1
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Paquette AR, Brazeau-Henrie JT, Boddy CN. Thioesterases as tools for chemoenzymatic synthesis of macrolactones. Chem Commun (Camb) 2024; 60:3379-3388. [PMID: 38456624 DOI: 10.1039/d4cc00401a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2024]
Abstract
Macrocycles are a key functional group that can impart unique properties into molecules. Their synthesis has led to the development of many outstanding chemical methodologies and yet still remains challenging. Thioesterase (TE) domains are frequently responsible for macrocyclization in natural product biosynthesis and provide unique strengths for the enzymatic synthesis of macrocycles. In this feature article, we describe our work to characterize the substrate selectivity of TEs and to use these enzymes as biocatalysts. Our efforts have shown that the linear thioester activated substrates are loaded on TEs with limited substrate selectivity to generate acyl-enzyme intermediates. We show that cyclization of the acyl-enzyme intermediates can be highly selective, with competing hydrolysis of the acyl-enzyme intermediates. The mechanisms controlling TE-mediated macrocyclization versus hydrolysis are a significant unsolved problem in TE biochemistry. The potential of TEs as biocatalysts was demonstrated by using them in the chemoenzymatic total synthesis of macrocyclic depsipeptide natural products. This article highlights the strengths and potential of TEs as biocatalysts as well as their limitations, opening exciting research opportunities including TE engineering to optimize these powerful biocatalysts.
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Affiliation(s)
- André R Paquette
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, ON, Canada K1N 6N5.
| | - Jordan T Brazeau-Henrie
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, ON, Canada K1N 6N5.
| | - Christopher N Boddy
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, ON, Canada K1N 6N5.
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2
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Akai Y, Asahina Y, Hojo H. The dipicolylamino group as an efficient leaving group for amide bond formation via hexafluoroisopropyl ester. Org Biomol Chem 2024; 22:1699-1707. [PMID: 38305756 DOI: 10.1039/d4ob00045e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
Peptide dipicolylamide was prepared by the solid-phase method. The amide was activated by Cu(II) ions in hexafluoroisopropanol and converted to the corresponding active ester. It was condensed with the C-terminal segment to realize segment coupling. The method was successfully applied to the synthesis of an atrial natriuretic peptide and RNase T1.
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Affiliation(s)
- Yasuhito Akai
- Institute for Protein Research, Osaka, University, 3-2 Yamadaoka, Suita, Osaka 5650871, Japan.
| | - Yuya Asahina
- Institute for Protein Research, Osaka, University, 3-2 Yamadaoka, Suita, Osaka 5650871, Japan.
| | - Hironobu Hojo
- Institute for Protein Research, Osaka, University, 3-2 Yamadaoka, Suita, Osaka 5650871, Japan.
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3
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Song Y, Wang Z, Ji H, Jiang Z, Li X, Du Z, Wei S, Sun Y. Fatty acid modification of casein bioactive peptides nano-assemblies, synthesis, characterization and anticarcinogenic effect. Int J Biol Macromol 2024; 254:127718. [PMID: 37918594 DOI: 10.1016/j.ijbiomac.2023.127718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 11/04/2023]
Abstract
In this study, the nano-assemblies of bovine casein hydrolyzed peptides (HP) modified by fatty acids with various alkyl chain lengths (C8, C10, C12 and C14) were synthesized. The physicochemical properties of HP-C8-HP-C14 nano-assemblies were characterized using spectra, laser particle size analyzer, contact angle meter, scanning electron microscope (SEM) and cryo-transmission electron microscope (Cryo-TEM). HP-C8 and HP-C10 self-assembled into a hollow cube cage with an average size of ~500 nm, and the assembly of HP-C12 showed a flower-shaped morphology with more dispersed behavior, and droplet size was observed as ~20 nm. The in vitro cytotoxicity against human breast cancer cells MCF-7 was tested using CCK-8 assay and flow cytometry analysis. HP-C12 showed the highest cytotoxicity for MCF-7 cells with an inhibition rate of 66.03 % ± 0.35 % with an IC50 value of 7.4 μM among HP-Cn. HP-C8, HP-C10 and HP-C12 significantly affected on the migration, invasion and apoptosis of MCF-7 cells. The apoptosis mechanism may depend on the upregulation of anti-apoptotic protein Bcl-2 as well as pro-apoptotic proteins Bax and caspase-8. The dead MCF-7 cells were analyzed with UHPLC-MS/MS using untargeted metabolomics, revealing key metabolic pathways.
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Affiliation(s)
- Yang Song
- College of Vocational and Technical Education, Yunnan Normal University, Kunming, Yunnan, China
| | - Zhichun Wang
- College of Vocational and Technical Education, Yunnan Normal University, Kunming, Yunnan, China
| | - Hang Ji
- College of Vocational and Technical Education, Yunnan Normal University, Kunming, Yunnan, China
| | - Zhongyou Jiang
- College of Vocational and Technical Education, Yunnan Normal University, Kunming, Yunnan, China
| | - Xiujuan Li
- Pharmaceutical Department, The Affiliated Taian City Central Hospital of Qingdao University, Taian, 271000, China
| | - Zhongyao Du
- College of Vocational and Technical Education, Yunnan Normal University, Kunming, Yunnan, China
| | - Song Wei
- Tumor Precise Intervention and Translational Medicine Laboratory, The Affiliated Taian City Central Hospital of Qingdao University, Taian, 271000, China.
| | - Yang Sun
- College of Vocational and Technical Education, Yunnan Normal University, Kunming, Yunnan, China.
