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Le TM, Njangiru IK, Vincze A, Zupkó I, Balogh GT, Szakonyi Z. Synthesis and medicinal chemical characterisation of antiproliferative O, N-functionalised isopulegol derivatives. RSC Adv 2024; 14:18508-18518. [PMID: 38867736 PMCID: PMC11168086 DOI: 10.1039/d4ra03467h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2024] [Accepted: 06/02/2024] [Indexed: 06/14/2024] Open
Abstract
Benzylation of isopulegol furnished O-benzyl-protected isopulegol, which was transformed into aminodiols via epoxidation followed by ring opening of the corresponding epoxides and subsequent hydrogenolysis. On the other hand, (-)-isopulegol was oxidised to a diol, which was then converted into dibenzyl-protected diol derivatives. The products were then transformed into aminotriols by using a similar method. The antiproliferative activity of aminodiol and aminotriol derivatives was examined. In addition, structure-activity relationships were also explored from the aspects of substituent effects and stereochemistry on the aminodiol and aminotriol systems. The drug-likeness of the compounds was assessed by in silico and experimental physicochemical characterisations, completed by kinetic aqueous solubility and in vitro intestinal-specific parallel artificial membrane permeability assay (PAMPA-GI) measurements.
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Affiliation(s)
- Tam Minh Le
- Institute of Pharmaceutical Chemistry, University of Szeged Eötvös utca 6 H-6720 Szeged Hungary +36 62 545705 +36 62 546809
- HUN-REN-SZTE Stereochemistry, Research Group, University of Szeged Eötvös u. 6 H-6720 Szeged Hungary
| | - Isaac Kinyua Njangiru
- Institute of Pharmacodynamics and Biopharmacy, University of Szeged H-6720 Eötvös utca 6 Szeged Hungary
| | - Anna Vincze
- Department of Pharmaceutical Chemistry, Semmelweis University Hőgyes Endre u. 9 H-1092 Budapest Hungary
| | - István Zupkó
- Institute of Pharmacodynamics and Biopharmacy, University of Szeged H-6720 Eötvös utca 6 Szeged Hungary
| | - György T Balogh
- Department of Pharmaceutical Chemistry, Semmelweis University Hőgyes Endre u. 9 H-1092 Budapest Hungary
| | - Zsolt Szakonyi
- Institute of Pharmaceutical Chemistry, University of Szeged Eötvös utca 6 H-6720 Szeged Hungary +36 62 545705 +36 62 546809
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2
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Igarashi Y. Development of a drug discovery approach from microbes with a special focus on isolation sources and taxonomy. J Antibiot (Tokyo) 2023:10.1038/s41429-023-00625-y. [PMID: 37188757 DOI: 10.1038/s41429-023-00625-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 04/12/2023] [Accepted: 04/21/2023] [Indexed: 05/17/2023]
Abstract
After the successful discoveries of numerous antibiotics from microorganisms, frequent reisolation of known compounds becomes an obstacle in further development of new drugs from natural products. Exploration of biological sources that can provide novel scaffolds is thus an urgent matter in drug lead screening. As an alternative source to the conventionally used soil microorganisms, we selected endophytic actinomycetes, marine actinomycetes, and actinomycetes in tropical areas for investigation and found an array of new bioactive compounds. Furthermore, based on the analysis of the distribution pattern of biosynthetic gene clusters in bacteria together with available genomic data, we speculated that biosynthetic gene clusters for secondary metabolites are specific to each genus. Based on this assumption, we investigated actinomycetal and marine bacterial genera from which no compounds have been reported, which led to the discovery of a variety of skeletally novel bioactive compounds. These findings suggest that consideration of environmental factor and taxonomic position is critically effective in the selection of potential strains producing structurally unique compounds.
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Affiliation(s)
- Yasuhiro Igarashi
- Biotechnology Research Center and Department of Biotechnology, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama, 939-0398, Japan.
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3
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Matsushima Y, Ogawa Y, Nishi K, Nakata K. Concise synthesis of amino acid component of amicoumacins via dihydrooxazine formation through intramolecular conjugate addition. Biosci Biotechnol Biochem 2023; 87:131-137. [PMID: 36416802 DOI: 10.1093/bbb/zbac182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Accepted: 11/02/2022] [Indexed: 11/24/2022]
Abstract
Amicoumacins are a family of antibiotics with a variety of important bioactivities. A concise and efficient method was developed for synthesizing the amino acid component of amicoumacins via the corresponding dihydrooxazine intermediate. The dihydrooxazine ring was formed with complete stereoselectivity through an intramolecular conjugate addition of a δ-trichloroacetimidoyloxy-α,β-unsaturated ester, which was obtained from a known 4,6-O-p-methoxybenzylidene-protected d-glucose. The synthesis developed in this study can be used to synthesize the building blocks of amicoumacins and can likely be adapted for the synthesis of other types of molecules possessing dihydrooxazine rings or amino alcohol moieties.
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Affiliation(s)
- Yoshitaka Matsushima
- Department of Agricultural Chemistry, Tokyo University of Agriculture, 1-1-1 Sakuragaoka, Setagaya-ku, Tokyo, Japan
| | - Yukako Ogawa
- Department of Agricultural Chemistry, Tokyo University of Agriculture, 1-1-1 Sakuragaoka, Setagaya-ku, Tokyo, Japan
| | - Katsuya Nishi
- Department of Agricultural Chemistry, Tokyo University of Agriculture, 1-1-1 Sakuragaoka, Setagaya-ku, Tokyo, Japan
| | - Kyosuke Nakata
- Department of Agricultural Chemistry, Tokyo University of Agriculture, 1-1-1 Sakuragaoka, Setagaya-ku, Tokyo, Japan
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4
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Iqbal S, Begum F, Rabaan AA, Aljeldah M, Al Shammari BR, Alawfi A, Alshengeti A, Sulaiman T, Khan A. Classification and Multifaceted Potential of Secondary Metabolites Produced by Bacillus subtilis Group: A Comprehensive Review. Molecules 2023; 28:molecules28030927. [PMID: 36770594 PMCID: PMC9919246 DOI: 10.3390/molecules28030927] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 12/31/2022] [Accepted: 01/04/2023] [Indexed: 01/19/2023] Open
Abstract
Despite their remarkable biosynthetic potential, Bacillus subtilis have been widely overlooked. However, their capability to withstand harsh conditions (extreme temperature, Ultraviolet (UV) and γ-radiation, and dehydration) and the promiscuous metabolites they synthesize have created increased commercial interest in them as a therapeutic agent, a food preservative, and a plant-pathogen control agent. Nevertheless, the commercial-scale availability of these metabolites is constrained due to challenges in their accessibility via synthesis and low fermentation yields. In the context of this rising in interest, we comprehensively visualized the antimicrobial peptides produced by B. subtilis and highlighted their prospective applications in various industries. Moreover, we proposed and classified these metabolites produced by the B. subtilis group based on their biosynthetic pathways and chemical structures. The biosynthetic pathway, bioactivity, and chemical structure are discussed in detail for each class. We believe that this review will spark a renewed interest in the often disregarded B. subtilis and its remarkable biosynthetic capabilities.
