isomerization reaction. The redesigned AndA variants produced two unnatural novel spiro-ring containing compounds through two and three consecutive oxidation reactions.
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Affiliation(s)
- Takahiro Mori
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, 113-0033, Japan. .,Collaborative Research Institute for Innovative Microbiology, The University of Tokyo, Yayoi 1-1-1, Bunkyo-ku, Tokyo 113-8657, Japan.,PRESTO, Japan Science and Technology Agency (JST), Kawaguchi, Saitama 332-0012, Japan
| | - Yu Nakashima
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, 113-0033, Japan.
| | - Heping Chen
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, 113-0033, Japan.
| | - Shotaro Hoshino
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, 113-0033, Japan.
| | - Takaaki Mitsuhashi
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, 113-0033, Japan.
| | - Ikuro Abe
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, 113-0033, Japan. .,Collaborative Research Institute for Innovative Microbiology, The University of Tokyo, Yayoi 1-1-1, Bunkyo-ku, Tokyo 113-8657, Japan
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8
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Horwitz SM, Blue TC, Ambarian JA, Hoshino S, Seyedsayamdost MR, Davis KM. Structural insights into inhibition of the drug target dihydroorotate dehydrogenase by bacterial hydroxyalkylquinolines. RSC Chem Biol 2022; 3:420-425. [PMID: 35441142 PMCID: PMC8984913 DOI: 10.1039/d1cb00255d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Accepted: 02/07/2022] [Indexed: 12/04/2022] Open
Abstract
Hydroxyalkylquinolines (HAQs) are ubiquitious natural products but their interactions with associated protein targets remain elusive. We report X-ray crystal structures of two HAQs in complex with dihydroorotate dehydrogenase (DHODH). Our results reveal the structural basis of DHODH inhibition by HAQs and open the door to downstream structure-activity relationship studies.
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Affiliation(s)
| | - Tamra C Blue
- Department of Chemistry, Emory University Atlanta GA 30322 USA
| | | | - Shotaro Hoshino
- Department of Chemistry, Princeton University Princeton NJ 08544 USA
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9
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Miwa K, Ahn JK, Akazawa Y, Aramaki T, Ashikaga S, Callier S, Chiga N, Choi SW, Ekawa H, Evtoukhovitch P, Fujioka N, Fujita M, Gogami T, Harada T, Hasegawa S, Hayakawa SH, Honda R, Hoshino S, Hosomi K, Ichikawa M, Ichikawa Y, Ieiri M, Ikeda M, Imai K, Ishikawa Y, Ishimoto S, Jung WS, Kajikawa S, Kanauchi H, Kanda H, Kitaoka T, Kang BM, Kawai H, Kim SH, Kobayashi K, Koike T, Matsuda K, Matsumoto Y, Nagao S, Nagatomi R, Nakada Y, Nakagawa M, Nakamura I, Nanamura T, Naruki M, Ozawa S, Raux L, Rogers TG, Sakaguchi A, Sakao T, Sako H, Sato S, Shiozaki T, Shirotori K, Suzuki KN, Suzuki S, Tabata M, Taille CDL, Takahashi H, Takahashi T, Takahashi TN, Tamura H, Tanaka M, Tanida K, Tsamalaidze Z, Ukai M, Umetsu H, Wada S, Yamamoto TO, Yoshida J, Yoshimura K. Precise Measurement of Differential Cross Sections of the Σ^{-}p→Λn Reaction in Momentum Range 470-650 MeV/c. Phys Rev Lett 2022; 128:072501. [PMID: 35244436 DOI: 10.1103/physrevlett.128.072501] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 01/13/2022] [Accepted: 01/13/2022] [Indexed: 06/14/2023]
Abstract
The differential cross sections of the Σ^{-}p→Λn reaction were measured accurately for the Σ^{-} momentum (p_{Σ}) ranging from 470 to 650 MeV/c at the J-PARC Hadron Experimental Facility. Precise angular information about the Σ^{-}p→Λn reaction was obtained for the first time by detecting approximately 100 reaction events at each angular step of Δcosθ=0.1. The obtained differential cross sections show a slightly forward-peaking structure in the measured momentum regions. The cross sections integrated for -0.7≤cosθ≤1.0 were obtained as 22.5±0.68 [statistical error(stat.)] ±0.65 [systematic error(syst.)] mb and 15.8±0.83(stat)±0.52(syst) mb for 470<p_{Σ}(MeV/c)<550 and 550<p_{Σ}(MeV/c)<650, respectively. These results show a drastic improvement compared with past measurements of the hyperon-proton scattering experiments. They will play essential roles in updating the theoretical models of the baryon-baryon interactions.
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Affiliation(s)
- K Miwa
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - J K Ahn
- Department of Physics, Korea University, Seoul 02841, Korea
| | - Y Akazawa
- Institute of Particle and Nuclear Studies (IPNS), High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - T Aramaki
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - S Ashikaga
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - S Callier
- OMEGA Ecole Polytechnique-CNRS/IN2P3, 3 rue Michel-Ange, 75794 Paris 16, France
| | - N Chiga
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - S W Choi
- Department of Physics, Korea University, Seoul 02841, Korea
| | - H Ekawa
- High Energy Nuclear Physics Laboratory, RIKEN, Wako 351-0198, Japan
| | - P Evtoukhovitch
- Joint Institute for Nuclear Research (JINR), Dubna, Moscow Region 141980, Russia
| | - N Fujioka
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - M Fujita
- Advanced Science Research Center (ASRC), Japan Atomic Energy Agency (JAEA), Tokai, Ibaraki 319-1195, Japan
| | - T Gogami
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - T Harada
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - S Hasegawa
- Advanced Science Research Center (ASRC), Japan Atomic Energy Agency (JAEA), Tokai, Ibaraki 319-1195, Japan
| | - S H Hayakawa
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - R Honda
- Institute of Particle and Nuclear Studies (IPNS), High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - S Hoshino
- Department of Physics, Osaka University, Toyonaka 560-0043, Japan
| | - K Hosomi
- Advanced Science Research Center (ASRC), Japan Atomic Energy Agency (JAEA), Tokai, Ibaraki 319-1195, Japan
| | - M Ichikawa
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
- Meson Science Laboratory, Cluster for Pioneering Research, RIKEN, Wako 351-0198, Japan
| | - Y Ichikawa
- Advanced Science Research Center (ASRC), Japan Atomic Energy Agency (JAEA), Tokai, Ibaraki 319-1195, Japan
| | - M Ieiri
- Institute of Particle and Nuclear Studies (IPNS), High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - M Ikeda
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - K Imai
- Advanced Science Research Center (ASRC), Japan Atomic Energy Agency (JAEA), Tokai, Ibaraki 319-1195, Japan
| | - Y Ishikawa
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - S Ishimoto
- Institute of Particle and Nuclear Studies (IPNS), High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - W S Jung
- Department of Physics, Korea University, Seoul 02841, Korea
| | - S Kajikawa
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - H Kanauchi
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - H Kanda
- Research Center for Nuclear Physics (RCNP), Osaka University, Ibaraki 567-0047, Japan
| | - T Kitaoka
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - B M Kang
- Department of Physics, Korea University, Seoul 02841, Korea
| | - H Kawai
- Department of Physics, Chiba University, Chiba 263-8522, Japan
| | - S H Kim
- Department of Physics, Korea University, Seoul 02841, Korea
| | - K Kobayashi
- Department of Physics, Osaka University, Toyonaka 560-0043, Japan
| | - T Koike
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - K Matsuda
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - Y Matsumoto
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - S Nagao
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - R Nagatomi
- Department of Physics, Osaka University, Toyonaka 560-0043, Japan
| | - Y Nakada
- Department of Physics, Osaka University, Toyonaka 560-0043, Japan
| | - M Nakagawa
- High Energy Nuclear Physics Laboratory, RIKEN, Wako 351-0198, Japan
| | - I Nakamura
- Institute of Particle and Nuclear Studies (IPNS), High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - T Nanamura
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
- Advanced Science Research Center (ASRC), Japan Atomic Energy Agency (JAEA), Tokai, Ibaraki 319-1195, Japan
| | - M Naruki
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - S Ozawa
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - L Raux
- OMEGA Ecole Polytechnique-CNRS/IN2P3, 3 rue Michel-Ange, 75794 Paris 16, France
| | - T G Rogers
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - A Sakaguchi
- Department of Physics, Osaka University, Toyonaka 560-0043, Japan
| | - T Sakao
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - H Sako
- Advanced Science Research Center (ASRC), Japan Atomic Energy Agency (JAEA), Tokai, Ibaraki 319-1195, Japan
| | - S Sato
- Advanced Science Research Center (ASRC), Japan Atomic Energy Agency (JAEA), Tokai, Ibaraki 319-1195, Japan
| | - T Shiozaki
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - K Shirotori
- Research Center for Nuclear Physics (RCNP), Osaka University, Ibaraki 567-0047, Japan
| | - K N Suzuki
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - S Suzuki
- Institute of Particle and Nuclear Studies (IPNS), High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - M Tabata
- Department of Physics, Chiba University, Chiba 263-8522, Japan
| | - C D L Taille
- OMEGA Ecole Polytechnique-CNRS/IN2P3, 3 rue Michel-Ange, 75794 Paris 16, France
| | - H Takahashi
- Institute of Particle and Nuclear Studies (IPNS), High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - T Takahashi
- Institute of Particle and Nuclear Studies (IPNS), High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - T N Takahashi
- Nishina Center for Accelerator-based Science, RIKEN, Wako 351-0198, Japan
| | - H Tamura
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
- Advanced Science Research Center (ASRC), Japan Atomic Energy Agency (JAEA), Tokai, Ibaraki 319-1195, Japan
| | - M Tanaka
- Institute of Particle and Nuclear Studies (IPNS), High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - K Tanida
- Advanced Science Research Center (ASRC), Japan Atomic Energy Agency (JAEA), Tokai, Ibaraki 319-1195, Japan
| | - Z Tsamalaidze
- Joint Institute for Nuclear Research (JINR), Dubna, Moscow Region 141980, Russia
- Georgian Technical University (GTU), Tbilisi 0175, Georgia
| | - M Ukai
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
- Institute of Particle and Nuclear Studies (IPNS), High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - H Umetsu
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - S Wada
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - T O Yamamoto
- Advanced Science Research Center (ASRC), Japan Atomic Energy Agency (JAEA), Tokai, Ibaraki 319-1195, Japan
| | - J Yoshida
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - K Yoshimura
- Department of Physics, Okayama University, Okayama 700-8530, Japan
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10
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Miwa K, Nanamura T, Sakao T, Ahn JK, Akazawa Y, Aramaki T, Ashikaga S, Callier S, Chiga N, Chiga N, Choi SW, Ekawa H, Evtoukhovitch P, Fujioka N, Fujita M, Gogami T, Harada T, Hasegawa S, Hayakawa SH, Honda R, Hoshino S, Hosomi K, Ichikawa M, Ichikawa Y, Ieiri M, Ikedai M, Imai K, Ishikawa Y, Ishimoto S, Jung WS, Kajikawa S, Kanauchi H, Kanda H, Kitaoka T, Kang BM, Kawai H, Kim SH, Kobayashi K, Koike T, Matsuda K, Matsumoto Y, Nagao S, Nagatomi R, Nakada Y, Nakagawa M, Nakamura I, Naruki M, Ozawa S, Raux L, Rogers TG, Sakaguchi A, Sako H, Sato S, Shiozaki T, Shirotori K, Suzuki KN, Suzuki S, Tabata M, Taille CDL, Takahashi H, Takahashi T, Takahashi TN, Tamura H, Tanaka M, Tanida K, Tsamalaidze Z, Ukai M, Umetsu H, Wada S, Yamamoto TO, Yoshida J, Yoshimura K. Recent progress and future prospects of hyperon nucleon scattering experiment. EPJ Web Conf 2022. [DOI: 10.1051/epjconf/202227104001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
A new hyperon-proton scattering experiment, dubbed J-PARC E40, was performed to measure differential cross sections of the Σ+p, Σ−p elastic scatterings and the Σ−p → Λn scattering by identifying a lot of Σ particles in the momentum ranging from 0.4 to 0.8 GeV/c produced by the π±p → K+Σ± reactions. We successfully measured the differential cross sections of these three channels with a drastically improved accuracy with a fine angular step. These new data will become important experimental constraints to improve the theories of the two-body baryon-baryon interactions. Following this success, we proposed a new experiment to measure the differential cross sections and spin observables by using a highly polarized Λ beam for providing quantitative information on the ΛN interaction. The results of three Σp channels and future prospects of the Λp scattering experiment are described.