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4
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Zhang Z, Liu J, Xiao M, Zhang Q, Liu Z, Liu M, Zhang P, Zeng Y. Peptide nanotube loaded with a STING agonist, c-di-GMP, enhance cancer immunotherapy against melanoma. NANO RESEARCH 2022; 16:5206-5215. [PMID: 36405984 PMCID: PMC9643898 DOI: 10.1007/s12274-022-5102-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 09/25/2022] [Accepted: 09/26/2022] [Indexed: 05/25/2023]
Abstract
The activation of the stimulating factor of the interferon gene (STING) pathway can enhance the immune response within the tumor. Cyclic diguanylate monophosphate (c-di-GMP) is a negatively charged, hydrophilic STING agonist, however, its effectiveness is limited due to the poor membrane permeability and low bioavailability. Herein, we introduced KL-7 peptide derived from Aβ amyloid fibrils that can self-assemble to form nanotubes to load and deliver c-di-GMP, which significantly enhanced c-di-GMP's effectiveness and then exhibited a robust "in situ immunity" to kill melanoma cells. KL-7 peptide nanotube, also called PNT, was loaded with negatively charged c-di-GMP via electrostatic interaction, which prepared a nanocomposite named c-di-GMP-PNT. Treatment of RAW 264.7 cells (leukemia cells in mouse macrophage) with c-di-GMP-PNT markedly stimulated the secretion of IL-6 and INF-β along with phospho-STING (Ser365) protein expression, indicating the activation of the STING pathway. In the unilateral flank B16-F10 (murine melanoma cells) tumor-bearing mouse model, compared to PNT and c-di-GMP, c-di-GMP-PNT can promote the expression of INF-β, TNF-α, IL-6, and IL-1β. At the same time, up-regulated CD4 and CD8 active T cells kill tumors and enhance the immune response in tumor tissues, resulting in significant inhibition of tumor growth in tumor-bearing mice. More importantly, in a bilateral flank B16-F10 tumor model, both primary and distant tumor growth can also be significantly inhibited by c-di-GMP-PNT. Moreover, c-di-GMP-PNT demonstrated no obvious biological toxicity on the main organs (heart, liver, spleen, lung, and kidney) and biochemical indexes of mice. In summary, our study provides a strategy to overcome the barriers of free c-di-GMP in the tumor microenvironment and c-di-GMP-PNT may be an attractive nanomaterial for anti-tumor immunity. Electronic Supplementary Material Supplementary material (synthesis and characterization of KL-7 peptide; the encapsulation rate and cumulative release rate of c-di-GMP-PNT; cytotoxicity of PNT, c-di-GMP, and c-di-GMP-PNT; anti-tumor effect of c-di-GMP-PNT (equivalent to 1 and 5 µg c-di-GMP per mouse); representative immunofluorescence images; and biosafety analysis) is available in the online version of this article at 10.1007/s12274-022-5102-z.
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Affiliation(s)
- Ziyuan Zhang
- Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, 410081 China
- Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, Changsha, 410081 China
| | - Juan Liu
- Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, 410081 China
- Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, Changsha, 410081 China
| | - Min Xiao
- Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, 410081 China
- Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, Changsha, 410081 China
| | - Quanfeng Zhang
- Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, 410081 China
- Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, Changsha, 410081 China
| | - Zhonghua Liu
- The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha, 410081 China
| | - Meiyan Liu
- Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, 410081 China
- Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, Changsha, 410081 China
| | - Peng Zhang
- The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha, 410081 China
| | - Youlin Zeng
- Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, 410081 China
- Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, Changsha, 410081 China
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5
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Otaka A. Development of Naturally Inspired Peptide and Protein Chemistry. Chem Pharm Bull (Tokyo) 2022; 70:748-764. [DOI: 10.1248/cpb.c22-00623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Akira Otaka
- Institute of Biomedical Sciences and Graduate School of Pharmaceutical Sciences, Tokushima University
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6
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Bilbrough T, Piemontese E, Seitz O. Dissecting the role of protein phosphorylation: a chemical biology toolbox. Chem Soc Rev 2022; 51:5691-5730. [PMID: 35726784 DOI: 10.1039/d1cs00991e] [Citation(s) in RCA: 55] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Protein phosphorylation is a crucial regulator of protein and cellular function, yet, despite identifying an enormous number of phosphorylation sites, the role of most is still unclear. Each phosphoform, the particular combination of phosphorylations, of a protein has distinct and diverse biological consequences. Aberrant phosphorylation is implicated in the development of many diseases. To investigate their function, access to defined protein phosphoforms is essential. Materials obtained from cells often are complex mixtures. Recombinant methods can provide access to defined phosphoforms if site-specifically acting kinases are known, but the methods fail to provide homogenous material when several amino acid side chains compete for phosphorylation. Chemical and chemoenzymatic synthesis has provided an invaluable toolbox to enable access to previously unreachable phosphoforms of proteins. In this review, we selected important tools that enable access to homogeneously phosphorylated protein and discuss examples that demonstrate how they can be applied. Firstly, we discuss the synthesis of phosphopeptides and proteins through chemical and enzymatic means and their advantages and limitations. Secondly, we showcase illustrative examples that applied these tools to answer biological questions pertaining to proteins involved in signal transduction, control of transcription, neurodegenerative diseases and aggregation, apoptosis and autophagy, and transmembrane proteins. We discuss the opportunities and challenges in the field.
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Affiliation(s)
- Tim Bilbrough
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Str. 2, 12489 Berlin, Germany.
| | - Emanuele Piemontese
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Str. 2, 12489 Berlin, Germany.
| | - Oliver Seitz
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Str. 2, 12489 Berlin, Germany.
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7
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Denda M, Otaka A. Advances in Preparation of Peptide and Protein Thioesters Aiming to Use in Medicinal Sciences. Chem Pharm Bull (Tokyo) 2022; 70:316-323. [DOI: 10.1248/cpb.c21-01019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Masaya Denda
- Institute of Biomedical Sciences and Graduate School of Pharmaceutical Sciences, Tokushima University
| | - Akira Otaka
- Institute of Biomedical Sciences and Graduate School of Pharmaceutical Sciences, Tokushima University
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8
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Characterization of a novel affinity binding ligand for tyrosine nitrated peptides from a phage-displayed peptide library. Talanta 2022; 241:123225. [DOI: 10.1016/j.talanta.2022.123225] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Revised: 12/29/2021] [Accepted: 01/09/2022] [Indexed: 01/10/2023]
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9
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Asahina Y, Ando T, Hojo H. Toward the chemical syntheses of fucosylated peptides: A combination of protecting groups for the hydroxy groups of fucose. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2022. [DOI: 10.1246/bcsj.20220037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yuya Asahina
- Institute for Protein Research, Osaka University, 3-2, Yamadaoka, Suita, Osaka 565-0871
| | - Tatsuya Ando
- Institute for Protein Research, Osaka University, 3-2, Yamadaoka, Suita, Osaka 565-0871
| | - Hironobu Hojo
- Institute for Protein Research, Osaka University, 3-2, Yamadaoka, Suita, Osaka 565-0871
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10
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Chen K, Yu FQ, Zhang YN, Fang GM. Total Chemical Synthesis of a SARS-CoV-2 Miniprotein Inhibitor LCB1. Methods Mol Biol 2022; 2530:19-31. [PMID: 35761039 DOI: 10.1007/978-1-0716-2489-0_2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Native chemical ligation is a widely used technique for peptide fragment condensation in aqueous solutions, which has broken through the length limitation of traditional solid-phase peptide synthesis. It can achieve high-efficient chemical synthesis of proteins containing more than 300 amino acid residues. Peptide hydrazide, as a valuable reagent equivalent to a thioester peptide, can be easily and efficiently prepared by the Fmoc-based SPPS method and has been widely used in native chemical ligation. Here we take the chemical synthesis of a SARS-CoV-2 miniprotein inhibitor LCB1 as an example to describe the detailed procedure of hydrazide-based native chemical ligation.