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Affiliation(s)
- Sajid Iqbal
- Atta-ur-Rahman School of Applied Biosciences, National University of Sciences and Technology (NUST), Islamabad 44000, Pakistan
- Correspondence: or
| | - Farida Begum
- Department of Biochemistry, Abdul Wali Khan University Mardan (AWKUM), Mardan 23200, Pakistan
| | - Ali A. Rabaan
- Molecular Diagnostic Laboratory, Johns Hopkins Aramco Healthcare, Dhahran 31311, Saudi Arabia
- College of Medicine, Alfaisal University, Riyadh 11533, Saudi Arabia
- Department of Public Health and Nutrition, The University of Haripur, Haripur 22610, Pakistan
| | - Mohammed Aljeldah
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, University of Hafr Al Batin, Hafr Al Batin 39831, Saudi Arabia
| | - Basim R. Al Shammari
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, University of Hafr Al Batin, Hafr Al Batin 39831, Saudi Arabia
| | - Abdulsalam Alawfi
- Department of Pediatrics, College of Medicine, Taibah University, Al-Madinah 41491, Saudi Arabia
| | - Amer Alshengeti
- Department of Pediatrics, College of Medicine, Taibah University, Al-Madinah 41491, Saudi Arabia
- Department of Infection Prevention and Control, Prince Mohammad Bin Abdulaziz Hospital, National Guard Health Affairs, Al-Madinah 41491, Saudi Arabia
| | - Tarek Sulaiman
- Infectious Diseases Section, Medical Specialties Department, King Fahad Medical City, Riyadh 12231, Saudi Arabia
| | - Alam Khan
- Department of Life Sciences, Abasyn University Islamabad Campus, Islamabad 44000, Pakistan
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5
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Behera S, Behera A, Mekap SK, Behera CC, Kadam A, Mohanty PK. Periplaneta americana L . a potential source of traditional medicine: chemometric analysis, in vitro and in silico study. J Biomol Struct Dyn 2022; 40:9931-9947. [PMID: 34151747 DOI: 10.1080/07391102.2021.1938681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
'Mayurbhanj is the ethnic dominant tribal population district in Odisha, India. The triabl's of Mayurbhanj depends on traditional medicines since time immemorial for health-related issues. Due to the imperative ethnic claim of traditional healers, the financial stringency of the patient community and the necessity to produce a better therapeutic effect has led to investigate ethno zoological sources and to find out the biochemical moiety responsible for the healing process. Considering the ethnic communities' acceptability of the zoological source as traditional medicine, the current evidence-based research study is conducted to investigate the biochemical moiety present in Periplaneta americana, responsible for therapeutic activity. The whole powdered Periplaneta americana was extracted using maceration techniques with n-hexane and methanol as solvent. The obtained extracts were subjected to GC-MS analysis to identify the biochemical moiety. To check the potential biological activity, an in-vitro antimicrobial test was carried out in both turbidimetry and a viable count method against E. coli. Moreover, the obtained biochemical molecules were exposed to in silico studies for their binding modes and their affinity using Discovery studio software. The major compounds were found to be hexadecanoic acid, methyl ester, n-hexadecanoic acid, oleic acid, octadecanoic acid along with other minor constituents. The maximum inhibitory activity of n-hexane and methanol extract against S. aureus at a concentration of 400 µg/mL was found to be 89 and 87%, respectively. The binding models of almost all identified compounds confer very good binding affinities with some key and strong non-covalent interactions with various amino acid residues of receptor active site pocket, which predict the compounds to be potent inhibitors of various infectious bacteria. These findings suggested that the hexane extract of P. americana could be exploited as a potential natural source. Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Suchismeeta Behera
- Postgraduate Department of Zoology, Utkal University, Bhubaneswar, India.,State Forensic Science Laboratory, Bhubaneswar, India
| | - Amulyaratna Behera
- School of Pharmacy and Life Sciences, Centurion University of Technology and Management, Bhubaneswar, India
| | - Suman Kumar Mekap
- School of Pharmacy and Life Sciences, Centurion University of Technology and Management, Bhubaneswar, India
| | - Chinmaya Chidananda Behera
- School of Pharmacy and Life Sciences, Centurion University of Technology and Management, Bhubaneswar, India
| | - Atul Kadam
- Department of Pharmaceutics, Shree Santkrupa College of Pharmacy, Ghogaon, India
| | - Prafulla K Mohanty
- Postgraduate Department of Zoology, Utkal University, Bhubaneswar, India
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6
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Evaluation of the Marine Bacterial Population in the Great Bitter Lake, Egypt, as a Source of Antimicrobial Secondary Metabolites. FERMENTATION-BASEL 2022. [DOI: 10.3390/fermentation8070309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The ecological uniqueness of the Great Bitter Lake ecosystem makes its bacterial population interesting for investigation. Here, we present the first trial to evaluate the biosynthetic capacity of the bacterial population at the lake as a source of novel antimicrobials. We collected different samples from various locations throughout the lake including the oxic sediment, anoxic sediment, shore water, and off-shore water. We modified a molecular approach to compare and choose the samples with the highest bacterial biosynthetic capacity by quantifying the polyketide synthase gene clusters in their total community DNA. Furthermore, we screened the bacterial isolates recovered from these samples and their metabolic extracts for antimicrobial activity. We tried to tentatively investigate the identity of the active metabolites by PCR screening and LC–MS. The bacterial population in the oxic sediment had the highest biosynthetic capacity compared to other sample types. Four active Bacillus isolates were identified. The isolated Bacillus species were expected to produce numerous probable bioactive metabolites encoded by biosynthetic gene clusters related to the polyketide synthases (either individual or hybrid with non-ribosomal peptide synthetase), such as Bacillomycin D, Iturin A, Bacilosarcin B, Bacillcoumacin G and Macrolactin (N and G). These results suggest that the under-explored bacterial community of the Great Bitter Lake has a prospective biosynthetic capacity and can be a promising source for novel antibiotics.
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7
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Chakraborty K, Kizhakkekalam VK, Joy M, Chakraborty RD. Novel amylomacins from seaweed-associated Bacillus amyloliquefaciens as prospective antimicrobial leads attenuating resistant bacteria. World J Microbiol Biotechnol 2021; 37:200. [PMID: 34664128 DOI: 10.1007/s11274-021-03161-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 10/01/2021] [Indexed: 11/25/2022]
Abstract
The rise in antibiotic-resistant bacterial strains prompting nosocomial infections drives the search for new bioactive substances of promising antibacterial properties. The surfaces of seaweeds are rich in heterotrophic bacteria with prospective antimicrobial substances. This study aimed to isolate antibacterial leads from a seaweed-associated bacterium. Heterotrophic Bacillus amyloliquefaciens MTCC 12716 associated with the seaweed Hypnea valentiae, was isolated and screened for antimicrobial properties against drug-resistant pathogens. The bacterial crude extract was purified and three novel amicoumacin-class of isocoumarin analogues, 11'-butyl acetate amicoumacin C (amylomacin A), 4'-hydroxy-11'-methoxyethyl carboxylate amicoumacin C (amylomacin B) and 11'-butyl amicoumacin C (amylomacin C) were isolated to homogeneity. The studied amylomacins possessed potential activities against Pseudomonas aeruginosa, vancomycin-resistant Enterococcus faecalis, Klebsiella pneumoniae, methicillin-resistant Staphylococcus aureus, and Shigella flexneri with a range of minimum inhibitory concentration values from 0.78 to 3.12 µg/mL, although standard antibiotics ampicillin and chloramphenicol were active at 6.25-25 µg/mL. Noticeably, the amylomacin compound encompassing 4'-hydroxy-11'-methoxyethyl carboxylate amicoumacin C functionality (amylomacin B), displayed considerably greater antagonistic activities against methicillin-resistant S. aureus, vancomycin-resistant E. faecalis, Vibrio parahaemolyticus, Escherichia coli, and K. pneumoniae (minimum inhibitory concentration 0.78 μg/mL) compared to the positive controls and other amylomacin analogues. Antimicrobial properties of the amylomacins, coupled with the presence of polyketide synthase-I/non-ribosomal peptide synthetase hybrid gene attributed the bacterium as a promising source of antimicrobial compounds with pharmaceutical and biotechnological applications.
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Affiliation(s)
- Kajal Chakraborty
- Marine Bioprospecting Section of Marine Biotechnology Division, Central Marine Fisheries Research Institute, Ernakulam North, P.B. No. 1603, Cochin, Kerala, 682018, India.
| | - Vinaya Kizhakkepatt Kizhakkekalam
- Marine Bioprospecting Section of Marine Biotechnology Division, Central Marine Fisheries Research Institute, Ernakulam North, P.B. No. 1603, Cochin, Kerala, 682018, India
- Faculty of Marine Sciences, Lakeside Campus, Cochin University of Science and Technology, Cochin, Kerala State, India
| | - Minju Joy
- Marine Bioprospecting Section of Marine Biotechnology Division, Central Marine Fisheries Research Institute, Ernakulam North, P.B. No. 1603, Cochin, Kerala, 682018, India
| | - Rekha Devi Chakraborty
- Crustacean Fisheries Division, Central Marine Fisheries Research Institute, Ernakulam North, P.B. No. 1603, Cochin, India
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8
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Yang J, Zhu Q, Xu F, Yang M, Du H, Bian X, Lu Z, Lu Y, Lu F. Genome Mining, Heterologous Expression, Antibacterial and Antioxidant Activities of Lipoamides and Amicoumacins from Compost-Associated Bacillus subtilis fmb60. Molecules 2021; 26:molecules26071892. [PMID: 33810551 PMCID: PMC8036425 DOI: 10.3390/molecules26071892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 03/18/2021] [Accepted: 03/23/2021] [Indexed: 11/25/2022] Open
Abstract
Bacillus subtilis fmb60, which has broad-spectrum antimicrobial activities, was isolated from plant straw compost. A hybrid NRPS/PKS cluster was screened from the genome. Sixteen secondary metabolites produced by the gene cluster were isolated and identified using LC-HRMS and NMR. Three lipoamides D–F (1–3) and two amicoumacin derivatives, amicoumacins D, E (4, 5), were identified, and are reported here for the first time. Lipoamides D–F exhibited strong antibacterial activities against harmful foodborne bacteria, with the MIC ranging from 6.25 to 25 µg/mL. Amicoumacin E scavenged 38.8% of ABTS+ radicals at 1 mg/mL. Direct cloning and heterologous expression of the NRPS/PKS and ace gene cluster identified its importance for the biosynthesis of amicoumacins. This study demonstrated that there is a high potential for biocontrol utilization of B. subtilis fmb60, and genome mining for clusters of secondary metabolites of B. subtilis fmb60 has revealed a greater biosynthetic potential for the production of novel natural products than previously anticipated.