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11
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Hayakawa SH, Agari K, Ahn JK, Akaishi T, Akazawa Y, Ashikaga S, Bassalleck B, Bleser S, Ekawa H, Endo Y, Fujikawa Y, Fujioka N, Fujita M, Goto R, Han Y, Hasegawa S, Hashimoto T, Hayakawa T, Hayata E, Hicks K, Hirose E, Hirose M, Honda R, Hoshino K, Hoshino S, Hosomi K, Hwang SH, Ichikawa Y, Ichikawa M, Imai K, Inaba K, Ishikawa Y, Ito H, Ito K, Jung WS, Kanatsuki S, Kanauchi H, Kasagi A, Kawai T, Kim MH, Kim SH, Kinbara S, Kiuchi R, Kobayashi H, Kobayashi K, Koike T, Koshikawa A, Lee JY, Ma TL, Matsumoto SY, Minakawa M, Miwa K, Moe AT, Moon TJ, Moritsu M, Nagase Y, Nakada Y, Nakagawa M, Nakashima D, Nakazawa K, Nanamura T, Naruki M, Nyaw ANL, Ogura Y, Ohashi M, Oue K, Ozawa S, Pochodzalla J, Ryu SY, Sako H, Sato S, Sato Y, Schupp F, Shirotori K, Soe MM, Soe MK, Sohn JY, Sugimura H, Suzuki KN, Takahashi H, Takahashi T, Takeda T, Tamura H, Tanida K, Theint AMM, Tint KT, Toyama Y, Ukai M, Umezaki E, Watabe T, Watanabe K, Yamamoto TO, Yang SB, Yoon CS, Yoshida J, Yoshimoto M, Zhang DH, Zhang Z. Observation of Coulomb-Assisted Nuclear Bound State of Ξ^{-}-^{14}N System. Phys Rev Lett 2021; 126:062501. [PMID: 33635678 DOI: 10.1103/physrevlett.126.062501] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 11/19/2020] [Accepted: 12/23/2020] [Indexed: 06/12/2023]
Abstract
In an emulsion-counter hybrid experiment performed at J-PARC, a Ξ^{-} absorption event was observed which decayed into twin single-Λ hypernuclei. Kinematic calculations enabled a unique identification of the reaction process as Ξ^{-}+^{14}N→_{Λ}^{10}Be+_{Λ}^{5}He. For the binding energy of the Ξ^{-} hyperon in the Ξ^{-}-^{14}N system a value of 1.27±0.21 MeV was deduced. The energy level of Ξ^{-} is likely a nuclear 1p state which indicates a weak ΞN-ΛΛ coupling.
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Affiliation(s)
- S H Hayakawa
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - K Agari
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - J K Ahn
- Department of Physics, Korea University, Seoul 02841, Korea
| | - T Akaishi
- Department of Physics, Osaka University, Toyonaka 560-0043, Japan
| | - Y Akazawa
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - S Ashikaga
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - B Bassalleck
- Department of Physics and Astronomy, University of New Mexico, Albuquerque, New Mexico 87131, USA
| | - S Bleser
- Helmholtz Institute Mainz, 55099 Mainz, Germany
| | - H Ekawa
- High Energy Nuclear Physics Laboratory, RIKEN, Wako 351-0198, Japan
| | - Y Endo
- Faculty of Education, Gifu University, Gifu 501-1193, Japan
| | - Y Fujikawa
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - N Fujioka
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - M Fujita
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - R Goto
- Faculty of Education, Gifu University, Gifu 501-1193, Japan
| | - Y Han
- Institute of Nuclear Energy Safety Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
| | - S Hasegawa
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - T Hashimoto
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - T Hayakawa
- Department of Physics, Osaka University, Toyonaka 560-0043, Japan
| | - E Hayata
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - K Hicks
- Department of Physics & Astronomy, Ohio University, Athens, Ohio 45701, USA
| | - E Hirose
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - M Hirose
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - R Honda
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - K Hoshino
- Faculty of Education, Gifu University, Gifu 501-1193, Japan
| | - S Hoshino
- Department of Physics, Osaka University, Toyonaka 560-0043, Japan
| | - K Hosomi
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - S H Hwang
- Korea Research Institute of Standards and Science, Daejeon 34113, Korea
| | - Y Ichikawa
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - M Ichikawa
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
- Meson Science Laboratory, RIKEN, Wako 351-0198, Japan
| | - K Imai
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - K Inaba
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - Y Ishikawa
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - H Ito
- Faculty of Education, Gifu University, Gifu 501-1193, Japan
| | - K Ito
- Department of Physics, Nagoya University, Nagoya 464-8601, Japan
| | - W S Jung
- Department of Physics, Korea University, Seoul 02841, Korea
| | - S Kanatsuki
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - H Kanauchi
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - A Kasagi
- High Energy Nuclear Physics Laboratory, RIKEN, Wako 351-0198, Japan
- Graduate School of Engineering, Gifu University, Gifu 501-1193, Japan
| | - T Kawai
- Center for Advanced Photonics, RIKEN, Wako 351-0198, Japan
| | - M H Kim
- Department of Physics, Korea University, Seoul 02841, Korea
| | - S H Kim
- Department of Physics, Korea University, Seoul 02841, Korea
| | - S Kinbara
- Graduate School of Engineering, Gifu University, Gifu 501-1193, Japan
| | - R Kiuchi
- Institute of High Energy Physics, Beijing 100049, China
| | - H Kobayashi
- Faculty of Education, Gifu University, Gifu 501-1193, Japan
| | - K Kobayashi
- Department of Physics, Osaka University, Toyonaka 560-0043, Japan
| | - T Koike
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - A Koshikawa
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - J Y Lee
- Department of Physics, Seoul National University, Seoul 08826, Korea
| | - T L Ma
- Institute of Modern Physics, Shanxi Normal University, Linfen 041004, China
| | - S Y Matsumoto
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
- Meson Science Laboratory, RIKEN, Wako 351-0198, Japan
| | - M Minakawa
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - K Miwa
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - A T Moe
- Department of Physics, Lashio University, Lashio 06301, Myanmar
| | - T J Moon
- Department of Physics, Seoul National University, Seoul 08826, Korea
| | - M Moritsu
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - Y Nagase
- Faculty of Education, Gifu University, Gifu 501-1193, Japan
| | - Y Nakada
- Department of Physics, Osaka University, Toyonaka 560-0043, Japan
| | - M Nakagawa
- High Energy Nuclear Physics Laboratory, RIKEN, Wako 351-0198, Japan
| | - D Nakashima
- Faculty of Education, Gifu University, Gifu 501-1193, Japan
| | - K Nakazawa
- Faculty of Education, Gifu University, Gifu 501-1193, Japan
- Graduate School of Engineering, Gifu University, Gifu 501-1193, Japan
| | - T Nanamura
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - M Naruki
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - A N L Nyaw
- Graduate School of Engineering, Gifu University, Gifu 501-1193, Japan
| | - Y Ogura
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - M Ohashi
- Faculty of Education, Gifu University, Gifu 501-1193, Japan
| | - K Oue
- Department of Physics, Osaka University, Toyonaka 560-0043, Japan
| | - S Ozawa
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - J Pochodzalla
- Helmholtz Institute Mainz, 55099 Mainz, Germany
- Institut fur Kernphysik, Johannes Gutenberg-Universitat, 55099 Mainz, Germany
| | - S Y Ryu
- Research Center for Nuclear Physics, Osaka University, Osaka 567-0047, Japan
| | - H Sako
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - S Sato
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - Y Sato
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - F Schupp
- Helmholtz Institute Mainz, 55099 Mainz, Germany
| | - K Shirotori
- Research Center for Nuclear Physics, Osaka University, Osaka 567-0047, Japan
| | - M M Soe
- Department of Physics, University of Yangon, Yangon 11041, Myanmar
| | - M K Soe
- Graduate School of Engineering, Gifu University, Gifu 501-1193, Japan
| | - J Y Sohn
- Research Institute of Natural Science, Gyeongsang National University, Jinju 52828, Korea
| | - H Sugimura
- Accelerator Laboratory, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - K N Suzuki
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - H Takahashi
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - T Takahashi
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - T Takeda
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - H Tamura
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - K Tanida
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - A M M Theint
- Graduate School of Engineering, Gifu University, Gifu 501-1193, Japan
| | - K T Tint
- Faculty of Education, Gifu University, Gifu 501-1193, Japan
| | - Y Toyama
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - M Ukai
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - E Umezaki
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - T Watabe
- Department of Physics, Nagoya University, Nagoya 464-8601, Japan
| | - K Watanabe
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - T O Yamamoto
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - S B Yang
- Department of Physics, Korea University, Seoul 02841, Korea
| | - C S Yoon
- Research Institute of Natural Science, Gyeongsang National University, Jinju 52828, Korea
| | - J Yoshida
- High Energy Nuclear Physics Laboratory, RIKEN, Wako 351-0198, Japan
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - M Yoshimoto
- Faculty of Education, Gifu University, Gifu 501-1193, Japan
| | - D H Zhang
- Institute of Modern Physics, Shanxi Normal University, Linfen 041004, China
| | - Z Zhang
- Institute of Modern Physics, Shanxi Normal University, Linfen 041004, China
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12
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Kozakai R, Ono T, Hoshino S, Takahashi H, Katsuyama Y, Sugai Y, Ozaki T, Teramoto K, Teramoto K, Tanaka K, Abe I, Asamizu S, Onaka H. Acyltransferase that catalyses the condensation of polyketide and peptide moieties of goadvionin hybrid lipopeptides. Nat Chem 2020; 12:869-877. [PMID: 32719482 DOI: 10.1038/s41557-020-0508-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Accepted: 06/11/2020] [Indexed: 01/10/2023]
Abstract
Fusions of fatty acids and peptides expand the structural diversity of natural products; however, polyketide/ribosomally synthesized and post-translationally modified peptides (PK/RiPPs) hybrid lipopeptides are relatively rare. Here we report a family of PK/RiPPs called goadvionins, which inhibit the growth of Gram-positive bacteria, and an acyltransferase, GdvG, which catalyses the condensation of the PK and RiPP moieties. Goadvionin comprises a trimethylammonio 32-carbon acyl chain and an eight-residue RiPP with an avionin structure. The positions of six hydroxyl groups and one double bond in the very-long acyl chain were determined by radical-induced dissociation tandem mass spectrometry, which collides radical ion species to generate C-C bond cleavage fragments. GdvG belongs to the Gcn5-related N-acetyltransferase superfamily. Unlike conventional acyltransferases, GdvG transfers a very long acyl chain that is tethered to an acyl carrier protein to the N-terminal amino group of the RiPP moiety. gdvG homologues flanked by PK/fatty acid and RiPP biosynthesis genes are widely distributed in microbial species, suggesting that acyltransferase-catalysed condensation of PKs and RiPPs is a general strategy in biosynthesis of similar lipopeptides.