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Affiliation(s)
- Kai Chen
- Department of Health Sciences, Institutes of Physical Science and Information Technology, Anhui University, Hefei, China
| | - Fei-Qiang Yu
- Department of Health Sciences, Institutes of Physical Science and Information Technology, Anhui University, Hefei, China
| | - Yan-Ni Zhang
- Department of Health Sciences, Institutes of Physical Science and Information Technology, Anhui University, Hefei, China
| | - Ge-Min Fang
- Department of Health Sciences, Institutes of Physical Science and Information Technology, Anhui University, Hefei, China.
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11
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Li F, Wu S, Chen N, Zhu J, Zhao X, Zhang P, Zeng Y, Liu Z. Fatty Acid Modification of the Anticancer Peptide LVTX-9 to Enhance Its Cytotoxicity against Malignant Melanoma Cells. Toxins (Basel) 2021; 13:toxins13120867. [PMID: 34941705 PMCID: PMC8708390 DOI: 10.3390/toxins13120867] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Revised: 11/24/2021] [Accepted: 12/01/2021] [Indexed: 01/10/2023] Open
Abstract
Spider venom is a valuable resource for the development of novel anticancer drugs. In this study, we focused on novel linear amphipathic α-helical anticancer peptide LVTX-9, which was derived from the cDNA library of the venom gland of the spider Lycosa vittata. The cytotoxicity of LVTX-9 against murine melanoma cells in the range of 1.56-200 μM was tested and found to be significantly lower than those of most anticancer peptides reported. Its IC50 was determined to be 59.2 ± 19.8 μM in a serum or 76.3 ± 12.7 μM in serum-free medium. Fatty acid modification is a promising strategy for improving peptide performance. Therefore, to enhance the cytotoxic activity of LVTX-9, fatty acid modification of this peptide was performed, and five different carbon chain length lipopeptides named LVTX-9-C12-C20 were produced. Among them, the lipopeptide LVTX-9-C18 showed the highest cytotoxic activity in relation to B16-F10 cells, whether in a serum or serum-free medium. Most importantly, the cytotoxic activity of LVTX-9-C18 was improved by about 12.9 times in a serum medium or 19.3 times in a serum-free medium compared to that of LVTX-9. Subsequently, assays including scanning electron microscopy, trypan blue staining, lactate dehydrogenase leakage assay, and hemolytic activity could indicate that the potential direct cell membrane disruption is the main mechanism of LVTX-9-C18 to induce cancer cell death. Furthermore, the LVTX-9-C18 also showed strong cytotoxicity in relation to 3D B16-F10 spheroids, which indicates it might be a promising lead for developing anticancer drugs.
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Affiliation(s)
- Fengjiao Li
- The National and Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha 410081, China; (F.L.); (S.W.); (N.C.); (J.Z.); (X.Z.)
| | - Saizhi Wu
- The National and Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha 410081, China; (F.L.); (S.W.); (N.C.); (J.Z.); (X.Z.)
| | - Ninglin Chen
- The National and Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha 410081, China; (F.L.); (S.W.); (N.C.); (J.Z.); (X.Z.)
| | - Jingyu Zhu
- The National and Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha 410081, China; (F.L.); (S.W.); (N.C.); (J.Z.); (X.Z.)
| | - Xinxin Zhao
- The National and Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha 410081, China; (F.L.); (S.W.); (N.C.); (J.Z.); (X.Z.)
| | - Peng Zhang
- The National and Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha 410081, China; (F.L.); (S.W.); (N.C.); (J.Z.); (X.Z.)
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Hunan Normal University), Ministry of Education, College of Chemistry & Chemical Engineering, Changsha 410081, China
- Correspondence: (P.Z.); (Y.Z.); (Z.L.)
| | - Youlin Zeng
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Hunan Normal University), Ministry of Education, College of Chemistry & Chemical Engineering, Changsha 410081, China
- Correspondence: (P.Z.); (Y.Z.); (Z.L.)
| | - Zhonghua Liu
- The National and Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha 410081, China; (F.L.); (S.W.); (N.C.); (J.Z.); (X.Z.)
- Correspondence: (P.Z.); (Y.Z.); (Z.L.)
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12
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Zhao X, Zhang P, Li Y, Wu S, Li F, Wang Y, Liang S, He X, Zeng Y, Liu Z. Glucose-Lipopeptide Conjugates Reveal the Role of Glucose Modification Position in Complexation and the Potential of Malignant Melanoma Therapy. J Med Chem 2021; 64:11483-11495. [PMID: 34282902 DOI: 10.1021/acs.jmedchem.1c00805] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Glycosylation and fatty acid modification are promising strategies to improve peptide performance. We previously studied glycosylation and fatty acid modification of the anticancer peptide R-lycosin-I. In this study, we further investigated the co-modification of fatty acids and monosaccharides in R-lycosin-I. A glucose derivative was covalently coupled to the ε-amino group of the Lys residues of the lipopeptide R-C12, which was derived from R-lycosin-I modified with dodecanoic acid, and obtained seven glycolipid peptides. They exhibited different cytotoxicity profiles, which may be related to the changes in physicochemical properties and binding ability to glucose transporter 1 (GLUT1). Among them, R-C12-4 exhibited the highest cytotoxicity and improved selectivity. A further study demonstrated that R-C12-4 showed significant cytotoxicity and antimetastasis activity in murine melanoma cells, melanoma spheroids, and animal models. Our results indicated that the glucose derivative modification position plays important roles in glucose-lipopeptide conjugates, and R-C12-4 might be a promising lead for developing anticancer drugs.