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Affiliation(s)
- Jie Yang
- Jiangsu Key Laboratory of Marine Bioresources and Environment, Jiangsu Ocean University, Lianyungang 222005, China; (J.Y.); (Q.Z.); (F.X.)
- Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang 222005, China
- Jiangsu Marine Resources Development Research Institute, Lianyungang 222000, China
| | - Qingzheng Zhu
- Jiangsu Key Laboratory of Marine Bioresources and Environment, Jiangsu Ocean University, Lianyungang 222005, China; (J.Y.); (Q.Z.); (F.X.)
| | - Feng Xu
- Jiangsu Key Laboratory of Marine Bioresources and Environment, Jiangsu Ocean University, Lianyungang 222005, China; (J.Y.); (Q.Z.); (F.X.)
| | - Ming Yang
- Helmholtz Institute of Biotechnology, State Key Laboratory of Microbial Technology, Shandong University, Qingdao 266237, China; (M.Y.); (X.B.)
| | - Hechao Du
- College of Food Science and Technology, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, China; (H.D.); (Z.L.)
| | - Xiaoying Bian
- Helmholtz Institute of Biotechnology, State Key Laboratory of Microbial Technology, Shandong University, Qingdao 266237, China; (M.Y.); (X.B.)
| | - Zhaoxin Lu
- College of Food Science and Technology, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, China; (H.D.); (Z.L.)
| | - Yingjian Lu
- College of Food Science and Engineering, Nanjing University of Finance and Economics, Nanjing 210003, China
- Correspondence: (Y.L.); (F.L.); Tel./Fax: +86-258-439-5155 (Y.L.); +86-258-439-5963 (F.L.)
| | - Fengxia Lu
- College of Food Science and Technology, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, China; (H.D.); (Z.L.)
- Correspondence: (Y.L.); (F.L.); Tel./Fax: +86-258-439-5155 (Y.L.); +86-258-439-5963 (F.L.)
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Maksimova EM, Vinogradova DS, Osterman IA, Kasatsky PS, Nikonov OS, Milón P, Dontsova OA, Sergiev PV, Paleskava A, Konevega AL. Multifaceted Mechanism of Amicoumacin A Inhibition of Bacterial Translation. Front Microbiol 2021; 12:618857. [PMID: 33643246 PMCID: PMC7907450 DOI: 10.3389/fmicb.2021.618857] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Accepted: 01/19/2021] [Indexed: 01/07/2023] Open
Abstract
Amicoumacin A (Ami) halts bacterial growth by inhibiting the ribosome during translation. The Ami binding site locates in the vicinity of the E-site codon of mRNA. However, Ami does not clash with mRNA, rather stabilizes it, which is relatively unusual and implies a unique way of translation inhibition. In this work, we performed a kinetic and thermodynamic investigation of Ami influence on the main steps of polypeptide synthesis. We show that Ami reduces the rate of the functional canonical 70S initiation complex (IC) formation by 30-fold. Additionally, our results indicate that Ami promotes the formation of erroneous 30S ICs; however, IF3 prevents them from progressing towards translation initiation. During early elongation steps, Ami does not compromise EF-Tu-dependent A-site binding or peptide bond formation. On the other hand, Ami reduces the rate of peptidyl-tRNA movement from the A to the P site and significantly decreases the amount of the ribosomes capable of polypeptide synthesis. Our data indicate that Ami progressively decreases the activity of translating ribosomes that may appear to be the main inhibitory mechanism of Ami. Indeed, the use of EF-G mutants that confer resistance to Ami (G542V, G581A, or ins544V) leads to a complete restoration of the ribosome functionality. It is possible that the changes in translocation induced by EF-G mutants compensate for the activity loss caused by Ami.
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Affiliation(s)
- Elena M Maksimova
- Petersburg Nuclear Physics Institute named by B. P. Konstantinov, NRC "Kurchatov Institute", Gatchina, Russia
| | - Daria S Vinogradova
- Petersburg Nuclear Physics Institute named by B. P. Konstantinov, NRC "Kurchatov Institute", Gatchina, Russia.,NanoTemper Technologies Rus, St. Petersburg, Russia
| | - Ilya A Osterman
- Center of Life Sciences, Skolkovo Institute of Science and Technology, Moscow, Russia.,Department of Chemistry, Lomonosov Moscow State University, Moscow, Russia
| | - Pavel S Kasatsky
- Petersburg Nuclear Physics Institute named by B. P. Konstantinov, NRC "Kurchatov Institute", Gatchina, Russia
| | - Oleg S Nikonov
- Institute of Protein Research, Russian Academy of Sciences, Pushchino, Russia
| | - Pohl Milón
- Centre for Research and Innovation, Faculty of Health Sciences, Universidad Peruana de Ciencias Aplicadas (UPC), Lima, Peru
| | - Olga A Dontsova
- Center of Life Sciences, Skolkovo Institute of Science and Technology, Moscow, Russia.,Department of Chemistry, Lomonosov Moscow State University, Moscow, Russia.,A. N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russia.,Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia
| | - Petr V Sergiev
- Center of Life Sciences, Skolkovo Institute of Science and Technology, Moscow, Russia.,Department of Chemistry, Lomonosov Moscow State University, Moscow, Russia.,A. N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russia.,Institute of Functional Genomics, Lomonosov Moscow State University, Moscow, Russia
| | - Alena Paleskava
- Petersburg Nuclear Physics Institute named by B. P. Konstantinov, NRC "Kurchatov Institute", Gatchina, Russia
| | - Andrey L Konevega
- Petersburg Nuclear Physics Institute named by B. P. Konstantinov, NRC "Kurchatov Institute", Gatchina, Russia.,National Research Centre "Kurchatov Institute", Moscow, Russia
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10
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Wang T, Lu Q, Sun C, Lukianov D, Osterman IA, Sergiev PV, Dontsova OA, Hu X, You X, Liu S, Wu G. Hetiamacin E and F, New Amicoumacin Antibiotics from Bacillus subtilis PJS Using MS/MS-Based Molecular Networking. Molecules 2020; 25:E4446. [PMID: 32992672 PMCID: PMC7583885 DOI: 10.3390/molecules25194446] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 09/24/2020] [Accepted: 09/26/2020] [Indexed: 11/17/2022] Open
Abstract
To combat escalating levels of antibiotic resistance, novel strategies are developed to address the everlasting demand for new antibiotics. This study aimed at investigating amicoumacin antibiotics from the desert-derived Bacillus subtilis PJS by using the modern MS/MS-based molecular networking approach. Two new amicoumacins, namely hetiamacin E (1) and hetiamacin F (2), were finally isolated. The planar structures were determined by analysis of extensive NMR spectroscopic and HR-ESI-MS data, and the absolute configurations were concluded by analysis of the CD spectrum. Hetiamacin E (1) showed strong antibacterial activities against methicillin-sensitive and resistant Staphylococcus epidermidis at 2-4 µg/mL, and methicillin-sensitive and resistant Staphylococcus aureus at 8-16 µg/mL. Hetiamacin F (2) exhibited moderate antibacterial activities against Staphylococcus sp. at 32 µg/mL. Both compounds were inhibitors of protein biosynthesis demonstrated by a double fluorescent protein reporter system.