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Affiliation(s)
- Ryosuke Kozakai
- Graduate School of Agricultural and Life Sciences, Department of Biotechnology, The University of Tokyo, Tokyo, Japan
| | - Takuto Ono
- Graduate School of Agricultural and Life Sciences, Department of Biotechnology, The University of Tokyo, Tokyo, Japan
| | - Shotaro Hoshino
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| | - Hidenori Takahashi
- Koichi Tanaka Mass Spectrometry Research Laboratory Shimadzu Corporation, Kyoto, Japan
| | - Yohei Katsuyama
- Graduate School of Agricultural and Life Sciences, Department of Biotechnology, The University of Tokyo, Tokyo, Japan.,Collaborative Research Institute for Innovative Microbiology, The University of Tokyo, Tokyo, Japan
| | - Yoshinori Sugai
- Graduate School of Agricultural and Life Sciences, Department of Biotechnology, The University of Tokyo, Tokyo, Japan
| | - Taro Ozaki
- Graduate School of Agricultural and Life Sciences, Department of Biotechnology, The University of Tokyo, Tokyo, Japan
| | - Kazuya Teramoto
- Graduate School of Agricultural and Life Sciences, Department of Biotechnology, The University of Tokyo, Tokyo, Japan.,Collaborative Research Institute for Innovative Microbiology, The University of Tokyo, Tokyo, Japan
| | - Kanae Teramoto
- Koichi Tanaka Mass Spectrometry Research Laboratory Shimadzu Corporation, Kyoto, Japan
| | - Koichi Tanaka
- Koichi Tanaka Mass Spectrometry Research Laboratory Shimadzu Corporation, Kyoto, Japan
| | - Ikuro Abe
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan.,Collaborative Research Institute for Innovative Microbiology, The University of Tokyo, Tokyo, Japan
| | - Shumpei Asamizu
- Graduate School of Agricultural and Life Sciences, Department of Biotechnology, The University of Tokyo, Tokyo, Japan.,Collaborative Research Institute for Innovative Microbiology, The University of Tokyo, Tokyo, Japan
| | - Hiroyasu Onaka
- Graduate School of Agricultural and Life Sciences, Department of Biotechnology, The University of Tokyo, Tokyo, Japan. .,Collaborative Research Institute for Innovative Microbiology, The University of Tokyo, Tokyo, Japan.
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13
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Tanaka M, Takechi M, Homma A, Fukuda M, Nishimura D, Suzuki T, Tanaka Y, Moriguchi T, Ahn DS, Aimaganbetov A, Amano M, Arakawa H, Bagchi S, Behr KH, Burtebayev N, Chikaato K, Du H, Ebata S, Fujii T, Fukuda N, Geissel H, Hori T, Horiuchi W, Hoshino S, Igosawa R, Ikeda A, Inabe N, Inomata K, Itahashi K, Izumikawa T, Kamioka D, Kanda N, Kato I, Kenzhina I, Korkulu Z, Kuk Y, Kusaka K, Matsuta K, Mihara M, Miyata E, Nagae D, Nakamura S, Nassurlla M, Nishimuro K, Nishizuka K, Ohnishi K, Ohtake M, Ohtsubo T, Omika S, Ong HJ, Ozawa A, Prochazka A, Sakurai H, Scheidenberger C, Shimizu Y, Sugihara T, Sumikama T, Suzuki H, Suzuki S, Takeda H, Tanaka YK, Tanihata I, Wada T, Wakayama K, Yagi S, Yamaguchi T, Yanagihara R, Yanagisawa Y, Yoshida K, Zholdybayev TK. Swelling of Doubly Magic ^{48}Ca Core in Ca Isotopes beyond N=28. Phys Rev Lett 2020; 124:102501. [PMID: 32216444 DOI: 10.1103/physrevlett.124.102501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 12/20/2019] [Accepted: 01/30/2020] [Indexed: 06/10/2023]
Abstract
Interaction cross sections for ^{42-51}Ca on a carbon target at 280 MeV/nucleon have been measured for the first time. The neutron number dependence of derived root-mean-square matter radii shows a significant increase beyond the neutron magic number N=28. Furthermore, this enhancement of matter radii is much larger than that of the previously measured charge radii, indicating a novel growth in neutron skin thickness. A simple examination based on the Fermi-type distribution, and mean field calculations point out that this anomalous enhancement of the nuclear size beyond N=28 results from an enlargement of the core by a sudden increase in the surface diffuseness of the neutron density distribution, which implies the swelling of the bare ^{48}Ca core in Ca isotopes beyond N=28.