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Affiliation(s)
- Xinxin Zhao
- The National and Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
| | - Peng Zhang
- The National and Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China.,Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Hunan Normal University), Ministry of Education, College of Chemistry & Chemical Engineering, Changsha, Hunan 410081, China
| | - Yaqi Li
- The National and Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
| | - Saizhi Wu
- The National and Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
| | - Fengjiao Li
- The National and Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
| | - Ying Wang
- The National and Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
| | - Songping Liang
- The National and Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
| | - Xiao He
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China.,New York University-East China Normal University Center for Computational Chemistry, New York University Shanghai, Shanghai 200062, China
| | - Youlin Zeng
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Hunan Normal University), Ministry of Education, College of Chemistry & Chemical Engineering, Changsha, Hunan 410081, China
| | - Zhonghua Liu
- The National and Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China
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13
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Perkins WS, Davison RT, Shelkey GB, Lawson VE, Hutton GE, Miller JS. Unmasking latent thioesters under hydrophobic-compatible conditions. J Pept Sci 2021; 27:e3358. [PMID: 34121261 DOI: 10.1002/psc.3358] [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: 09/06/2020] [Revised: 05/28/2021] [Accepted: 05/31/2021] [Indexed: 11/08/2022]
Abstract
Hydrophobic latent C-terminal thioesters were converted into thioesters, and were also coupled with cysteine in one-pot reactions, using conditions generally compatible with hydrophobic materials. The reaction conditions (ethanethiol and triethylamine in a mixture of DMF and THF) are compatible with acid-labile protecting groups (Boc/t-Bu) that are standard in Fmoc peptide synthesis.
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Affiliation(s)
- Wade S Perkins
- Department of Chemistry, Hobart and William Smith Colleges, Geneva, NY, USA
| | - Ryan T Davison
- Department of Chemistry, Hobart and William Smith Colleges, Geneva, NY, USA
| | - Gregory B Shelkey
- Department of Chemistry, Hobart and William Smith Colleges, Geneva, NY, USA
| | - Vernon E Lawson
- Department of Chemistry, Hobart and William Smith Colleges, Geneva, NY, USA
| | - Grace E Hutton
- Department of Chemistry, Hobart and William Smith Colleges, Geneva, NY, USA
| | - Justin S Miller
- Department of Chemistry, Hobart and William Smith Colleges, Geneva, NY, USA
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14
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Peptide Hydrazides as Thioester Equivalents for the Chemical Synthesis of Proteins. METHODS IN MOLECULAR BIOLOGY (CLIFTON, N.J.) 2021; 2133:119-140. [PMID: 32144665 DOI: 10.1007/978-1-0716-0434-2_6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
The chemical synthesis of proteins allows for the precise control of structural information at the atomic level, overcoming the limits of protein expression. Peptide hydrazides are widely used as thioester equivalents in the total chemical synthesis and semisynthesis of proteins as they can be easily prepared using standard solid phase peptide synthesis (SPPS) and recombinant peptide techniques. Via treatment with NaNO2 and subsequent thiolysis, peptide hydrazides can be rapidly converted to peptide thioesters, which then selectively react with recombinant protein containing an N-terminal cysteine (Cys) to form a native peptide bond, thereby linking the two peptide segments without isolating any intermediates.
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15
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Takei T, Ando T, Takao T, Ohnishi Y, Kurisu G, Iwaoka M, Hojo H. Chemical synthesis of ferredoxin with 4 selenocysteine residues using a segment condensation method. Chem Commun (Camb) 2020; 56:14239-14242. [PMID: 33118552 DOI: 10.1039/d0cc06252a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ferredoxin (Fd) is an electron carrier protein containing a [2Fe-2S] cluster. In this paper, we synthesized Se-Fd, in which four Cys residues coordinated to the cluster are substituted to selenocysteine. After the one-pot segment coupling by the thioester method, followed by deprotection and cluster loading, the desired Se-Fd was successfully obtained.
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Affiliation(s)
- Toshiki Takei
- Institute for Protein Research, Osaka University, Osaka 565-0871, Japan.
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16
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Verzele D, Ruiz García Y, Madder A. Untapped Opportunities of Resin-to-Resin Transfer Reactions (RRTR) for the Convergent Assembly of Multivalent Peptide Conjugates. Chemistry 2020; 26:4701-4705. [PMID: 31997431 DOI: 10.1002/chem.202000434] [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: 01/26/2020] [Indexed: 11/07/2022]
Abstract
Handling of the individual fragments remains a bottleneck in the convergent assembly of peptides. Overlooked since the emergence of ligation chemistries during the past two decades, so-called resin-to-resin transfer reactions (RRTR) are here described as a strategic shortcut in this context. Condensation of the involved moieties at an acceptor resin is facilitated by shuttling peptide segments directly from a donor resin in a one-pot fashion. The straightforward synthesis of a sterically constrained 13-mer peptidosteroid model illustrates the utility of this approach, presenting the first successful application of the RRTR methodology in the field of multivalent design and bioconjugation. Relying on established procedures to generate, monitor and isolate intermediates and products, the solid-phase nature of the entire strategy allows for the fast construction of polypeptide adducts and libraries thereof. As such, a rejuvenated use and new opportunities for RRTR are reported.
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Affiliation(s)
- Dieter Verzele
- Organic and Biomimetic Chemistry Research Group, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 (S4), 9000, Ghent, Belgium
| | - Yara Ruiz García
- Organic and Biomimetic Chemistry Research Group, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 (S4), 9000, Ghent, Belgium
| | - Annemieke Madder
- Organic and Biomimetic Chemistry Research Group, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 (S4), 9000, Ghent, Belgium
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17
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Site-Specific Phosphorylation of PDZ Domains. Methods Mol Biol 2020. [PMID: 32144671 DOI: 10.1007/978-1-0716-0434-2_12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
Classical approaches for probing protein phosphorylation events rely on phosphomimicking amino acids or enzymatic phosphorylation of proteins. In many cases, phosphomimicking amino acids inadequately imitate actual protein phosphorylation, whereas the latter method suffers from an inability to control site specificity and stoichiometry. To circumvent these shortcomings, chemical biological approaches have been developed to enable introduction of phosphorylated amino acids into proteins in a reliable and controlled way. Here, we describe methods to make semisynthetic, phosphorylated PDZ domains, covering expressed protein ligation (EPL) strategies involving modifications within the N-terminal or C-terminal regions. We also enclose protocols for the biophysical characterization of the semisynthetic phosphorylated PDZ domains to establish whether the introduced phosphorylation affects protein structure, stability, and function.