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Affiliation(s)
- Ting Wang
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China; (T.W.); (Q.L.); (C.S.); (X.H.); (X.Y.)
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Qinpei Lu
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China; (T.W.); (Q.L.); (C.S.); (X.H.); (X.Y.)
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Chenghang Sun
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China; (T.W.); (Q.L.); (C.S.); (X.H.); (X.Y.)
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Dmitrii Lukianov
- Center of Life Sciences, Skolkovo Institute of Science and Technology, Moscow 143025, Russia; (D.L.); (I.A.O.); (P.V.S.); (O.A.D.)
| | - Ilya Andreevich Osterman
- Center of Life Sciences, Skolkovo Institute of Science and Technology, Moscow 143025, Russia; (D.L.); (I.A.O.); (P.V.S.); (O.A.D.)
- Department of Chemistry, Lomonosov Moscow State University, Moscow 119992, Russia
| | - Petr Vladimirovich Sergiev
- Center of Life Sciences, Skolkovo Institute of Science and Technology, Moscow 143025, Russia; (D.L.); (I.A.O.); (P.V.S.); (O.A.D.)
- Department of Chemistry, Lomonosov Moscow State University, Moscow 119992, Russia
| | - Olga Anatolievna Dontsova
- Center of Life Sciences, Skolkovo Institute of Science and Technology, Moscow 143025, Russia; (D.L.); (I.A.O.); (P.V.S.); (O.A.D.)
- Department of Chemistry, Lomonosov Moscow State University, Moscow 119992, Russia
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow 119992, Russia
| | - Xinxin Hu
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China; (T.W.); (Q.L.); (C.S.); (X.H.); (X.Y.)
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Xuefu You
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China; (T.W.); (Q.L.); (C.S.); (X.H.); (X.Y.)
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Shaowei Liu
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China; (T.W.); (Q.L.); (C.S.); (X.H.); (X.Y.)
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Gang Wu
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China; (T.W.); (Q.L.); (C.S.); (X.H.); (X.Y.)
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
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11
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Synthesis and Investigation of Pinane-Based Chiral Tridentate Ligands in the Asymmetric Addition of Diethylzinc to Aldehydes. Catalysts 2020. [DOI: 10.3390/catal10050474] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
A library of pinane-based chiral aminodiols, derived from natural (−)-β-pinene, were prepared and applied as chiral catalysts in the addition of diethylzinc to aldehydes. (−)-β-Pinene was reacted to provide 3-methylenenopinone, followed by a reduction of the carbonyl function to give a key allylic alcohol intermediate. Stereoselective epoxidation of the latter and subsequent ring opening of the resulting oxirane with primary and secondary amines afforded aminodiols. The regioselectivity of the ring closure of the N-substituted secondary aminodiols with formaldehyde was examined and exclusive formation of oxazolidines was observed. Treatment of the allylic alcohol with benzyl bromide provided the corresponding O-benzyl derivative, which was transformed into O-benzyl aminodiols by aminolysis. Ring closure of the N-isopropyl aminodiol derivative with formaldehyde resulted in spirooxazolidine. The obtained potential catalysts were applied in the reaction of both aromatic and aliphatic aldehydes to diethylzinc providing moderate to good enantioselectivities (up to 87% ee). Through the use of molecular modeling at an ab initio level, this phenomenon was interpreted in terms of competing reaction pathways. Molecular modeling at the RHF/LANL2DZ level of theory was successfully applied for interpretation of the stereochemical outcome of the reactions leading to display excellent (R) enantioselectivity in the examined transformation.
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12
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Ortiz A, Castro M, Sansinenea E. 3,4-Dihydroisocoumarins, Interesting Natural Products: Isolation, Organic Syntheses and Biological Activities. Curr Org Synth 2020; 16:112-129. [PMID: 31965925 DOI: 10.2174/1570179415666180924123439] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2018] [Revised: 08/30/2018] [Accepted: 09/16/2018] [Indexed: 02/01/2023]
Abstract
BACKGROUND 3,4-dihydroisocoumarins are an important small group belonging to the class of naturally occurring lactones isolated from different bacterial strains, molds, lichens, and plants. The structures of these natural compounds show various types of substitution in their basic skeleton and this variability influences deeply their biological activities. These lactones are structural subunits of several natural products and serve as useful intermediates in the synthesis of different heterocyclic molecules, which exhibit a wide range of biological activities, such as anti-inflammatory, antiplasmodial, antifungal, antimicrobial, antiangiogenic and antitumoral activities, among others. Their syntheses have attracted attention of many researchers reporting many synthetic strategies to achieve 3,4-dihydroisocoumarins and other related structures. OBJECTIVE In this context, the isolation of these natural compounds from different sources, their syntheses and biological activities are reviewed, adding the most recent advances and related developments. CONCLUSION This review aims to encourage further work on the isolation and synthesis of this class of natural products. It would be beneficial for synthetic as well as the medicinal chemists to design selective, optimized dihydroisocoumarin derivatives as potential drug candidates, since dihydroisocoumarin scaffolds have significant utility in the development of therapeutically relevant and biologically active compounds.
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Affiliation(s)
- Aurelio Ortiz
- Facultad de Ciencias Quimicas, Benemerita Universidad Autonoma de Puebla, Pue. 72570, Mexico. 72570, Mexico
| | - Miriam Castro
- Facultad de Ciencias Quimicas, Benemerita Universidad Autonoma de Puebla, Pue. 72570, Mexico. 72570, Mexico
| | - Estibaliz Sansinenea
- Facultad de Ciencias Quimicas, Benemerita Universidad Autonoma de Puebla, Pue. 72570, Mexico. 72570, Mexico
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13
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Tsukaguchi S, Enomoto M, Towada R, Ogura Y, Kuwahara S. Unified Total Synthesis of Hetiamacins A-D. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901114] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Shogo Tsukaguchi
- Graduate School of Agricultural Science; Tohoku University; 468-1 Aramaki-Aza-Aoba Aoba-ku, Sendai 980-0845 Japan
| | - Masaru Enomoto
- Graduate School of Agricultural Science; Tohoku University; 468-1 Aramaki-Aza-Aoba Aoba-ku, Sendai 980-0845 Japan
| | - Ryo Towada
- Graduate School of Agricultural Science; Tohoku University; 468-1 Aramaki-Aza-Aoba Aoba-ku, Sendai 980-0845 Japan
| | - Yusuke Ogura
- Graduate School of Agricultural Science; Tohoku University; 468-1 Aramaki-Aza-Aoba Aoba-ku, Sendai 980-0845 Japan
| | - Shigefumi Kuwahara
- Graduate School of Agricultural Science; Tohoku University; 468-1 Aramaki-Aza-Aoba Aoba-ku, Sendai 980-0845 Japan
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14
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Wang Z. Advances in the Asymmetric Total Synthesis of Natural Products Using Chiral Secondary Amine Catalyzed Reactions of α,β-Unsaturated Aldehydes. Molecules 2019; 24:E3412. [PMID: 31546876 PMCID: PMC6767148 DOI: 10.3390/molecules24183412] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 09/14/2019] [Accepted: 09/19/2019] [Indexed: 11/16/2022] Open
Abstract
Chirality is one of the most important attributes for its presence in a vast majority of bioactive natural products and pharmaceuticals. Asymmetric organocatalysis methods have emerged as a powerful methodology for the construction of highly enantioenriched structural skeletons of the target molecules. Due to their extensive application of organocatalysis in the total synthesis of bioactive molecules and some of them have been used in the industrial synthesis of drugs have attracted increasing interests from chemists. Among the chiral organocatalysts, chiral secondary amines (MacMillan's catalyst and Jorgensen's catalyst) have been especially considered attractive strategies because of their impressive efficiency. Herein, we outline advances in the asymmetric total synthesis of natural products and relevant drugs by using the strategy of chiral secondary amine catalyzed reactions of α,β-unsaturated aldehydes in the last eighteen years.
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Affiliation(s)
- Zhonglei Wang
- School of Pharmaceutical Sciences, Tsinghua University, Beijing 100084, China.
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China.