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Affiliation(s)
- M Tanaka
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
- Research Center for Superheavy Elements, Kyushu University, Fukuoka 819-0395, Japan
| | - M Takechi
- Department of Physics, Niigata University, Ikarashi, Niigata 951-2181, Japan
| | - A Homma
- Department of Physics, Niigata University, Ikarashi, Niigata 951-2181, Japan
| | - M Fukuda
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - D Nishimura
- Department of Physics, Tokyo City University, Setagaya, Tokyo 158-8557, Japan
| | - T Suzuki
- Department of Physics, Saitama University, Saitama 338-8570, Japan
| | - Y Tanaka
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - T Moriguchi
- Institute of Physics, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
| | - D S Ahn
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - A Aimaganbetov
- Institute of Nuclear Physics, 050032 Almaty, Kazakhstan
- L.N. Gumilyov Eurasian National University, 010008 Astana, Kazakhstan
| | - M Amano
- Institute of Physics, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
| | - H Arakawa
- Department of Physics, Saitama University, Saitama 338-8570, Japan
| | - S Bagchi
- Astronomy and Physics Department, Saint Mary's University, Halifax, Nova Scotia B3H 3C3, Canada
- Justus Liebig University, 35392 Giessen, Germany
- GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany
| | - K-H Behr
- GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany
| | - N Burtebayev
- Institute of Nuclear Physics, 050032 Almaty, Kazakhstan
| | - K Chikaato
- Department of Physics, Niigata University, Ikarashi, Niigata 951-2181, Japan
| | - H Du
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - S Ebata
- Department of Physics, Saitama University, Saitama 338-8570, Japan
- School of Environment and Society, Tokyo Institute of Technology, Meguro, Tokyo 152-8551, Japan
| | - T Fujii
- Department of Physics, Saitama University, Saitama 338-8570, Japan
| | - N Fukuda
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - H Geissel
- GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany
| | - T Hori
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - W Horiuchi
- Department of Physics, Hokkaido University, Sapporo 060-0810, Japan
| | - S Hoshino
- Department of Physics, Niigata University, Ikarashi, Niigata 951-2181, Japan
| | - R Igosawa
- Department of Physics, Saitama University, Saitama 338-8570, Japan
| | - A Ikeda
- Department of Physics, Niigata University, Ikarashi, Niigata 951-2181, Japan
| | - N Inabe
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - K Inomata
- Department of Physics, Saitama University, Saitama 338-8570, Japan
| | - K Itahashi
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - T Izumikawa
- Institute for Research Promotion, Niigata University, Niigata 950-8510, Japan
| | - D Kamioka
- Institute of Physics, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
| | - N Kanda
- Department of Physics, Niigata University, Ikarashi, Niigata 951-2181, Japan
| | - I Kato
- Department of Physics, Saitama University, Saitama 338-8570, Japan
| | - I Kenzhina
- Institute of Nuclear Physics, 050032 Almaty, Kazakhstan
- Al-Farabi Kazakh National University, 050040 Almaty, Kazakhstan
| | - Z Korkulu
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - Y Kuk
- Institute of Nuclear Physics, 050032 Almaty, Kazakhstan
- L.N. Gumilyov Eurasian National University, 010008 Astana, Kazakhstan
| | - K Kusaka
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - K Matsuta
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - M Mihara
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - E Miyata
- Department of Physics, Niigata University, Ikarashi, Niigata 951-2181, Japan
| | - D Nagae
- Research Center for Superheavy Elements, Kyushu University, Fukuoka 819-0395, Japan
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - S Nakamura
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - M Nassurlla
- Institute of Nuclear Physics, 050032 Almaty, Kazakhstan
- Al-Farabi Kazakh National University, 050040 Almaty, Kazakhstan
| | - K Nishimuro
- Department of Physics, Saitama University, Saitama 338-8570, Japan
| | - K Nishizuka
- Department of Physics, Niigata University, Ikarashi, Niigata 951-2181, Japan
| | - K Ohnishi
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - M Ohtake
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - T Ohtsubo
- Department of Physics, Niigata University, Ikarashi, Niigata 951-2181, Japan
| | - S Omika
- Department of Physics, Saitama University, Saitama 338-8570, Japan
| | - H J Ong
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - A Ozawa
- Institute of Physics, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
| | - A Prochazka
- GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany
| | - H Sakurai
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
- Department of Physics, University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - C Scheidenberger
- GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany
| | - Y Shimizu
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - T Sugihara
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - T Sumikama
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - H Suzuki
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - S Suzuki
- Institute of Physics, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
| | - H Takeda
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - Y K Tanaka
- GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany
| | - I Tanihata
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
- School of Physics and Nuclear Energy Engineering, Beihang University, 100191 Beijing, China
| | - T Wada
- Department of Physics, Niigata University, Ikarashi, Niigata 951-2181, Japan
| | - K Wakayama
- Department of Physics, Saitama University, Saitama 338-8570, Japan
| | - S Yagi
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - T Yamaguchi
- Department of Physics, Saitama University, Saitama 338-8570, Japan
- Tomonaga Center for the History of the Universe, University of Tsukuba, Ibaraki 305-8571, Japan
| | - R Yanagihara
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Y Yanagisawa
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - K Yoshida
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - T K Zholdybayev
- Institute of Nuclear Physics, 050032 Almaty, Kazakhstan
- Al-Farabi Kazakh National University, 050040 Almaty, Kazakhstan
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14
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Morita I, Mori T, Mitsuhashi T, Hoshino S, Taniguchi Y, Kikuchi T, Nagae K, Nasu N, Fujita M, Ohwada T, Abe I. Frontispiece: Exploiting a C–N Bond Forming Cytochrome P450 Monooxygenase for C–S Bond Formation. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/anie.202081062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Iori Morita
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
| | - Takahiro Mori
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
- Collaborative Research Institute for Innovative Microbiology The University of Tokyo 1-1-1 Yayoi Bunkyo-ku Tokyo 113-8657 Japan
| | - Takaaki Mitsuhashi
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
| | - Shotaro Hoshino
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
| | - Yoshimasa Taniguchi
- Central Laboratories for Key Technologies Kirin Holdings Co. Ltd. 1-13-5, Fukuura Kana-zawa-ku Yokohama-shi Kanagawa 236-0004 Japan
| | - Takashi Kikuchi
- Rigaku Corporation 3-9-12 Matsubara-cho, Akishima-shi Tokyo 196-8666 Japan
| | - Kei Nagae
- Nissan Chemical Corporation 2-10-1 Tsuboi-nishi, Funabashi-shi Chiba 274-8507 Japan
| | - Norihiro Nasu
- Mitsui Chemical Analysis & Consulting Service, Inc. 580-32 Nagaura, Sodegaura-city Chiba 299-0265 Japan
| | - Makoto Fujita
- Department of Applied Chemistry Graduate School of Engineering The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-8656 Japan
- Division of Advanced Molecular Science Institute for Molecular Science National Institutes of Natural Sciences 5-1 Higashiyama Myodaiji, Okazaki 444-8787 Japan
| | - Tomohiko Ohwada
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
| | - Ikuro Abe
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
- Collaborative Research Institute for Innovative Microbiology The University of Tokyo 1-1-1 Yayoi Bunkyo-ku Tokyo 113-8657 Japan
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15
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Morita I, Mori T, Mitsuhashi T, Hoshino S, Taniguchi Y, Kikuchi T, Nagae K, Nasu N, Fujita M, Ohwada T, Abe I. Frontispiz: Exploiting a C–N Bond Forming Cytochrome P450 Monooxygenase for C–S Bond Formation. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202081062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Iori Morita
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
| | - Takahiro Mori
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
- Collaborative Research Institute for Innovative Microbiology The University of Tokyo 1-1-1 Yayoi Bunkyo-ku Tokyo 113-8657 Japan
| | - Takaaki Mitsuhashi
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
| | - Shotaro Hoshino
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
| | - Yoshimasa Taniguchi
- Central Laboratories for Key Technologies Kirin Holdings Co. Ltd. 1-13-5, Fukuura Kana-zawa-ku Yokohama-shi Kanagawa 236-0004 Japan
| | - Takashi Kikuchi
- Rigaku Corporation 3-9-12 Matsubara-cho, Akishima-shi Tokyo 196-8666 Japan
| | - Kei Nagae
- Nissan Chemical Corporation 2-10-1 Tsuboi-nishi, Funabashi-shi Chiba 274-8507 Japan
| | - Norihiro Nasu
- Mitsui Chemical Analysis & Consulting Service, Inc. 580-32 Nagaura, Sodegaura-city Chiba 299-0265 Japan
| | - Makoto Fujita
- Department of Applied Chemistry Graduate School of Engineering The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-8656 Japan
- Division of Advanced Molecular Science Institute for Molecular Science National Institutes of Natural Sciences 5-1 Higashiyama Myodaiji, Okazaki 444-8787 Japan
| | - Tomohiko Ohwada
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
| | - Ikuro Abe
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
- Collaborative Research Institute for Innovative Microbiology The University of Tokyo 1-1-1 Yayoi Bunkyo-ku Tokyo 113-8657 Japan
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16
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Morita I, Mori T, Mitsuhashi T, Hoshino S, Taniguchi Y, Kikuchi T, Nagae K, Nasu N, Fujita M, Ohwada T, Abe I. Exploiting a C–N Bond Forming Cytochrome P450 Monooxygenase for C–S Bond Formation. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201916269] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Iori Morita
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
| | - Takahiro Mori
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
- Collaborative Research Institute for Innovative Microbiology The University of Tokyo 1-1-1 Yayoi Bunkyo-ku Tokyo 113-8657 Japan
| | - Takaaki Mitsuhashi
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
| | - Shotaro Hoshino
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
| | - Yoshimasa Taniguchi
- Central Laboratories for Key Technologies Kirin Holdings Co. Ltd. 1-13-5, Fukuura Kana-zawa-ku Yokohama-shi Kanagawa 236-0004 Japan
| | - Takashi Kikuchi
- Rigaku Corporation 3-9-12 Matsubara-cho, Akishima-shi Tokyo 196-8666 Japan
| | - Kei Nagae
- Nissan Chemical Corporation 2-10-1 Tsuboi-nishi, Funabashi-shi Chiba 274-8507 Japan
| | - Norihiro Nasu
- Mitsui Chemical Analysis & Consulting Service, Inc. 580-32 Nagaura, Sodegaura-city Chiba 299-0265 Japan
| | - Makoto Fujita
- Department of Applied Chemistry Graduate School of Engineering The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-8656 Japan
- Division of Advanced Molecular Science Institute for Molecular Science National Institutes of Natural Sciences 5-1 Higashiyama Myodaiji, Okazaki 444-8787 Japan
| | - Tomohiko Ohwada
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
| | - Ikuro Abe
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
- Collaborative Research Institute for Innovative Microbiology The University of Tokyo 1-1-1 Yayoi Bunkyo-ku Tokyo 113-8657 Japan
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Morita I, Mori T, Mitsuhashi T, Hoshino S, Taniguchi Y, Kikuchi T, Nagae K, Nasu N, Fujita M, Ohwada T, Abe I. Exploiting a C-N Bond Forming Cytochrome P450 Monooxygenase for C-S Bond Formation. Angew Chem Int Ed Engl 2020; 59:3988-3993. [PMID: 31886618 DOI: 10.1002/anie.201916269] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Indexed: 01/01/2023]
Abstract
C-S bond formation reactions are widely distributed in the biosynthesis of biologically active molecules, and thus have received much attention over the past decades. Herein, we report intramolecular C-S bond formation by a P450 monooxygenase, TleB, which normally catalyzes a C-N bond formation in teleocidin biosynthesis. Based on the proposed reaction mechanism of TleB, a thiol-substituted substrate analogue was synthesized and tested in the enzyme reaction, which afforded the unprecedented sulfur-containing thio-indolactam V, in addition to an unusual indole-fused 6/5/8-tricyclic product whose structure was determined by the crystalline sponge method. Interestingly, conformational analysis revealed that the SOFA conformation is stable in thio-indolactam V, in sharp contrast to the major TWIST form in indolactam V, resulting in differences in their biological activities.