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18
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Asahina Y, Hojo H. One Step Synthesis of Fmoc-Aminoacyl- N-alkylcysteine via the Ugi Four-Component Condensation Reaction. J Org Chem 2020; 85:1458-1465. [PMID: 31793784 DOI: 10.1021/acs.joc.9b02433] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
A prompt preparation method of the Fmoc-aminoacyl-N-alkylcysteine dipeptide by an Ugi four-component condensation reaction is described. Through a reaction with a commercially available Fmoc-amino acid, an amine, an isocyanide, and a mercaptoacetaldehyde derivative, one step synthesis of dipeptides containing 20 kinds of natural amino acid residues was achieved, which avoided the problematic N-alkylation of S-tritylcysteine and its coupling reaction. The dipeptide was applied to the Fmoc-solid-phase peptide synthesis, and peptide thioesters were successfully obtained in high efficiency via N-alkylcysteine (NAC)-assisted thioesterification.
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Affiliation(s)
- Yuya Asahina
- Institute for Protein Research , Osaka University , Yamadaoka 3-2 , Suita 565-0871 , Japan
| | - Hironobu Hojo
- Institute for Protein Research , Osaka University , Yamadaoka 3-2 , Suita 565-0871 , Japan
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19
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Abboud SA, Aucagne V. An optimized protocol for the synthesis of N-2-hydroxybenzyl-cysteine peptide crypto-thioesters. Org Biomol Chem 2020; 18:8199-8208. [PMID: 33034311 DOI: 10.1039/d0ob01737j] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
We herein report a robust upgraded synthetic protocol for the synthesis of N-Hnb-Cys crypto-thioester peptides, useful building blocks for segment-based chemical protein synthesis through native chemical ligation. We recently observed the formation of an isomeric co-product when using a different solid support than the originally-reported one, thus hampering the general applicability of the methodology. We undertook a systematic study to characterize this compound and identify the parameters favouring its formation. We show here that epimerization from l- to d-cysteine occurred during the key solid-supported reductive amination step. We also observed the formation of imidazolidinones by-products arising from incomplete reduction of the imine. Structural characterization combined with the deciphering of underlying reaction mechanisms allowed us to optimize conditions that abolished the formation of all these side-products.
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Affiliation(s)
- Skander A Abboud
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Rue Charles Sadron, 45071, Orléans cedex 2, France.
| | - Vincent Aucagne
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Rue Charles Sadron, 45071, Orléans cedex 2, France.
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20
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Zhang P, Jian C, Jian S, Zhang Q, Sun X, Nie L, Liu B, Li F, Li J, Liu M, Liang S, Zeng Y, Liu Z. Position Effect of Fatty Acid Modification on the Cytotoxicity and Antimetastasis Potential of the Cytotoxic Peptide Lycosin-I. J Med Chem 2019; 62:11108-11118. [DOI: 10.1021/acs.jmedchem.9b01126] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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21
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The Ancestral N-Terminal Domain of Big Defensins Drives Bacterially Triggered Assembly into Antimicrobial Nanonets. mBio 2019; 10:mBio.01821-19. [PMID: 31641083 PMCID: PMC6805989 DOI: 10.1128/mbio.01821-19] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
β-Defensins are host defense peptides controlling infections in species ranging from humans to invertebrates. However, the antimicrobial activity of most human β-defensins is impaired at physiological salt concentrations. We explored the properties of big defensins, the β-defensin ancestors, which have been conserved in a number of marine organisms, mainly mollusks. By focusing on a big defensin from oyster (Cg-BigDef1), we showed that the N-terminal domain lost during evolution toward β-defensins confers bactericidal activity to Cg-BigDef1, even at high salt concentrations. Cg-BigDef1 killed multidrug-resistant human clinical isolates of Staphylococcus aureus. Moreover, the ancestral N-terminal domain drove the assembly of the big defensin into nanonets in which bacteria are entrapped and killed. This discovery may explain why the ancestral N-terminal domain has been maintained in diverse marine phyla and creates a new path of discovery to design β-defensin derivatives active at physiological and high salt concentrations. Big defensins, ancestors of β-defensins, are composed of a β-defensin-like C-terminal domain and a globular hydrophobic ancestral N-terminal domain. This unique structure is found in a limited number of phylogenetically distant species, including mollusks, ancestral chelicerates, and early-branching cephalochordates, mostly living in marine environments. One puzzling evolutionary issue concerns the advantage for these species of having maintained a hydrophobic domain lost during evolution toward β-defensins. Using native ligation chemistry, we produced the oyster Crassostrea gigas BigDef1 (Cg-BigDef1) and its separate domains. Cg-BigDef1 showed salt-stable and broad-range bactericidal activity, including against multidrug-resistant human clinical isolates of Staphylococcus aureus. We found that the ancestral N-terminal domain confers salt-stable antimicrobial activity to the β-defensin-like domain, which is otherwise inactive. Moreover, upon contact with bacteria, the N-terminal domain drives Cg-BigDef1 assembly into nanonets that entrap and kill bacteria. We speculate that the hydrophobic N-terminal domain of big defensins has been retained in marine phyla to confer salt-stable interactions with bacterial membranes in environments where electrostatic interactions are impaired. Those remarkable properties open the way to future drug developments when physiological salt concentrations inhibit the antimicrobial activity of vertebrate β-defensins.