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15
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Kaspar F, Neubauer P, Gimpel M. Bioactive Secondary Metabolites from Bacillus subtilis: A Comprehensive Review. JOURNAL OF NATURAL PRODUCTS 2019; 82:2038-2053. [PMID: 31287310 DOI: 10.1021/acs.jnatprod.9b00110] [Citation(s) in RCA: 116] [Impact Index Per Article: 23.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Bacillus subtilis is widely underappreciated for its inherent biosynthetic potential. This report comprehensively summarizes the known bioactive secondary metabolites from B. subtilis and highlights potential applications as plant pathogen control agents, drugs, and biosurfactants. B. subtilis is well known for the production of cyclic lipopeptides exhibiting strong surfactant and antimicrobial activities, such as surfactins, iturins, and fengycins. Several polyketide-derived macrolides as well as nonribosomal peptides, dihydroisocoumarins, and linear lipopeptides with antimicrobial properties have been reported, demonstrating the biosynthetic arsenal of this bacterium. Promising efforts toward the application of B. subtilis strains and their natural products in areas of agriculture and medicine are underway. However, industrial-scale availability of these compounds is currently limited by low fermentation yields and challenging accessibility via synthesis, necessitating the development of genetically engineered strains and optimized cultivation processes. We hope that this review will attract renewed interest in this often-overlooked bacterium and its impressive biosynthetic skill set.
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Affiliation(s)
- Felix Kaspar
- Institute of Biotechnology , Technical University of Berlin , Ackerstraße 76 , 13355 Berlin , Germany
| | - Peter Neubauer
- Institute of Biotechnology , Technical University of Berlin , Ackerstraße 76 , 13355 Berlin , Germany
| | - Matthias Gimpel
- Institute of Biotechnology , Technical University of Berlin , Ackerstraße 76 , 13355 Berlin , Germany
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16
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Ortiz A, Sansinenea E. Chemical Compounds Produced by Bacillus sp. Factories and Their Role in Nature. Mini Rev Med Chem 2019; 19:373-380. [DOI: 10.2174/1389557518666180829113612] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Revised: 07/05/2018] [Accepted: 08/27/2018] [Indexed: 11/22/2022]
Abstract
Microorganisms are able to produce hundreds of unique chemical structures that can be effectively used by the human beings on their own benefit using the products in the chemical industry. Bacteria belonging to Bacillus genera are very good chemical factories capable to synthesize different compounds with a wide variety of activities. In this review, we try to review the compounds with their respective biological activities produced by different species of Bacillus.
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Affiliation(s)
- Aurelio Ortiz
- Facultad de Ciencias Quimicas, Benemerita Universidad Autonoma de Puebla, C.P. 72570, Puebla, Pue, Mexico
| | - Estibaliz Sansinenea
- Facultad de Ciencias Quimicas, Benemerita Universidad Autonoma de Puebla, C.P. 72570, Puebla, Pue, Mexico
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17
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Reyes-Rodríguez GJ, Rezayee NM, Vidal-Albalat A, Jørgensen KA. Prevalence of Diarylprolinol Silyl Ethers as Catalysts in Total Synthesis and Patents. Chem Rev 2019; 119:4221-4260. [DOI: 10.1021/acs.chemrev.8b00583] [Citation(s) in RCA: 77] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
| | - Nomaan M. Rezayee
- Department of Chemistry, Aarhus University, DK-8000 Aarhus C, Denmark
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18
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Kattela S, de Lucca EC, Correia CRD. Enantioselective Synthesis of Phthalides and Isochromanones via Heck-Matsuda Arylation of Dihydrofurans. Chemistry 2018; 24:17691-17696. [PMID: 30290051 DOI: 10.1002/chem.201804958] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Indexed: 11/09/2022]
Abstract
In this communication, the enantioselective synthesis of phthalides and isochromanones is described through a new palladium-catalyzed Heck-Matsuda arylation/NaBH4 -reduction/lactonization sequence of 2,3- and 2,5-dihydrofurans in good overall yields and excellent enantioselectivities (up to 98:2 er). This expeditious synthesis of chiral Heck lactol intermediates allowed the diversification of the strategy to obtain medicinally relevant chiral lactones, amines, and olefins. The natural product 3-butylphthalide was obtained in three steps with an overall yield of 33 % yield in 98:2 er.
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Affiliation(s)
- Shivashankar Kattela
- Institute of Chemistry, University of Campinas, Josué de Castro, 13083-970 Campinas, São Paulo, Brazil
| | - Emilio C de Lucca
- Institute of Chemistry, University of Campinas, Josué de Castro, 13083-970 Campinas, São Paulo, Brazil
| | - Carlos Roque D Correia
- Institute of Chemistry, University of Campinas, Josué de Castro, 13083-970 Campinas, São Paulo, Brazil
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19
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Apoptotic role of marine sponge symbiont Bacillus subtilis NMK17 through the activation of caspase-3 in human breast cancer cell line. Mol Biol Rep 2018; 45:2641-2651. [PMID: 30414102 DOI: 10.1007/s11033-018-4434-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Accepted: 10/10/2018] [Indexed: 12/15/2022]
Abstract
The aim of the present study was to evaluate the diverse potential biological activity of partially purified crude extract (PPCEBS) of marine Bacillus subtilis NMK17 associated with marine sponge Clathria frondifera. Symbionts were isolated from a marine sponge, only the potential strain which exhibited apoptosis was sequenced using 16S rRNA and extract of the active strain was subjected to purification using HPLC. The potential pro-apoptotic role of PPCEBS was investigated in MCF-7 human breast cancer cell line for cytotoxicity by MTT assay, which showed dose-dependent cytotoxicity on 24 h of exposure. The apoptotic findings demonstrated that PPCEBS significantly induces apoptosis, which was characterised by apoptotic morphological changes. Further, an increased expression of the Caspase 3 and Bax whereas decreased Bcl-2 was confirmed by immunofluorescence and western blotting analysis in MCF-7 cell line, which revealed that PPCEBS has potent apoptosis-inducing property. Added to the desirable apoptotic activity, PPCEBS exhibited excellent antibacterial and antioxidant activities too. The pharmacological effect of the marine sponge-associated bacteria from Gulf of Mannar India needs further attention in discovering new bioactive compounds. Our results suggested that the compounds present in the PPCEBS in marine bacterial B. subtilis NMK17 could be candidates for developing an apoptosis-specific drug with minimal toxicity. This study indicated that marine sponge-associated bacteria could be a good source to find the cytotoxic metabolites which would induce apoptosis and cause cancer cell death. Also, this study explores that marine natural products as a potential source of pharmaceuticals.
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20
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Bacillamidins A⁻G from a Marine-Derived Bacillus pumilus. Mar Drugs 2018; 16:md16090326. [PMID: 30208577 PMCID: PMC6164710 DOI: 10.3390/md16090326] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Revised: 09/07/2018] [Accepted: 09/07/2018] [Indexed: 11/17/2022] Open
Abstract
Seven long-chain amides, including five previously undescribed bacillamidins A–E (1–5) and two previously reported synthetic analogs, bacillamidins F (6) and G (7), were isolated from extracts of the marine-derived Bacillus pumilus strain RJA1515. The structures of the new compounds were established by extensive analysis of 1D and 2D nuclear magnetic resonance (NMR) data as well as high resolution mass spectrometry (HRMS), and the absolute configurations of the stereogenic carbons of 1–4 were established by comparison of the calculated and the experimental electronic circular dichroism (ECD) spectra. The cytotoxic and antimicrobial activities of 1–7 were evaluated.