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Affiliation(s)
- Iori Morita
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Takahiro Mori
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.,Collaborative Research Institute for Innovative Microbiology, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Takaaki Mitsuhashi
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Shotaro Hoshino
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Yoshimasa Taniguchi
- Central Laboratories for Key Technologies, Kirin Holdings Co. Ltd., 1-13-5, Fukuura Kana-zawa-ku, Yokohama-shi, Kanagawa, 236-0004, Japan
| | - Takashi Kikuchi
- Rigaku Corporation, 3-9-12 Matsubara-cho, Akishima-shi, Tokyo, 196-8666, Japan
| | - Kei Nagae
- Nissan Chemical Corporation, 2-10-1 Tsuboi-nishi, Funabashi-shi, Chiba, 274-8507, Japan
| | - Norihiro Nasu
- Mitsui Chemical Analysis & Consulting Service, Inc., 580-32 Nagaura, Sodegaura-city, Chiba, 299-0265, Japan
| | - Makoto Fujita
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan.,Division of Advanced Molecular Science, Institute for Molecular Science, National Institutes of Natural Sciences, 5-1 Higashiyama, Myodaiji, Okazaki, 444-8787, Japan
| | - Tomohiko Ohwada
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Ikuro Abe
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.,Collaborative Research Institute for Innovative Microbiology, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
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18
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He F, Mori T, Morita I, Nakamura H, Alblova M, Hoshino S, Awakawa T, Abe I. Molecular basis for the P450-catalyzed C–N bond formation in indolactam biosynthesis. Nat Chem Biol 2019; 15:1206-1213. [DOI: 10.1038/s41589-019-0380-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2019] [Accepted: 09/05/2019] [Indexed: 12/24/2022]
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19
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Hoshino S, Mitsuhashi T, Kikuchi T, Wong CP, Morita H, Awakawa T, Fujita M, Abe I. Structural Elucidation of Tenebrathin: Cytotoxic C-5-Substituted γ-Pyrone with a Nitroaryl Side Chain from Streptoalloteichus tenebrarius. Org Lett 2019; 21:6519-6522. [DOI: 10.1021/acs.orglett.9b02443] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Shotaro Hoshino
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Takaaki Mitsuhashi
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Takashi Kikuchi
- Rigaku Corporation, 3-9-12 Matsubara-cho, Akishima-shi, Tokyo 196-8666, Japan
| | - Chin Piow Wong
- Institute of Natural Medicine, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan
| | - Hiroyuki Morita
- Institute of Natural Medicine, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan
| | - Takayoshi Awakawa
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- Collaborative Research Institute for Innovative Microbiology, The University of Tokyo, Yayoi 1-1-1, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Makoto Fujita
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Division of Advanced Molecular Science, Institute for Molecular Science, National Institutes of Natural Sciences, 5-1 Higashiyama, Myodaiji, Okazaki 444-8787, Japan
| | - Ikuro Abe
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- Collaborative Research Institute for Innovative Microbiology, The University of Tokyo, Yayoi 1-1-1, Bunkyo-ku, Tokyo 113-8657, Japan
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20
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Hoshino S, Awakawa T, Zhang H, Hayashi F, Abe I. Beijinchromes A-D, Novel Aromatic Compounds Isolated from Nocardia beijingensis NBRC 16342. Chem Pharm Bull (Tokyo) 2019; 67:775-777. [PMID: 31366826 DOI: 10.1248/cpb.c19-00364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Nocardia is a potent bacterial producer of bioactive compounds. From a culture of Nocardia beijingensis NBRC 16342, we isolated four aromatic compounds, named beijinchromes A-D (1-4). We purified them by silica gel chromatography and reverse phase HPLC, and identified their structures by NMR and high resolution (HR)-MS analyses. 1, 2, and 4 are novel 1,2,3,8-tetrasubstituted naphthalenes, and 3 is a novel 3,8-disubstituted ortho-naphthoquinone. 1 and 2 exert antioxidant activities, and 3 exhibits antibiotic activity. Remarkably, the putative biosynthetic gene clusters for 1-4 are widely distributed in 37 Nocardia species, implying their potential to produce this family of compounds and important biological functions of beijinchromes.
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Affiliation(s)
- Shotaro Hoshino
- Graduate School of Pharmaceutical Sciences, The University of Tokyo
| | - Takayoshi Awakawa
- Graduate School of Pharmaceutical Sciences, The University of Tokyo.,Collaborative Research Institute for Innovative Microbiology, The University of Tokyo
| | | | | | - Ikuro Abe
- Graduate School of Pharmaceutical Sciences, The University of Tokyo.,Collaborative Research Institute for Innovative Microbiology, The University of Tokyo
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21
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Woo SY, Wong CP, Win NN, Hoshino S, Prema, Ngwe H, Abe I, Morita H. A New Tetrahydrofuran Lignan from Premna serratifolia Wood. Nat Prod Commun 2019. [DOI: 10.1177/1934578x1901400130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Phytochemical investigation of the CHCl3 extract of Premna serratifolia (syn: P. integrifolia) wood collected in Myanmar led to the isolation of a new tetrahydrofuran type lignan, 7,9-dihydroxydolichanthin B (1), together with two known triterpenoids, oleanonic acid (2) and (2a, 3α)-dihydroxyolean-12-en-28-oic acid (3). The structure of the new compound was determined using various spectroscopic techniques, mainly 1D- and 2D-NMR, HRESIMS, IR, and optical rotation, and by comparisons with the reported literatures. Compounds 1-3 had anti-melanin deposition activities against IBMX and α-MSH induced B16-F10 mouse melanoma cell line with IC50 values of 18.4, 17.7 and 11.2 μM, respectively. However, 2 exhibited cytotoxicity at concentrations above 50 μM.
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Affiliation(s)
- So-Yeun Woo
- Institute of Natural Medicine, University of Toyama, 2630-Sugitani, Toyama 930-0194, Japan
| | - Chin Piow Wong
- Institute of Natural Medicine, University of Toyama, 2630-Sugitani, Toyama 930-0194, Japan
| | - Nwet Nwet Win
- Institute of Natural Medicine, University of Toyama, 2630-Sugitani, Toyama 930-0194, Japan
| | - Shotaro Hoshino
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Prema
- Institute of Natural Medicine, University of Toyama, 2630-Sugitani, Toyama 930-0194, Japan
- Department of Chemistry, University of Yangon, Yangon 11041, Myanmar
| | - Hla Ngwe
- Department of Chemistry, University of Yangon, Yangon 11041, Myanmar
| | - Ikuro Abe
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- Collaborative Research Institute for Innovative Microbiology, The University of Tokyo, Yayoi 1-1-1, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Hiroyuki Morita
- Institute of Natural Medicine, University of Toyama, 2630-Sugitani, Toyama 930-0194, Japan
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22
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Woo SY, Hoshino S, Wong CP, Win NN, Awouafack MD, Ngwe H, Zhang H, Hayashi F, Abe I, Morita H. Lignans with melanogenesis effects from Premna serratifolia wood. Fitoterapia 2018; 133:35-42. [PMID: 30572089 DOI: 10.1016/j.fitote.2018.12.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Revised: 12/10/2018] [Accepted: 12/16/2018] [Indexed: 01/27/2023]
Abstract
Three new lignoids, premnan A (1), premnan B (2), and tauntangyiol C (3), were isolated from Premna serratifolia wood, a traditional cosmetic plant in Myanmar, together with a new lignoid, premnan C (4) assumed to be an artifact, one natural new lignoid (5), and three known lignoids (6-8). The structures of the new compounds 1-4 were elucidated based on 1D and 2D NMR, IR spectroscopy, and HRESIMS. The absolute configurations of 1-4 were also determined by optical rotation, circular dichroism (CD) data analyses, and comparisons with the reported literature. All isolated compounds were tested for their melanogenesis activities against the B16-F10 mouse melanoma cell line. Compounds 1 and 4 showed melanogenesis enhancing activities of 31% and 50%, respectively, at a 50 μM concentration. Compounds 2, 3, and 6 increased melanin production by 67%, 30%, and 45%, respectively, at a 100 μM concentration, without any cytotoxicity.
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Affiliation(s)
- So-Yeun Woo
- Institute of Natural Medicine, University of Toyama, 2630-Sugitani, Toyama 930-0194, Japan
| | - Shotaro Hoshino
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Chin Piow Wong
- Institute of Natural Medicine, University of Toyama, 2630-Sugitani, Toyama 930-0194, Japan
| | - Nwet Nwet Win
- Institute of Natural Medicine, University of Toyama, 2630-Sugitani, Toyama 930-0194, Japan
| | - Maurice Ducret Awouafack
- Institute of Natural Medicine, University of Toyama, 2630-Sugitani, Toyama 930-0194, Japan; Natural Products Chemistry Research Unit, Department of Chemistry, Faculty of Science, University of Dschang, P.O. Box 67, Dschang, Cameroon
| | - Hla Ngwe
- Department of Chemistry, University of Yangon, Yangon 11041, Myanmar
| | - Huiping Zhang
- RIKEN SPring-8 Center, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
| | - Fumiaki Hayashi
- RIKEN SPring-8 Center, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
| | - Ikuro Abe
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan; Collaborative Research Institute for Innovative Microbiology, The University of Tokyo, Yayoi 1-1-1, Bunkyo-ku, Tokyo 113-8657, Japan.
| | - Hiroyuki Morita
- Institute of Natural Medicine, University of Toyama, 2630-Sugitani, Toyama 930-0194, Japan.
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23
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Hoshino S, Ozeki M, Awakawa T, Morita H, Onaka H, Abe I. Catenulobactins A and B, Heterocyclic Peptides from Culturing Catenuloplanes sp. with a Mycolic Acid-Containing Bacterium. J Nat Prod 2018; 81:2106-2110. [PMID: 30130105 DOI: 10.1021/acs.jnatprod.8b00261] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The production of two new heterocyclic peptide isomers, catenulobactins A (1) and B (2), in cultures of Catenuloplanes sp. RD067331 was significantly increased when it was cocultured with a mycolic acid-containing bacterium. The planar structures and absolute configurations of the catenulobactins were determined based on NMR/MS and chiral-phase GC-MS analyses. Catenulobactin B (2) displayed Fe(III)-chelating activity and moderate cytotoxicity against P388 murine leukemia cells.