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22
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Zhang B, Deng Q, Zuo C, Yan B, Zuo C, Cao XX, Zhu TF, Zheng JS, Liu L. Ligation of Soluble but Unreactive Peptide Segments in the Chemical Synthesis of Haemophilus Influenzae DNA Ligase. Angew Chem Int Ed Engl 2019; 58:12231-12237. [PMID: 31250514 DOI: 10.1002/anie.201905149] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Indexed: 01/28/2023]
Abstract
During the total chemical synthesis of the water-soluble globular Haemophilus Influenzae DNA ligase (Hin-Lig), we observed the surprising phenomenon of a soluble peptide segment that failed to undergo native chemical ligation. Based on dynamic light scattering and transmission electron microscopy experiments, we determined that the peptide formed soluble colloidal particles in a homogeneous solution containing 6 m guanidine hydrochloride. Conventional peptide performance-improving strategies, such as installation of a terminal/side-chain Arg tag or O-acyl isopeptide, failed to enable the reaction, presumably because of their inability to disrupt the formation of soluble colloidal particles. However, a removable backbone modification strategy recently developed for the synthesis of membrane proteins did disrupt the formation of the colloids, and the desired ligation of this soluble but unreactive system was eventually accomplished. This work demonstrates that an appropriate solution dispersion state, in addition to good peptide solubility, is a prerequisite for successful peptide ligation.
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Affiliation(s)
- Baochang Zhang
- Tsinghua-Peking Joint Center for Life Sciences, Ministry of Education Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Center for Synthetic and Systems Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Qiang Deng
- School of Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Chong Zuo
- Tsinghua-Peking Joint Center for Life Sciences, Ministry of Education Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Center for Synthetic and Systems Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Bingjia Yan
- Tsinghua-Peking Joint Center for Life Sciences, Ministry of Education Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Center for Synthetic and Systems Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Chao Zuo
- Tsinghua-Peking Joint Center for Life Sciences, Ministry of Education Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Center for Synthetic and Systems Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Xiu-Xiu Cao
- School of Life Sciences, University of Science and Technology of China, and High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei, 230026, China
| | - Ting F Zhu
- School of Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Ji-Shen Zheng
- School of Life Sciences, University of Science and Technology of China, and High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei, 230026, China
| | - Lei Liu
- Tsinghua-Peking Joint Center for Life Sciences, Ministry of Education Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Center for Synthetic and Systems Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, China
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23
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Zhang B, Deng Q, Zuo C, Yan B, Zuo C, Cao X, Zhu TF, Zheng J, Liu L. Ligation of Soluble but Unreactive Peptide Segments in the Chemical Synthesis of
Haemophilus Influenzae
DNA Ligase. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201905149] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Baochang Zhang
- Tsinghua–Peking Joint Center for Life SciencesMinistry of Education Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical BiologyCenter for Synthetic and Systems BiologyDepartment of ChemistryTsinghua University Beijing 100084 China
| | - Qiang Deng
- School of Life SciencesTsinghua University Beijing 100084 China
| | - Chong Zuo
- Tsinghua–Peking Joint Center for Life SciencesMinistry of Education Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical BiologyCenter for Synthetic and Systems BiologyDepartment of ChemistryTsinghua University Beijing 100084 China
| | - Bingjia Yan
- Tsinghua–Peking Joint Center for Life SciencesMinistry of Education Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical BiologyCenter for Synthetic and Systems BiologyDepartment of ChemistryTsinghua University Beijing 100084 China
| | - Chao Zuo
- Tsinghua–Peking Joint Center for Life SciencesMinistry of Education Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical BiologyCenter for Synthetic and Systems BiologyDepartment of ChemistryTsinghua University Beijing 100084 China
| | - Xiu‐Xiu Cao
- School of Life SciencesUniversity of Science and Technology of China, and High Magnetic Field LaboratoryChinese Academy of Sciences Hefei 230026 China
| | - Ting F. Zhu
- School of Life SciencesTsinghua University Beijing 100084 China
| | - Ji‐Shen Zheng
- School of Life SciencesUniversity of Science and Technology of China, and High Magnetic Field LaboratoryChinese Academy of Sciences Hefei 230026 China
| | - Lei Liu
- Tsinghua–Peking Joint Center for Life SciencesMinistry of Education Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical BiologyCenter for Synthetic and Systems BiologyDepartment of ChemistryTsinghua University Beijing 100084 China
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24
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Agouridas V, El Mahdi O, Diemer V, Cargoët M, Monbaliu JCM, Melnyk O. Native Chemical Ligation and Extended Methods: Mechanisms, Catalysis, Scope, and Limitations. Chem Rev 2019; 119:7328-7443. [DOI: 10.1021/acs.chemrev.8b00712] [Citation(s) in RCA: 243] [Impact Index Per Article: 48.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Vangelis Agouridas
- UMR CNRS 8204, Centre d’Immunité et d’Infection de Lille, University of Lille, CNRS, Institut Pasteur de Lille, F-59000 Lille, France
| | - Ouafâa El Mahdi
- Faculté Polydisciplinaire de Taza, University Sidi Mohamed Ben Abdellah, BP 1223 Taza Gare, Morocco
| | - Vincent Diemer
- UMR CNRS 8204, Centre d’Immunité et d’Infection de Lille, University of Lille, CNRS, Institut Pasteur de Lille, F-59000 Lille, France
| | - Marine Cargoët
- UMR CNRS 8204, Centre d’Immunité et d’Infection de Lille, University of Lille, CNRS, Institut Pasteur de Lille, F-59000 Lille, France
| | - Jean-Christophe M. Monbaliu
- Center for Integrated Technology and Organic Synthesis, Department of Chemistry, University of Liège, Building B6a, Room 3/16a, Sart-Tilman, B-4000 Liège, Belgium
| | - Oleg Melnyk
- UMR CNRS 8204, Centre d’Immunité et d’Infection de Lille, University of Lille, CNRS, Institut Pasteur de Lille, F-59000 Lille, France
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25
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Schmidt M, Huang YH, Texeira de Oliveira EF, Toplak A, Wijma HJ, Janssen DB, van Maarseveen JH, Craik DJ, Nuijens T. Efficient Enzymatic Cyclization of Disulfide-Rich Peptides by Using Peptide Ligases. Chembiochem 2019; 20:1524-1529. [PMID: 30735312 DOI: 10.1002/cbic.201900033] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Indexed: 12/18/2022]
Abstract
Disulfide-rich macrocyclic peptides-cyclotides, for example-represent a promising class of molecules with potential therapeutic use. Despite their potential their efficient synthesis at large scale still represents a major challenge. Here we report new chemoenzymatic strategies using peptide ligase variants-inter alia, omniligase-1-for the efficient and scalable one-pot cyclization and folding of the native cyclotides MCoTI-II, kalata B1 and variants thereof, as well as of the θ-defensin RTD-1. The synthesis of the kB1 variant T20K was successfully demonstrated at multi-gram scale. The existence of several ligation sites for each macrocycle makes this approach highly flexible and facilitates both the larger-scale manufacture and the engineering of bioactive, grafted cyclotide variants, therefore clearly offering a valuable and powerful extension of the existing toolbox of enzymes for peptide head-to-tail cyclization.