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21
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Hussain H, Green IR. A patent review of two fruitful decades (1997-2016) of Isocoumarin research. Expert Opin Ther Pat 2017. [DOI: 10.1080/13543776.2017.1344220] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Hidayat Hussain
- UoN Chair of Oman’s Medicinal Plants and Marine Natural Products, University of Nizwa, Nizwa, Sultanate of Oman
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California-San Diego, La Jolla, CA 92093-0204, USA
| | - Ivan R Green
- Department of Chemistry and Polymer Science, University of Stellenbosch, Stellenbosch, South Africa
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22
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Niveshika, Verma E, Mishra AK, Singh AK, Singh VK. Structural Elucidation and Molecular Docking of a Novel Antibiotic Compound from Cyanobacterium Nostoc sp. MGL001. Front Microbiol 2016; 7:1899. [PMID: 27965634 PMCID: PMC5126090 DOI: 10.3389/fmicb.2016.01899] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2016] [Accepted: 11/11/2016] [Indexed: 12/02/2022] Open
Abstract
Cyanobacteria are rich source of array of bioactive compounds. The present study reports a novel antibacterial bioactive compound purified from cyanobacterium Nostoc sp. MGL001 using various chromatographic techniques viz. thin layer chromatography (TLC) and high performance liquid chromatography (HPLC). Further characterization was done using electrospray ionization mass spectroscopy (ESIMS) and nuclear magnetic resonance (NMR) and predicted structure of bioactive compound was 9-Ethyliminomethyl-12-(morpholin - 4 - ylmethoxy) -5, 8, 13, 16–tetraaza–hexacene - 2, 3 dicarboxylic acid (EMTAHDCA). Structure of EMTAHDCA clearly indicated that it is a novel compound that was not reported in literature or natural product database. The compound exhibited growth inhibiting effects mainly against the gram negative bacterial strains and produced maximum zone of inhibition at 150 μg/mL concentration. The compound was evaluated through in silico studies for its ability to bind 30S ribosomal fragment (PDB ID: 1YRJ, 1MWL, 1J7T, and 1LC4) and OmpF porin protein (4GCP, 4GCQ, and 4GCS) which are the common targets of various antibiotic drugs. Comparative molecular docking study revealed that EMTAHDCA has strong binding affinity for these selected targets in comparison to a number of most commonly used antibiotics. The ability of EMTAHDCA to bind the active sites on the proteins and 30S ribosomal fragments where the antibiotic drugs generally bind indicated that it is functionally similar to the commercially available drugs.
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Affiliation(s)
- Niveshika
- Laboratory of Microbial Genetics, Department of Botany, Banaras Hindu University Varanasi, India
| | - Ekta Verma
- Laboratory of Microbial Genetics, Department of Botany, Banaras Hindu University Varanasi, India
| | - Arun K Mishra
- Laboratory of Microbial Genetics, Department of Botany, Banaras Hindu University Varanasi, India
| | - Angad K Singh
- Department of Chemistry, Banaras Hindu University Varanasi, India
| | - Vinay K Singh
- Centre for Bioinformatics, School of Biotechnology, Banaras Hindu University Varanasi, India
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23
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Damxungmacin A and B, Two New Amicoumacins with Rare Heterocyclic Cores Isolated from Bacillus subtilis XZ-7. Molecules 2016; 21:molecules21111601. [PMID: 27886094 PMCID: PMC6274204 DOI: 10.3390/molecules21111601] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Revised: 11/13/2016] [Accepted: 11/20/2016] [Indexed: 11/17/2022] Open
Abstract
Two new amicoumacins, named Damxungmacin A (1) and B (2), were isolated from the culture broth of a soil-derived bacterium Bacillus subtilis XZ-7. Their chemical structures were elucidated by spectroscopic studies (UV, IR, NMR and HR-ESI-MS). Compound 1 possessed a 1,4-diazabicyclo[2.2.1]heptane-2-one ring system in its structure, which was reported for the first time, while 2 had a 1-acetylmorpholine-3-one moiety, which was naturally rare. Compound 1 exhibited moderate to weak cytotoxic activities against three human tumor cell lines (A549, HCT116 and HepG2) with IC50 values of 13.33, 14.34 and 13.64 μM, respectively. Meanwhile, compound 1 showed weak antibacterial activities against some strains of Staphylococcus epidermidis, while compound 2 at 16 μg/mL did not show antibacterial activity.
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24
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25
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Draft Genome Sequence of Marine-Derived Bacillus subtilis TP-B0611, a Producer of Bacilosarcins and Amicoumacins. GENOME ANNOUNCEMENTS 2016; 4:4/5/e01134-16. [PMID: 27738042 PMCID: PMC5064115 DOI: 10.1128/genomea.01134-16] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Here, we report the draft genome sequence of Bacillus subtilis TP-B0611, which produces the isocoumarin-type compounds bacilosarcin and amicoumacin. The genome encodes three nonribosomal peptide synthetase (NRPS) gene clusters and one hybrid polyketide synthase (PKS)/NRPS gene cluster. The hybrid PKS/NRPS gene cluster was identified to be responsible for the biosynthesis of bacilosarcins and amicoumacins.
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26
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Park HB, Perez CE, Perry EK, Crawford JM. Activating and Attenuating the Amicoumacin Antibiotics. Molecules 2016; 21:molecules21070824. [PMID: 27347911 PMCID: PMC5055758 DOI: 10.3390/molecules21070824] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Revised: 06/07/2016] [Accepted: 06/20/2016] [Indexed: 01/10/2023] Open
Abstract
The amicoumacins belong to a class of dihydroisocoumarin natural products and display antibacterial, antifungal, anticancer, and anti-inflammatory activities. Amicoumacins are the pro-drug activation products of a bacterial nonribosomal peptide-polyketide hybrid biosynthetic pathway and have been isolated from Gram-positive Bacillus and Nocardia species. Here, we report the stimulation of a “cryptic” amicoumacin pathway in the entomopathogenic Gram-negative bacterium Xenorhabdus bovienii, a strain not previously known to produce amicoumacins. X. bovienii participates in a multi-lateral symbiosis where it is pathogenic to insects and mutualistic to its Steinernema nematode host. Waxmoth larvae are common prey of the X. bovienii-Steinernema pair. Employing a medium designed to mimic the amino acid content of the waxmoth circulatory fluid led to the detection and characterization of amicoumacins in X. bovienii. The chemical structures of the amicoumacins were supported by 2D-NMR, HR-ESI-QTOF-MS, tandem MS, and polarimeter spectral data. A comparative gene cluster analysis of the identified X. bovienii amicoumacin pathway to that of the Bacillus subtilis amicoumacin pathway and the structurally-related Xenorhabdus nematophila xenocoumacin pathway is presented. The X. bovienii pathway encodes an acetyltransferase not found in the other reported pathways, which leads to a series of N-acetyl-amicoumacins that lack antibacterial activity. N-acetylation of amicoumacin was validated through in vitro protein biochemical studies, and the impact of N-acylation on amicoumacin’s mode of action was examined through ribosomal structural analyses.
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Affiliation(s)
- Hyun Bong Park
- Department of Chemistry, Yale University, New Haven, CT 06520, USA.
- Chemical Biology Institute, Yale University, West Haven, CT 06516, USA.
| | - Corey E Perez
- Department of Chemistry, Yale University, New Haven, CT 06520, USA.
- Chemical Biology Institute, Yale University, West Haven, CT 06516, USA.
| | - Elena Kim Perry
- Chemical Biology Institute, Yale University, West Haven, CT 06516, USA.
- Department of Ecology & Evolutionary Biology, Yale University, New Haven, CT 06520, USA.
| | - Jason M Crawford
- Department of Chemistry, Yale University, New Haven, CT 06520, USA.
- Chemical Biology Institute, Yale University, West Haven, CT 06516, USA.
- Department of Microbial Pathogenesis, Yale School of Medicine, New Haven, CT 06536, USA.
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27
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Igarashi Y, Asano D, Sawamura M, In Y, Ishida T, Imoto M. Ulbactins F and G, Polycyclic Thiazoline Derivatives with Tumor Cell Migration Inhibitory Activity from Brevibacillus sp. Org Lett 2016; 18:1658-61. [DOI: 10.1021/acs.orglett.6b00531] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yasuhiro Igarashi
- Biotechnology
Research Center and Department of Biotechnology, Toyama Prefectural University, Imizu, Toyama 939-0398, Japan
| | - Daisuke Asano
- Biotechnology
Research Center and Department of Biotechnology, Toyama Prefectural University, Imizu, Toyama 939-0398, Japan
| | - Masashi Sawamura
- Biotechnology
Research Center and Department of Biotechnology, Toyama Prefectural University, Imizu, Toyama 939-0398, Japan
| | - Yasuko In
- Department
of Physical Chemistry, Osaka University of Pharmaceutical Sciences, Takatsuki, Osaka 569-1041, Japan
| | - Toshimasa Ishida
- Department
of Physical Chemistry, Osaka University of Pharmaceutical Sciences, Takatsuki, Osaka 569-1041, Japan
| | - Masaya Imoto
- Bioscience
and Informatics, Keio University, Yokohama, Kanagawa 223-8522, Japan
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28
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Isocoumarins, miraculous natural products blessed with diverse pharmacological activities. Eur J Med Chem 2016; 116:290-317. [PMID: 27155563 DOI: 10.1016/j.ejmech.2016.03.025] [Citation(s) in RCA: 122] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2015] [Revised: 03/08/2016] [Accepted: 03/10/2016] [Indexed: 12/17/2022]
Abstract
Isocoumarins are lactonic natural products abundant in microbes and higher plants. These are considered an amazing scaffold consecrated with more or less all types of pharmacological applications. This review is complementary to the earlier reviews and aims to focus the overlooked aspects of their fascinating chemistry with special emphasis on their classification and diverse biological activities with some SAR conclusions. The most recent available literature on the structural diversity and biological activity of these natural products has been reviewed.