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Affiliation(s)
- Shotaro Hoshino
- Graduate School of Pharmaceutical Sciences , The University of Tokyo , Bunkyo-ku , Tokyo 113-0033 , Japan
| | - Masahiro Ozeki
- Graduate School of Pharmaceutical Sciences , The University of Tokyo , Bunkyo-ku , Tokyo 113-0033 , Japan
| | - Takayoshi Awakawa
- Graduate School of Pharmaceutical Sciences , The University of Tokyo , Bunkyo-ku , Tokyo 113-0033 , Japan
- Collaborative Research Institute for Innovative Microbiology , The University of Tokyo , Yayoi 1-1-1 , Bunkyo-ku , Tokyo 113-8657 , Japan
| | - Hiroyuki Morita
- Institute of Natural Medicine , University of Toyama , 2630-Sugitani , Toyama 930-0194 , Japan
| | - Hiroyasu Onaka
- Collaborative Research Institute for Innovative Microbiology , The University of Tokyo , Yayoi 1-1-1 , Bunkyo-ku , Tokyo 113-8657 , Japan
- Graduate School of Agricultural and Life Sciences , The University of Tokyo , Bunkyo-ku , Tokyo 113-8657 , Japan
| | - Ikuro Abe
- Graduate School of Pharmaceutical Sciences , The University of Tokyo , Bunkyo-ku , Tokyo 113-0033 , Japan
- Collaborative Research Institute for Innovative Microbiology , The University of Tokyo , Yayoi 1-1-1 , Bunkyo-ku , Tokyo 113-8657 , Japan
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Mitsuhashi T, Kikuchi T, Hoshino S, Ozeki M, Awakawa T, Shi SP, Fujita M, Abe I. Crystalline Sponge Method Enabled the Investigation of a Prenyltransferase-terpene Synthase Chimeric Enzyme, Whose Product Exhibits Broadened NMR Signals. Org Lett 2018; 20:5606-5609. [PMID: 30179018 DOI: 10.1021/acs.orglett.8b02284] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
By the genome-mining approach, a chimeric enzyme of prenyltransferase-diterpene synthase was discovered from Penicillium chrysogenum MT-12. Since its product exhibited broadened NMR signals, the structural determination by only the NMR analysis was difficult, but the crystalline sponge method successfully revealed the structure with a 6-5-5-5 fused ring system. This demonstrated that the collaboration between the genome-mining and crystalline sponge method has the potential to facilitate rapid inquiries into the unexplored chemical space of small molecules.
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Affiliation(s)
- Takaaki Mitsuhashi
- Graduate School of Pharmaceutical Sciences , The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku , Tokyo 113-0033 , Japan
| | - Takashi Kikuchi
- Rigaku Corporation , 3-9-12 Matsubara-cho, Akishima-shi , Tokyo 196-8666 , Japan
| | - Shotaro Hoshino
- Graduate School of Pharmaceutical Sciences , The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku , Tokyo 113-0033 , Japan
| | - Masahiro Ozeki
- Graduate School of Pharmaceutical Sciences , The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku , Tokyo 113-0033 , Japan
| | - Takayoshi Awakawa
- Graduate School of Pharmaceutical Sciences , The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku , Tokyo 113-0033 , Japan.,Collaborative Research Institute for Innovative Microbiology , The University of Tokyo , Yayoi 1-1-1, Bunkyo-ku , Tokyo 113-8657 , Japan
| | - She-Po Shi
- Modern Research Center for Traditional Chinese Medicine, School of Chinese Materia Medica , Beijing University of Chinese Medicine , Beijing 100029 , People's Republic of China
| | - Makoto Fujita
- Department of Applied Chemistry, Graduate School of Engineering , The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku , Tokyo 113-8656 , Japan
| | - Ikuro Abe
- Graduate School of Pharmaceutical Sciences , The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku , Tokyo 113-0033 , Japan.,Collaborative Research Institute for Innovative Microbiology , The University of Tokyo , Yayoi 1-1-1, Bunkyo-ku , Tokyo 113-8657 , Japan
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He F, Nakamura H, Hoshino S, Fong Chin JS, Yang L, Zhang H, Hayashi F, Abe I. Hinduchelins A-D, Noncytotoxic Catechol Derivatives from Streptoalloteichus hindustanus. J Nat Prod 2018; 81:1493-1496. [PMID: 29792433 DOI: 10.1021/acs.jnatprod.8b00049] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Four new catechol derivatives, hinduchelins A-D (1-4), composed of 2,3- dihydroxybenzoic acid, threonine, and decarboxylated phenylalanine, were isolated from Streptoalloteichus hindustanus. Their structures and absolute configurations were elucidated by interpretation of NMR and HRMS data and quantum chemical ECD calculations. The iron-binding properties of the compounds were evaluated by a pyoverdine production assay in Pseudomonas aeruginosa, and compound 4 showed moderate ability to induce pyoverdine production at 50 μM. None of the compounds were cytotoxic toward HL-20, A549, SMMC-7721, MCF-7, and SW-480 tumor cell lines.
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Affiliation(s)
- Fei He
- Graduate School of Pharmaceutical Sciences , The University of Tokyo , Bunkyo-ku, Tokyo 113-0033 , Japan
- Integrative Microbiology Research Centre, College of Agriculture , South China Agricultural University , Guangzhou 510642 , People's Republic of China
| | - Hitomi Nakamura
- Graduate School of Pharmaceutical Sciences , The University of Tokyo , Bunkyo-ku, Tokyo 113-0033 , Japan
| | - Shotaro Hoshino
- Graduate School of Pharmaceutical Sciences , The University of Tokyo , Bunkyo-ku, Tokyo 113-0033 , Japan
| | - Joyce Seow Fong Chin
- Singapore Centre for Environmental Life Sciences Engineering (SCELSE) , Nanyang Technological University , Singapore 637551 , Singapore
| | - Liang Yang
- Singapore Centre for Environmental Life Sciences Engineering (SCELSE) , Nanyang Technological University , Singapore 637551 , Singapore
| | - Huiping Zhang
- RIKEN Center for Life Science Technology , 1-7-22, Suehiro-cho , Tsurumi-ku, Yokuhama 230-0045 , Japan
| | - Fumiaki Hayashi
- RIKEN Center for Life Science Technology , 1-7-22, Suehiro-cho , Tsurumi-ku, Yokuhama 230-0045 , Japan
| | - Ikuro Abe
- Graduate School of Pharmaceutical Sciences , The University of Tokyo , Bunkyo-ku, Tokyo 113-0033 , Japan
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26
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Hoshino S, Ozeki M, Wong CP, Zhang H, Hayashi F, Awakawa T, Morita H, Onaka H, Abe I. Mirilactams C–E, Novel Polycyclic Macrolactams Isolated from Combined-Culture of Actinosynnema mirum NBRC 14064 and Mycolic Acid-Containing Bacterium. Chem Pharm Bull (Tokyo) 2018; 66:660-667. [DOI: 10.1248/cpb.c18-00143] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Shotaro Hoshino
- Graduate School of Pharmaceutical Sciences, The University of Tokyo
| | - Masahiro Ozeki
- Graduate School of Pharmaceutical Sciences, The University of Tokyo
| | | | | | | | | | | | - Hiroyasu Onaka
- Graduate School of Agricultural and Life Sciences, The University of Tokyo
| | - Ikuro Abe
- Graduate School of Pharmaceutical Sciences, The University of Tokyo
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27
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Hoshino S, Wong CP, Ozeki M, Zhang H, Hayashi F, Awakawa T, Asamizu S, Onaka H, Abe I. Umezawamides, new bioactive polycyclic tetramate macrolactams isolated from a combined-culture of Umezawaea sp. and mycolic acid-containing bacterium. J Antibiot (Tokyo) 2018. [DOI: 10.1038/s41429-018-0040-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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28
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Nakashima Y, Mori T, Nakamura H, Awakawa T, Hoshino S, Senda M, Senda T, Abe I. Structure function and engineering of multifunctional non-heme iron dependent oxygenases in fungal meroterpenoid biosynthesis. Nat Commun 2018; 9:104. [PMID: 29317628 PMCID: PMC5760668 DOI: 10.1038/s41467-017-02371-w] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Accepted: 11/24/2017] [Indexed: 01/17/2023] Open
Abstract
Non-heme iron and α-ketoglutarate (αKG) oxygenases catalyze remarkably diverse reactions using a single ferrous ion cofactor. A major challenge in studying this versatile family of enzymes is to understand their structure–function relationship. AusE from Aspergillus nidulans and PrhA from Penicillium brasilianum are two highly homologous Fe(II)/αKG oxygenases in fungal meroterpenoid biosynthetic pathways that use preaustinoid A1 as a common substrate to catalyze divergent rearrangement reactions to form the spiro-lactone in austinol and cycloheptadiene moiety in paraherquonin, respectively. Herein, we report the comparative structural study of AusE and PrhA, which led to the identification of three key active site residues that control their reactivity. Structure-guided mutagenesis of these residues results in successful interconversion of AusE and PrhA functions as well as generation of the PrhA double and triple mutants with expanded catalytic repertoire. Manipulation of the multifunctional Fe(II)/αKG oxygenases thus provides an excellent platform for the future development of biocatalysts. Non-heme iron and α-ketoglutarate (αKG) oxygenases play a major role in fungal meroterpenoid biosynthesis, but their mechanism remains elusive. Here the authors present crystal structures of two oxygenases, AusE and PrhA, which provide insights into the multifunctional nature of these enzymes.
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Affiliation(s)
- Yu Nakashima
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Takahiro Mori
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Hitomi Nakamura
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Takayoshi Awakawa
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Shotaro Hoshino
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Miki Senda
- Structural Biology Research Center, Institute of Materials Structure Science, High Energy Accelerator Research Organization, KEK, 1-1 Oho, Tsukuba, Ibaraki, 305-0801, Japan
| | - Toshiya Senda
- Structural Biology Research Center, Institute of Materials Structure Science, High Energy Accelerator Research Organization, KEK, 1-1 Oho, Tsukuba, Ibaraki, 305-0801, Japan. .,Department of Materials Structure Science, School of High Energy Accelerator Science, The Graduate University of Advanced Studies (Soken-dai), 1-1 Oho, Tsukuba, Ibaraki, 305-0801, Japan.
| | - Ikuro Abe
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.