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Affiliation(s)
- Marcel Schmidt
- EnzyPep B.V., Brightlands Campus, Urmonderbaan 22, 6167 RD, Geleen, The Netherlands.,Van 't Hoff Institute for Molecular Sciences (HIMS), University of Amsterdam, Science Park 904, 1098 XH, Amsterdam, The Netherlands
| | - Yen-Hua Huang
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Queensland, 4072, Australia
| | - Eduardo F Texeira de Oliveira
- Groningen Biomolecular Science and Biotechnology Institute, University of Groningen, Nijenborgh 4, 9747 AG, Groningen, The Netherlands
| | - Ana Toplak
- EnzyPep B.V., Brightlands Campus, Urmonderbaan 22, 6167 RD, Geleen, The Netherlands
| | - Hein J Wijma
- Groningen Biomolecular Science and Biotechnology Institute, University of Groningen, Nijenborgh 4, 9747 AG, Groningen, The Netherlands
| | - Dick B Janssen
- Groningen Biomolecular Science and Biotechnology Institute, University of Groningen, Nijenborgh 4, 9747 AG, Groningen, The Netherlands
| | - Jan H van Maarseveen
- Van 't Hoff Institute for Molecular Sciences (HIMS), University of Amsterdam, Science Park 904, 1098 XH, Amsterdam, The Netherlands
| | - David J Craik
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Queensland, 4072, Australia
| | - Timo Nuijens
- EnzyPep B.V., Brightlands Campus, Urmonderbaan 22, 6167 RD, Geleen, The Netherlands
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26
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Penteado F, Lopes EF, Alves D, Perin G, Jacob RG, Lenardão EJ. α-Keto Acids: Acylating Agents in Organic Synthesis. Chem Rev 2019; 119:7113-7278. [DOI: 10.1021/acs.chemrev.8b00782] [Citation(s) in RCA: 111] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Filipe Penteado
- Laboratório de Síntese Orgânica Limpa - LASOL - CCQFA - Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Eric F. Lopes
- Laboratório de Síntese Orgânica Limpa - LASOL - CCQFA - Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Diego Alves
- Laboratório de Síntese Orgânica Limpa - LASOL - CCQFA - Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Gelson Perin
- Laboratório de Síntese Orgânica Limpa - LASOL - CCQFA - Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Raquel G. Jacob
- Laboratório de Síntese Orgânica Limpa - LASOL - CCQFA - Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Eder J. Lenardão
- Laboratório de Síntese Orgânica Limpa - LASOL - CCQFA - Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
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27
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Asahina Y, Kawakami T, Hojo H. Glycopeptide Synthesis Based on a TFA-Labile Protection Strategy and One-Pot Four-Segment Ligation for the Synthesis of O-Glycosylated Histone H2A. European J Org Chem 2019. [DOI: 10.1002/ejoc.201801885] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yuya Asahina
- Institute for Protein Research; Osaka University; Yamadaoka 3-2, Suita Osaka 565-0871 Japan
| | - Toru Kawakami
- Institute for Protein Research; Osaka University; Yamadaoka 3-2, Suita Osaka 565-0871 Japan
| | - Hironobu Hojo
- Institute for Protein Research; Osaka University; Yamadaoka 3-2, Suita Osaka 565-0871 Japan
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28
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Total chemical synthesis by native chemical ligation of the all-D immunoglobulin-like domain 2 of Axl. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.01.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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29
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Abstract
Sortase A (SrtA) is an enzyme obtained from Staphylococcus aureus that catalyzes site-specific transpeptidation of surface proteins to the bacterial cell membrane. SrtA recognizes an LPXTG amino acid motif and cleaves between the Thr and Gly to form a thioester-linked acyl-enzyme intermediate. The intermediate is resolved in the presence of a nucleophilic N-terminal polyglycine resulting in ligation of the acyl donor to the polyglycine acceptor. Here we describe the application of SrtA as a tool for the cyclization of disulfide-rich peptides. Reactions are typically tailored to each disulfide-rich peptide with optimal conditions producing yields of 40-50% cyclized peptide.
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Affiliation(s)
- Akello J Agwa
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD, Australia
| | - David J Craik
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD, Australia.
| | - Christina I Schroeder
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD, Australia.
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30
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Abenante L, Penteado F, Vieira MM, Perin G, Alves D, Lenardão EJ. Ultrasound-enhanced Ag-catalyzed decarboxylative coupling between α-keto acids and disulfides for the synthesis of thioesters. ULTRASONICS SONOCHEMISTRY 2018; 49:41-46. [PMID: 30060985 DOI: 10.1016/j.ultsonch.2018.07.014] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 07/09/2018] [Accepted: 07/11/2018] [Indexed: 05/14/2023]
Abstract
Herein, we described the ultrasound-assisted synthesis of thioesters via the Ag-catalyzed radical oxidative decarboxylation of α-keto acids, in the presence of disulfides. This protocol takes advantage of the sonication to prepare the title compounds in moderate to very good yields, in only 20 min of reaction. The positive effect of ultrasonic irradiation is attributed to both, the high mass transfer efficiency and to the induced radical formation in the reaction medium.
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Affiliation(s)
- Laura Abenante
- Laboratório de Síntese Orgânica Limpa - LASOL, CCQFA - Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Filipe Penteado
- Laboratório de Síntese Orgânica Limpa - LASOL, CCQFA - Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Marcelo M Vieira
- Laboratório de Síntese Orgânica Limpa - LASOL, CCQFA - Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Gelson Perin
- Laboratório de Síntese Orgânica Limpa - LASOL, CCQFA - Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Diego Alves
- Laboratório de Síntese Orgânica Limpa - LASOL, CCQFA - Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil
| | - Eder J Lenardão
- Laboratório de Síntese Orgânica Limpa - LASOL, CCQFA - Universidade Federal de Pelotas - UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil.