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29
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Muñoz J, Köck M. Hybrid Pyrrole-Imidazole Alkaloids from the Sponge Agelas sceptrum. JOURNAL OF NATURAL PRODUCTS 2016; 79:434-437. [PMID: 26872204 DOI: 10.1021/acs.jnatprod.5b00265] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A chemical investigation of the tropical sponge Agelas sceptrum from Plana Cays (Bahamas) led to the isolation of two hybrid pyrrole-imidazole alkaloids (PIAs), 15'-oxoadenosceptrin (1) and decarboxyagelamadin C (2). Herein, we report their challenging structure elucidation established by NMR and ECD spectroscopy. 15'-Oxoadenosceptrin (1) shows sceptrin merged with an adenine moiety, not yet encountered in the PIA family, whereas decarboxyagelamadin C (2) is a close derivative of agelamadins C to E recently isolated from an Agelas sp. from Okinawa.
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Affiliation(s)
- Julie Muñoz
- Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung Am Handelshafen 12, 27570 Bremerhaven, Germany
| | - Matthias Köck
- Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung Am Handelshafen 12, 27570 Bremerhaven, Germany
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30
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Essig S, Menche D. Stereoselective Synthesis of Isochromanones by an Asymmetric Ortho-Lithiation Strategy: Synthetic Access to the Isochromanone Core of the Ajudazols. J Org Chem 2016; 81:1943-66. [DOI: 10.1021/acs.joc.5b02781] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Sebastian Essig
- Institut
für Organische Chemie, Ruprecht-Karls Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Dirk Menche
- Kekulé-Institut
für Organische Chemie und Biochemie, Universität Bonn, Gerhard-Domagk-Straße 1, 53121 Bonn, Germany
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Liu S, Han X, Jiang Z, Wu G, Hu X, You X, Jiang J, Zhang Y, Sun C. Hetiamacin B–D, new members of amicoumacin group antibiotics isolated from Bacillus subtilis PJS. J Antibiot (Tokyo) 2016; 69:769-772. [DOI: 10.1038/ja.2016.3] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Revised: 12/30/2015] [Accepted: 01/11/2016] [Indexed: 11/09/2022]
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Essig S, Schmalzbauer B, Bretzke S, Scherer O, Koeberle A, Werz O, Müller R, Menche D. Predictive Bioinformatic Assignment of Methyl-Bearing Stereocenters, Total Synthesis, and an Additional Molecular Target of Ajudazol B. J Org Chem 2016; 81:1333-57. [DOI: 10.1021/acs.joc.5b02844] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Sebastian Essig
- Institut
für Organische Chemie, Ruprecht-Karls Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Björn Schmalzbauer
- Kekulé-Institut
für Organische Chemie und Biochemie, Universität Bonn, Gerhard-Domagk-Strasse 1, 53121 Bonn, Germany
| | - Sebastian Bretzke
- Institut
für Organische Chemie, Ruprecht-Karls Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Olga Scherer
- Institute
of Pharmacy, Friedrich Schiller Universität Jena, Philosophenweg
14, 07743 Jena, Germany
| | - Andreas Koeberle
- Institute
of Pharmacy, Friedrich Schiller Universität Jena, Philosophenweg
14, 07743 Jena, Germany
| | - Oliver Werz
- Institute
of Pharmacy, Friedrich Schiller Universität Jena, Philosophenweg
14, 07743 Jena, Germany
| | - Rolf Müller
- Helmholtz
Institute for Pharmaceutical Research Saarland (HIPS) and Institut
for Pharmaceutical Biotechnology, Universität des Saarlandes, C 2.3, 66123 Saarbrücken, Germany
| | - Dirk Menche
- Kekulé-Institut
für Organische Chemie und Biochemie, Universität Bonn, Gerhard-Domagk-Strasse 1, 53121 Bonn, Germany
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Awla HK, Kadir J, Othman R, Rashid TS, Wong MY. Bioactive Compounds Produced by <i>Streptomyces</i> sp. Isolate UPMRS4 and Antifungal Activity against <i>Pyricularia oryzae</i>. ACTA ACUST UNITED AC 2016. [DOI: 10.4236/ajps.2016.77103] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Suzuki T, Nagasawa T, Enomoto M, Kuwahara S. Stereoselective total synthesis of amicoumacin C. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.02.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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35
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Two butenolides with PPARα agonistic activity from a marine-derived Streptomyces. J Antibiot (Tokyo) 2014; 68:345-7. [PMID: 25388602 DOI: 10.1038/ja.2014.151] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2014] [Revised: 09/23/2014] [Accepted: 10/04/2014] [Indexed: 11/08/2022]
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36
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Bai J, Liu D, Yu S, Proksch P, Lin W. Amicoumacins from the marine-derived bacterium Bacillus sp. with the inhibition of NO production. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.09.100] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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37
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Partial Racemization Occurring in the Hydroxylactonization of a δ,ε-Epoxy Amide. Biosci Biotechnol Biochem 2014; 74:2535-7. [DOI: 10.1271/bbb.100646] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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38
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Rigoli J, Guzei IA, Schomaker JM. Aminodiols via stereocontrolled oxidation of methyleneaziridines. Org Lett 2014; 16:1696-9. [PMID: 24617556 PMCID: PMC3993784 DOI: 10.1021/ol5003576] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Indexed: 11/30/2022]
Abstract
A highly diastereoselective Ru-catalyzed oxidation/reduction sequence of bicyclic methyleneaziridines provides a facile route to complex 1-amino-2,3-diol motifs. The relative anti stereochemistry between the amine and the vicinal alcohol are proposed to result from 1,3-bischelation in the transition state by the C1 and C3 heteroatoms.
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Affiliation(s)
- Jared
W. Rigoli
- Department of Chemistry, University of Wisconsin—Madison, Madison Wisconsin 53706, United States
| | - Ilia A. Guzei
- Department of Chemistry, University of Wisconsin—Madison, Madison Wisconsin 53706, United States
| | - Jennifer M. Schomaker
- Department of Chemistry, University of Wisconsin—Madison, Madison Wisconsin 53706, United States
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Abstract
This review covers the literature published in 2012 for marine natural products, with 1035 citations (673 for the period January to December 2012) referring to compounds isolated from marine microorganisms and phytoplankton, green, brown and red algae, sponges, cnidarians, bryozoans, molluscs, tunicates, echinoderms, mangroves and other intertidal plants and microorganisms. The emphasis is on new compounds (1241 for 2012), together with the relevant biological activities, source organisms and country of origin. Biosynthetic studies, first syntheses, and syntheses that lead to the revision of structures or stereochemistries, have been included.
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Affiliation(s)
- John W Blunt
- Department of Chemistry, University of Canterbury, Christchurch, New Zealand.
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Mondol MAM, Shin HJ, Islam MT. Diversity of secondary metabolites from marine Bacillus species: chemistry and biological activity. Mar Drugs 2013; 11:2846-72. [PMID: 23941823 PMCID: PMC3766869 DOI: 10.3390/md11082846] [Citation(s) in RCA: 119] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2013] [Revised: 07/12/2013] [Accepted: 07/29/2013] [Indexed: 11/16/2022] Open
Abstract
Marine Bacillus species produce versatile secondary metabolites including lipopeptides, polypeptides, macrolactones, fatty acids, polyketides, and isocoumarins. These structurally diverse compounds exhibit a wide range of biological activities, such as antimicrobial, anticancer, and antialgal activities. Some marine Bacillus strains can detoxify heavy metals through reduction processes and have the ability to produce carotenoids. The present article reviews the chemistry and biological activities of secondary metabolites from marine isolates. Side by side, the potential for application of these novel natural products from marine Bacillus strains as drugs, pesticides, carotenoids, and tools for the bioremediation of heavy metal toxicity are also discussed.