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29
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Hoshino S. Comparison of magnetic resonance parkinsonism index between parkinson disease, progressive supranuclear palsy and spinocerebellar degeneration. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Hoshino S, Okada M, Awakawa T, Asamizu S, Onaka H, Abe I. Mycolic Acid Containing Bacterium Stimulates Tandem Cyclization of Polyene Macrolactam in a Lake Sediment Derived Rare Actinomycete. Org Lett 2017; 19:4992-4995. [DOI: 10.1021/acs.orglett.7b02508] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shotaro Hoshino
- Graduate
School of Pharmaceutical Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Masahiro Okada
- Graduate
School of Pharmaceutical Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Takayoshi Awakawa
- Graduate
School of Pharmaceutical Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Shumpei Asamizu
- Graduate
School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Hiroyasu Onaka
- Graduate
School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Ikuro Abe
- Graduate
School of Pharmaceutical Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
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31
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Mori T, Iwabuchi T, Hoshino S, Wang H, Matsuda Y, Abe I. Molecular basis for the unusual ring reconstruction in fungal meroterpenoid biogenesis. Nat Chem Biol 2017; 13:1066-1073. [DOI: 10.1038/nchembio.2443] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Accepted: 06/21/2017] [Indexed: 11/09/2022]
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32
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Okada M, Matsuda Y, Mitsuhashi T, Hoshino S, Mori T, Nakagawa K, Quan Z, Qin B, Zhang H, Hayashi F, Kawaide H, Abe I. Genome-Based Discovery of an Unprecedented Cyclization Mode in Fungal Sesterterpenoid Biosynthesis. J Am Chem Soc 2016; 138:10011-8. [DOI: 10.1021/jacs.6b05799] [Citation(s) in RCA: 88] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Masahiro Okada
- Graduate
School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Yudai Matsuda
- Graduate
School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Takaaki Mitsuhashi
- Graduate
School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Shotaro Hoshino
- Graduate
School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Takahiro Mori
- Graduate
School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Kazuya Nakagawa
- Institute
of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8
Saiwai-cho, Fuchu, Tokyo 183-8509, Japan
| | - Zhiyang Quan
- Graduate
School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Bin Qin
- Graduate
School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Huiping Zhang
- RIKEN Center for Life Science Technologies, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
| | - Fumiaki Hayashi
- RIKEN Center for Life Science Technologies, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
| | - Hiroshi Kawaide
- Institute
of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8
Saiwai-cho, Fuchu, Tokyo 183-8509, Japan
| | - Ikuro Abe
- Graduate
School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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Hoshino S, Okada M, Onaka H, Abe I. Effective Production of Aromatic Polyketides in Streptomyces using a Combined-Culture Method. Nat Prod Commun 2016; 11:979-981. [PMID: 30452176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023] Open
Abstract
Combinedculture is a fermentation method which efficiently induces secondary metabolite production in Streptomyces by co-culturing them with mycolic acid-containing bacteria. As a result of combined-culture screening -of our terrestrial Streptomyces collection using UV-HPLC, one of the tested strains, Streptoinyces. sp. TAKO-2, produced two known aromatic polyketides, julichrome Q6 (1) and julichrome Q₈.₈ (2), when co-cultured with the mycolic acid- containing bacterium Tsukamurella pulmonis TP-B0596. The structures of 1 and 2 were confirmed by spectroscopic analysis and literature data.
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Abstract
Combined-culture is a fermentation method which efficiently induces secondary metabolite production in Streptomyces by co-culturing them with mycolic acid-containing bacteria. As a result of combined-culture screening of our terrestrial Streptomyces collection using UV-HPLC, one of the tested strains, Streptomyces sp. TAKO-2, produced two known aromatic polyketides, julichrome Q6 (1) and julichrome Q8·8 (2), when co-cultured with the mycolic acid-containing bacterium Tsukamurella pulmonis TP-B0596. The structures of 1 and 2 were confirmed by spectroscopic analysis and literature data.
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Affiliation(s)
- Shotaro Hoshino
- Department of Pharmaceutical Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Masahiro Okada
- Department of Pharmaceutical Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Hiroyasu Onaka
- Department of Biotechnology, Graduate School of Agricultural and Life sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Ikuro Abe
- Department of Pharmaceutical Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
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Abstract
Objective: To report on the surgical treatment of varicose veins by angioscopic valvuloplasty to preserve the long saphenous vein (LSV) and the efficacy of this method compared with conventional stripping and high ligation. Methods: A total of 306 limbs in 187 patients with reflux at the sapheno-femoral junction to below knee level were operated on using intraoperative angioscopy to diagnose valve insufficiency. Angioscopic external valvuloplasty was attempted for the subterminal valves in the LSV by three techniques: total plication of the dilated annulus by running polypropylene sutures (technique 1), plication by autogenous femorofascial sleeve or Dacron-reinforced silicone (technique 2), and plication of the commissure with shortening of the cusps from outside the vein wall (technique 3). Partial stripping or segmental ligation was performed for varicose veins below knee level and the incompetent perforating veins were treated simultaneously by suprafascial ligation. Results: The subterminal valves were classified as follows: valves with elongated and atrophic cusps – type I, 136 (44%); valves with expanded and depressed commissures with cusp changes – type II, 108 (35%); valves that had cusps with other deformities – type III, 38 (13%); and absence of valves between the saphenofemoral junction and mid-thigh level, 24 limbs (8%). Valvuloplasty of the LSV was successfully performed in 62 limbs (20%). There were two cases with occlusion of the LSV (3%) and four with recurrence of varicose veins (6%) at 2–89 (mean 55, SD 21) months follow-up. Conclusions: Angioscopic external valvuloplasty is effective in the treatment of varicose veins to preserve the LSV. Further data are needed for complete evaluation of this procedure.
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Affiliation(s)
- H. Satokawa
- Department of Cardiovascular Surgery, Fukushima Medical College, Fukushima, Japan
| | - S. Hoshino
- Department of Cardiovascular Surgery, Fukushima Medical College, Fukushima, Japan
| | - T. Igari
- Department of Cardiovascular Surgery, Fukushima Medical College, Fukushima, Japan
| | - S. Takase
- Department of Cardiovascular Surgery, Fukushima Medical College, Fukushima, Japan
| | - T. Ogawa
- Department of Cardiovascular Surgery, Fukushima Medical College, Fukushima, Japan
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Satokawa H, Hoshino S, Igari T, Iwaya F, Midorikawa H. The Appearance of Cytokines and Adhesion Molecules in Saphenous Vein Valves in Chronic Venous Insufficiency. Phlebology 2016. [DOI: 10.1177/026835550201600305] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Objective: To evaluate the difference between competent valves and incompetent valves with regards to the development of expression of cytokines and adhesion molecules in primary varicose veins. Methods: Specimens were obtained from 13 patients with primary varicose veins during surgery. Valves were classified according to the angioscopic findings: 8 competent and 17 incompetent valves; type I (7 valves with elongated cusps) and type II (10 valves with expansion of commissures). The mRNA levels of interleukin-1β (IL-1β), interleukin-6 (IL-6), interleukin-8 (IL-8), tumour necrosis factor-α (TNF-α), transforming growth factor-β (TGF-β), intercellular adhesion molecule-1 (ICAM-1), vascular cell adhesion molecule-1 (VCAM-1) and endothelial leucocyte adhesion molecule-1 (ELAM-1) were measured by polymerase chain reaction (PCR) amplification of cDNA reverse-transcribed from RNAs. Results: In all cases there were few appearances of IL-6, IL-8 and TNF-α at the valve cusps. TGF-β and VCAM-1 levels were highly elevated in the cusps of incompetent valves compared with competent valves ( p<0.05). At the venous wall IL-6 and IL-8 occurred more frequently in incompetent valves than in competent valves ( p<0.05). Conclusion: This study suggests that inflammatory cytokines and adhesions molecules, especially TGF-β, IL-6, IL-8 and VCAM-1, may be related to the occurrence of valve insufficiency.
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Affiliation(s)
- H. Satokawa
- Department of Cardiovascular Surgery, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - S. Hoshino
- Department of Cardiovascular Surgery, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - T. Igari
- Department of Cardiovascular Surgery, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - F. Iwaya
- Department of Cardiovascular Surgery, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - H. Midorikawa
- Department of Cardiovascular Surgery, Fukushima Medical University School of Medicine, Fukushima, Japan
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Zhang L, Hoshino S, Awakawa T, Wakimoto T, Abe I. Structural Diversification of Lyngbyatoxin A by Host-Dependent Heterologous Expression of thetleABCBiosynthetic Gene Cluster. Chembiochem 2016; 17:1407-11. [DOI: 10.1002/cbic.201600229] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Indexed: 11/06/2022]
Affiliation(s)
- Lihan Zhang
- Graduate School of Pharmaceutical Sciences; The University of Tokyo; 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
| | - Shotaro Hoshino
- Graduate School of Pharmaceutical Sciences; The University of Tokyo; 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
| | - Takayoshi Awakawa
- Graduate School of Pharmaceutical Sciences; The University of Tokyo; 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
| | - Toshiyuki Wakimoto
- Graduate School of Pharmaceutical Sciences; The University of Tokyo; 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
- Graduate School of Pharmaceutical Sciences; Hokkaido University; Kita 12 Nishi 6 Kita-ku Sapporo 060-0812 Japan
| | - Ikuro Abe
- Graduate School of Pharmaceutical Sciences; The University of Tokyo; 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
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38
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Hoshino S, Ishiwata T, Ueda R. Optimal patrolling methodology of mobile robot for unknown visitors. Adv Robot 2016. [DOI: 10.1080/01691864.2016.1192064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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39
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Mori T, Zhang L, Awakawa T, Hoshino S, Okada M, Morita H, Abe I. Manipulation of prenylation reactions by structure-based engineering of bacterial indolactam prenyltransferases. Nat Commun 2016; 7:10849. [PMID: 26952246 PMCID: PMC4786772 DOI: 10.1038/ncomms10849] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Accepted: 01/26/2016] [Indexed: 11/27/2022] Open
Abstract
Prenylation reactions play crucial roles in controlling the activities of biomolecules. Bacterial prenyltransferases, TleC from Streptomyces blastmyceticus and MpnD from Marinactinospora thermotolerans, catalyse the ‘reverse' prenylation of (−)-indolactam V at the C-7 position of the indole ring with geranyl pyrophosphate or dimethylallyl pyrophosphate, to produce lyngbyatoxin or pendolmycin, respectively. Using in vitro analyses, here we show that both TleC and MpnD exhibit relaxed substrate specificities and accept various chain lengths (C5–C25) of the prenyl donors. Comparisons of the crystal structures and their ternary complexes with (−)-indolactam V and dimethylallyl S-thiophosphate revealed the intimate structural details of the enzyme-catalysed ‘reverse' prenylation reactions and identified the active-site residues governing the selection of the substrates. Furthermore, structure-based enzyme engineering successfully altered the preference for the prenyl chain length of the substrates, as well as the regio- and stereo-selectivities of the prenylation reactions, to produce a series of unnatural novel indolactams. Regioselective prenylation of small aromatic natural molecules is crucial for their biological activity. Here, the authors present the biochemical and structural characterisation of two prenyltransferases and a structure-based engineering strategy to modulate their substrate specificity.
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Affiliation(s)
- Takahiro Mori
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Lihan Zhang
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Takayoshi Awakawa
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Shotaro Hoshino
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Masahiro Okada
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Hiroyuki Morita
- Department of Medicinal Resources, Institute of Natural Medicine, University of Toyama, 2630-Sugitani, Toyama 930-0194, Japan
| | - Ikuro Abe
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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Hoshino S, Okada M, Wakimoto T, Zhang H, Hayashi F, Onaka H, Abe I. Niizalactams A-C, Multicyclic Macrolactams Isolated from Combined Culture of Streptomyces with Mycolic Acid-Containing Bacterium. J Nat Prod 2015; 78:3011-3017. [PMID: 26624939 DOI: 10.1021/acs.jnatprod.5b00804] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A terrestrial bacterium, Streptomyces sp. NZ-6, produced niizalactams A-C (1-3), unprecedented di- and tricyclic macrolactams, by coculturing with the mycolic acid-containing bacterium Tsukamurella pulmonis TP-B0596. Their complete structures, including absolute configurations, were elucidated on the basis of spectroscopic data and chemical derivatization. Their unique skeletons are proposed to be biosynthesized from a common 26-membered macrolactam intermediate by SN2 cyclization or an intramolecular Diels-Alder reaction.
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Affiliation(s)
- Shotaro Hoshino
- Graduate School of Pharmaceutical Sciences, The University of Tokyo , Bunkyo-ku, Tokyo 113-0033, Japan
| | - Masahiro Okada
- Graduate School of Pharmaceutical Sciences, The University of Tokyo , Bunkyo-ku, Tokyo 113-0033, Japan
| | - Toshiyuki Wakimoto
- Graduate School of Pharmaceutical Sciences, The University of Tokyo , Bunkyo-ku, Tokyo 113-0033, Japan
| | - Huiping Zhang
- RIKEN Center for Life Science Technologies , 1-7-22, Suehiro-cho, Tsurumi-ku, Yokohama 230-0045, Japan
| | - Fumiaki Hayashi
- RIKEN Center for Life Science Technologies , 1-7-22, Suehiro-cho, Tsurumi-ku, Yokohama 230-0045, Japan
| | - Hiroyasu Onaka
- Graduate School of Agricultural and Life Sciences, The University of Tokyo , Bunkyo-ku, Tokyo 113-8657, Japan
| | - Ikuro Abe
- Graduate School of Pharmaceutical Sciences, The University of Tokyo , Bunkyo-ku, Tokyo 113-0033, Japan
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Hoshino S, Wakimoto T, Zhang H, Hayashi F, Okada M, Abe I. Dietziamides, novel tetramic acid dimers from Dietzia timorensis MZ-3 with antioxidative activity. Bioorg Med Chem Lett 2015. [DOI: 10.1016/j.bmcl.2015.07.035] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Mori T, Hoshino S, Sahashi S, Wakimoto T, Matsui T, Morita H, Abe I. Structural Basis for β-Carboline Alkaloid Production by the Microbial Homodimeric Enzyme McbB. ACTA ACUST UNITED AC 2015; 22:898-906. [DOI: 10.1016/j.chembiol.2015.06.006] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Revised: 05/19/2015] [Accepted: 06/02/2015] [Indexed: 11/30/2022]
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Hoshino S, Maki K. Safe and efficient motion planning of multiple mobile robots based on artificial potential for human behavior and robot congestion. Adv Robot 2015. [DOI: 10.1080/01691864.2015.1033461] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Sato H, Onozuka M, Hagiya A, Hoshino S, Narita I, Uchiumi T. Characterization of anti-P monoclonal antibodies directed against the ribosomal protein-RNA complex antigen and produced using Murphy Roths large autoimmune-prone mice. Clin Exp Immunol 2015; 179:236-44. [PMID: 25255895 DOI: 10.1111/cei.12460] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/23/2014] [Indexed: 11/30/2022] Open
Abstract
Autoantibodies, including anti-ribosomal P proteins (anti-P), are thought to be produced by an antigen-driven immune response in systemic lupus erythematosus (SLE). To test this hypothesis, we reconstituted the ribosomal antigenic complex in vitro using human P0, phosphorylated P1 and P2 and a 28S rRNA fragment covering the P0 binding site, and immunized Murphy Roths large (MRL)/lrp lupus mice with this complex without any added adjuvant to generate anti-P antibodies. Using hybridoma technology, we subsequently obtained 34 clones, each producing an anti-P monoclonal antibody (mAb) that recognized the conserved C-terminal tail sequence common to all three P proteins. We also obtained two P0-specific monoclonal antibodies, but no antibody specific to P1, P2 or rRNA fragment. Two types of mAbs were found among these anti-P antibodies: one type (e.g. 9D5) reacted more strongly with the phosphorylated P1 and P2 than that with their non-phosphorylated forms, whereas the other type (e.g. 4H11) reacted equally with both phosphorylated and non-phosphorylated forms of P1/P2. Both 9D5 and 4H11 inhibited the ribosome/eukaryotic elongation factor-2 (eEF-2)-coupled guanosine triphosphate (GTP)ase activity. However, preincubation with a synthetic peptide corresponding to the C-terminal sequence common to all three P proteins, but not the peptide that lacked the last three C-terminal amino acids, mostly prevented the mAb-induced inhibition of GTPase activity. Thus, at least two types of anti-P were produced preferentially following the immunization of MRL mice with the reconstituted antigenic complex. Presence of multiple copies of the C-termini, particularly that of the last three C-terminal amino acid residues, in the antigenic complex appears to contribute to the immunogenic stimulus.
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Affiliation(s)
- H Sato
- Division of Clinical Nephrology and Rheumatology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
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Hoshino S, Wakimoto T, Onaka H, Abe I. Chojalactones A–C, Cytotoxic Butanolides Isolated from Streptomyces sp. Cultivated with Mycolic Acid Containing Bacterium. Org Lett 2015; 17:1501-4. [DOI: 10.1021/acs.orglett.5b00385] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Shotaro Hoshino
- Graduate
School of Pharmaceutical Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Toshiyuki Wakimoto
- Graduate
School of Pharmaceutical Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Hiroyasu Onaka
- Graduate
School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku,
Tokyo 113-8657, Japan
| | - Ikuro Abe
- Graduate
School of Pharmaceutical Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
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Kuribayashi S, Iwakiri K, Kawada A, Kawami N, Hoshino S, Takenouchi N, Hosaka H, Shimoyama Y, Kawamura O, Yamada M, Kusano M. Variant parameter values-as defined by the Chicago Criteria-produced by ManoScan and a new system with Unisensor catheter. Neurogastroenterol Motil 2015; 27:188-94. [PMID: 25271562 DOI: 10.1111/nmo.12446] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2014] [Accepted: 08/26/2014] [Indexed: 02/08/2023]
Abstract
BACKGROUND Recently reported normal values for esophageal motility obtained by high-resolution manometry (HRM) using a system with a Unisensor catheter were significantly different from those obtained by the ManoScan(®) , which could result in a wrong diagnosis. To clarify whether these differences were due to system or subject differences, we compared the manometric parameter values between ManoScan and a new system with a Unisensor catheter (Starlet) in the same subjects. METHODS A total of 103 volunteers without any symptoms related to esophageal motility disorders were recruited. Esophageal HRM was performed using both the ManoScan and the Starlet in all subjects. Data from the ManoScan were analyzed using ManoView, and data from the Starlet were analyzed by a program with e-sleeve function. Integrated relaxation pressure, distal contractile integral, contractile front velocity (CFV), intrabolus pressure, and distal latency were calculated by both analyzing programs, and the values of these parameters were compared between the two systems by a signed rank test. KEY RESULTS Data from a total of 97 participants were analyzed. The values of all parameters, except CFV, measured by the Starlet were significantly higher than those obtained by the ManoScan (p < 0.01). CONCLUSIONS & INFERENCES Both systems can measure esophageal motility appropriately; nevertheless, we confirmed that the two systems showed different values of the parameters defined by the Chicago criteria. These differences should be recognized to evaluate esophageal motility precisely.
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Affiliation(s)
- S Kuribayashi
- Department of Gastroenterology, Gunma University Hospital, Gunma, Japan; Department of Gastroenterology and Hepatology, National Hospital Organization Numata National Hospital, Gunma, Japan
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Affiliation(s)
- Y Hoshino
- Saiseikai Fukuoka General Hospital, Fukuoka, Japan
| | - S Hoshino
- Fukushima Diichi Hospital, Fukushima, Japan
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Hoshino S, Zhang L, Awakawa T, Wakimoto T, Onaka H, Abe I. Arcyriaflavin E, a new cytotoxic indolocarbazole alkaloid isolated by combined-culture of mycolic acid-containing bacteria and Streptomyces cinnamoneus NBRC 13823. J Antibiot (Tokyo) 2014; 68:342-4. [DOI: 10.1038/ja.2014.147] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Revised: 08/23/2014] [Accepted: 09/25/2014] [Indexed: 11/09/2022]
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Yoshida Y, Aisu N, Tanimura S, Hoshino S, Ogata K, Uchiyama M, Hara S, Mogi A, Takamatsu Y, Hirata K, Tamura K, Mishima H, Yamashita Y. Chemotherapy for Dihydropyrimidine Dehydrogenase-Deficient Patient. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu358.39] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Awakawa T, Zhang L, Wakimoto T, Hoshino S, Mori T, Ito T, Ishikawa J, Tanner ME, Abe I. A Methyltransferase Initiates Terpene Cyclization in Teleocidin B Biosynthesis. J Am Chem Soc 2014; 136:9910-3. [DOI: 10.1021/ja505224r] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Takayoshi Awakawa
- Graduate
School of Pharmaceutical Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Lihan Zhang
- Graduate
School of Pharmaceutical Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Toshiyuki Wakimoto
- Graduate
School of Pharmaceutical Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Shotaro Hoshino
- Graduate
School of Pharmaceutical Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Takahiro Mori
- Graduate
School of Pharmaceutical Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Takuya Ito
- Faculty
of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 770-8514, Japan
| | - Jun Ishikawa
- National Institute of Infectious Diseases, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Martin E. Tanner
- Department
of Chemistry, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada
| | - Ikuro Abe
- Graduate
School of Pharmaceutical Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
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