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Affiliation(s)
- Muhammad Abdul Mojid Mondol
- School of Science and Technology, Bangladesh Open University, Board Bazar, Gazipur 1705, Bangladesh; E-Mail:
| | - Hee Jae Shin
- Marine Natural Products Chemistry Laboratory, Korea Institute of Ocean Science & Technology, Ansan, P.O. Box 29, Seoul 425-600, Korea
| | - Mohammad Tofazzal Islam
- Department of Biotechnology, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706, Bangladesh
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Liu SW, Jin J, Chen C, Liu JM, Li JY, Wang FF, Jiang ZK, Hu JH, Gao ZX, Yao F, You XF, Si SY, Sun CH. PJS, a novel isocoumarin with hexahydropyrimidine ring from Bacillus subtilis PJS. J Antibiot (Tokyo) 2013; 66:281-4. [DOI: 10.1038/ja.2012.118] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Sun H, Ho CL, Ding F, Soehano I, Liu XW, Liang ZX. Synthesis of (R)-Mellein by a Partially Reducing Iterative Polyketide Synthase. J Am Chem Soc 2012; 134:11924-7. [DOI: 10.1021/ja304905e] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Huihua Sun
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive,
Singapore 637551
| | - Chun Loong Ho
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive,
Singapore 637551
| | - Feiqing Ding
- School
of Mathematics and Physics, Nanyang Technological University, 21 Nanyang Link, Singapore 637371
| | - Ishin Soehano
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive,
Singapore 637551
| | - Xue-Wei Liu
- School
of Mathematics and Physics, Nanyang Technological University, 21 Nanyang Link, Singapore 637371
| | - Zhao-Xun Liang
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive,
Singapore 637551
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Lama A, Pané-Farré J, Chon T, Wiersma AM, Sit CS, Vederas JC, Hecker M, Nakano MM. Response of methicillin-resistant Staphylococcus aureus to amicoumacin A. PLoS One 2012; 7:e34037. [PMID: 22479511 PMCID: PMC3316591 DOI: 10.1371/journal.pone.0034037] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2011] [Accepted: 02/21/2012] [Indexed: 11/18/2022] Open
Abstract
Amicoumacin A exhibits strong antimicrobial activity against methicillin-resistant Staphylococcus aureus (MRSA), hence we sought to uncover its mechanism of action. Genome-wide transcriptome analysis of S. aureus COL in response to amicoumacin A showed alteration in transcription of genes specifying several cellular processes including cell envelope turnover, cross-membrane transport, virulence, metabolism, and general stress response. The most highly induced gene was lrgA, encoding an antiholin-like product, which is induced in cells undergoing a collapse of Δψ. Consistent with the notion that LrgA modulates murein hydrolase activity, COL grown in the presence of amicoumacin A showed reduced autolysis, which was primarily caused by lower hydrolase activity. To gain further insight into the mechanism of action of amicoumacin A, a whole genome comparison of wild-type COL and amicoumacin A-resistant mutants isolated by a serial passage method was carried out. Single point mutations generating codon substitutions were uncovered in ksgA (encoding RNA dimethyltransferase), fusA (elongation factor G), dnaG (primase), lacD (tagatose 1,6-bisphosphate aldolase), and SACOL0611 (a putative glycosyl transferase). The codon substitutions in EF-G that cause amicoumacin A resistance and fusidic acid resistance reside in separate domains and do not bring about cross resistance. Taken together, these results suggest that amicoumacin A might cause perturbation of the cell membrane and lead to energy dissipation. Decreased rates of cellular metabolism including protein synthesis and DNA replication in resistant strains might allow cells to compensate for membrane dysfunction and thus increase cell survivability.
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Affiliation(s)
- Amrita Lama
- Division of Environmental and Biomolecular Systems, Institute of Environmental Health, Oregon Health & Science University, Beaverton, Oregon, United States of America
| | - Jan Pané-Farré
- Institute for Microbiology, Ernst-Moritz-Arndt-University Greifswald, Greifswald, Germany
| | - Tai Chon
- Division of Environmental and Biomolecular Systems, Institute of Environmental Health, Oregon Health & Science University, Beaverton, Oregon, United States of America
| | - Anna M. Wiersma
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada
| | - Clarissa S. Sit
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada
| | - John C. Vederas
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada
| | - Michael Hecker
- Institute for Microbiology, Ernst-Moritz-Arndt-University Greifswald, Greifswald, Germany
| | - Michiko M. Nakano
- Division of Environmental and Biomolecular Systems, Institute of Environmental Health, Oregon Health & Science University, Beaverton, Oregon, United States of America
- * E-mail:
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46
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Li Y, Xu Y, Liu L, Han Z, Lai PY, Guo X, Zhang X, Lin W, Qian PY. Five new amicoumacins isolated from a marine-derived bacterium Bacillus subtilis. Mar Drugs 2012; 10:319-328. [PMID: 22412803 PMCID: PMC3296999 DOI: 10.3390/md10020319] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2011] [Revised: 01/29/2012] [Accepted: 01/30/2012] [Indexed: 11/29/2022] Open
Abstract
Four novel amicoumacins, namely lipoamicoumacins A-D (1-4), and one new bacilosarcin analog (5) were isolated from culture broth of a marine-derived bacterium Bacillus subtilis, together with six known amicoumacins. Their structures were elucidated on the basis of extensive spectroscopic (2D NNR, IR, CD and MS) analysis and in comparison with data in literature.
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Affiliation(s)
- Yongxin Li
- KAUST Global Collaborative Research, Division of Life Science, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China; (Y.L.); (Y.X.); (L.L.); (Z.H.); (P.Y.L.)
| | - Ying Xu
- KAUST Global Collaborative Research, Division of Life Science, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China; (Y.L.); (Y.X.); (L.L.); (Z.H.); (P.Y.L.)
| | - Lingli Liu
- KAUST Global Collaborative Research, Division of Life Science, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China; (Y.L.); (Y.X.); (L.L.); (Z.H.); (P.Y.L.)
| | - Zhuang Han
- KAUST Global Collaborative Research, Division of Life Science, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China; (Y.L.); (Y.X.); (L.L.); (Z.H.); (P.Y.L.)
| | - Pok Yui Lai
- KAUST Global Collaborative Research, Division of Life Science, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China; (Y.L.); (Y.X.); (L.L.); (Z.H.); (P.Y.L.)
| | - Xiangrong Guo
- Advanced Nano-fabrication, Imaging & Characterization Core lab, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia; (X.G.); (X.Z.)
| | - Xixiang Zhang
- Advanced Nano-fabrication, Imaging & Characterization Core lab, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia; (X.G.); (X.Z.)
| | - Wenhan Lin
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100191, China;
| | - Pei-Yuan Qian
- KAUST Global Collaborative Research, Division of Life Science, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China; (Y.L.); (Y.X.); (L.L.); (Z.H.); (P.Y.L.)
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Hamdache A, Lamarti A, Aleu J, Collado IG. Non-peptide metabolites from the genus Bacillus. JOURNAL OF NATURAL PRODUCTS 2011; 74:893-899. [PMID: 21401023 DOI: 10.1021/np100853e] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Bacillus species produce a number of non-peptide metabolites that display a broad spectrum of activity and structurally diverse bioactive chemical structures. Biosynthetic, biological, and structural studies of these metabolites isolated from Bacillus species are reviewed. This contribution also includes a detailed study of the activity of the metabolites described, especially their role in biological control mechanisms.
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Affiliation(s)
- Ahlem Hamdache
- Department of Biology, Faculty of Sciences, University of Abdelmalek Essaadi, 2121, Tetuan, Morocco
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48
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Enomoto M, Kuwahara S. Synthetic Studies on Bacilosarcins A and B, and Related Natural Products. J SYN ORG CHEM JPN 2010. [DOI: 10.5059/yukigoseikyokaishi.68.387] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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49
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Blunt JW, Copp BR, Munro MHG, Northcote PT, Prinsep MR. Marine natural products. Nat Prod Rep 2010; 27:165-237. [DOI: 10.1039/b906091j] [Citation(s) in RCA: 322] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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50
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Wang L, Zhang X, Jiang Y, Ma D. An efficient synthesis of isocoumarins via a CuI catalyzed cascade reaction process. ACTA ACUST UNITED AC 2009. [DOI: 10.1007/s11426-009-0197-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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