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31
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Rink WM, Thomas F. Decoration of Coiled-Coil Peptides with N-Cysteine Peptide Thioesters As Cyclic Peptide Precursors Using Copper-Catalyzed Azide-Alkyne Cycloaddition (CuAAC) Click Reaction. Org Lett 2018; 20:7493-7497. [PMID: 30407016 DOI: 10.1021/acs.orglett.8b03261] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The development of a copper-catalyzed azide-alkyne cycloaddition (CuAAC) protocol for the decoration of coiled coils with N-cysteine peptide thioesters as cyclic peptide precursors is presented. The reaction conditions include tert-butanol/PBS as the solvent and CuSO4/THPTA/ascorbate as the catalytic system. During these studies, partial formylation of N-terminal cysteine peptides is observed. Mechanistic analysis leads to identification of the formyl source and, hence, to the development of reaction conditions, under which the undesired side reaction was suppressed.
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Affiliation(s)
- W Mathis Rink
- Institute of Organic and Biomolecular Chemistry, Georg-August Universität Göttingen , Tammannstraße 2 , 37077 Göttingen , Germany
| | - Franziska Thomas
- Institute of Organic and Biomolecular Chemistry, Georg-August Universität Göttingen , Tammannstraße 2 , 37077 Göttingen , Germany.,Center for Biostructural Imaging of Neurodegeneration , von-Siebold-Straße 3a , 37075 Göttingen , Germany
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32
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Sereikaitė V, Jensen TMT, Bartling CRO, Jemth P, Pless SA, Strømgaard K. Probing Backbone Hydrogen Bonds in Proteins by Amide-to-Ester Mutations. Chembiochem 2018; 19:2136-2145. [PMID: 30073762 DOI: 10.1002/cbic.201800350] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Indexed: 01/09/2023]
Abstract
All proteins contain characteristic backbones formed of consecutive amide bonds, which can engage in hydrogen bonds. However, the importance of these is not easily addressed by conventional technologies that only allow for side-chain substitutions. By contrast, technologies such as nonsense suppression mutagenesis and protein ligation allow for manipulation of the protein backbone. In particular, replacing the backbone amide groups with ester groups, that is, amide-to-ester mutations, is a powerful tool to examine backbone-mediated hydrogen bonds. In this minireview, we showcase examples of how amide-to-ester mutations can be used to uncover pivotal roles of backbone-mediated hydrogen bonds in protein recognition, folding, function, and structure.
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Affiliation(s)
- Vita Sereikaitė
- Center for Biopharmaceuticals, Department of Drug Design and Pharmacology, University of Copenhagen, Universitetsparken 2, 2200, Copenhagen, Denmark
| | - Thomas M T Jensen
- Center for Biopharmaceuticals, Department of Drug Design and Pharmacology, University of Copenhagen, Universitetsparken 2, 2200, Copenhagen, Denmark
| | - Christian R O Bartling
- Center for Biopharmaceuticals, Department of Drug Design and Pharmacology, University of Copenhagen, Universitetsparken 2, 2200, Copenhagen, Denmark
| | - Per Jemth
- Department of Medical Biochemistry and Microbiology, Uppsala University, BMC, Box 582, 75123, Uppsala, Sweden
| | - Stephan A Pless
- Center for Biopharmaceuticals, Department of Drug Design and Pharmacology, University of Copenhagen, Universitetsparken 2, 2200, Copenhagen, Denmark
| | - Kristian Strømgaard
- Center for Biopharmaceuticals, Department of Drug Design and Pharmacology, University of Copenhagen, Universitetsparken 2, 2200, Copenhagen, Denmark
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Jian C, Zhang P, Ma J, Jian S, Zhang Q, Liu B, Liang S, Liu M, Zeng Y, Liu Z. The Roles of Fatty-Acid Modification in the Activity of the Anticancer Peptide R-Lycosin-I. Mol Pharm 2018; 15:4612-4620. [DOI: 10.1021/acs.molpharmaceut.8b00605] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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34
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Total synthesis of snake toxin α-bungarotoxin and its analogues by hydrazide-based native chemical ligation. CHINESE CHEM LETT 2018. [DOI: 10.1016/j.cclet.2018.05.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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35
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Ohara T, Kaneda M, Saito T, Fujii N, Ohno H, Oishi S. Head-to-tail macrocyclization of cysteine-free peptides using an o -aminoanilide linker. Bioorg Med Chem Lett 2018; 28:1283-1286. [DOI: 10.1016/j.bmcl.2018.03.027] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Revised: 03/06/2018] [Accepted: 03/11/2018] [Indexed: 11/28/2022]
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37
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Martinez G, Hograindleur JP, Voisin S, Abi Nahed R, Abd El Aziz TM, Escoffier J, Bessonnat J, Fovet CM, De Waard M, Hennebicq S, Aucagne V, Ray PF, Schmitt E, Bulet P, Arnoult C. Spermaurin, an La1-like peptide from the venom of the scorpion Scorpio maurus palmatus, improves sperm motility and fertilization in different mammalian species. Mol Hum Reprod 2018; 23:116-131. [PMID: 27932550 DOI: 10.1093/molehr/gaw075] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Accepted: 11/18/2016] [Indexed: 11/12/2022] Open
Abstract
STUDY QUESTION Is it possible to identify original compounds that are able to enhance sperm motility from the venom of the scorpion Scorpio maurus palmatus? SUMMARY ANSWER We identified a potent disulfide-rich peptide (DRP) of 73 amino acids that significantly improved the motility of fresh and frozen-thawed sperm in different mammalian species, including human, and improved fertilization outcome in mouse IVF experiments. WHAT IS KNOWN ALREADY Any disturbance of sperm motility has a strong impact on fertilization and can lead to subfertility or infertility. Significant efforts have, therefore, been made to identify pharmacological drugs that might improve sperm motility. Such compounds are particularly useful in azoospermia to improve testicular sperm extraction and in the domain of cryopreservation because the motility of frozen-thawed sperm is reduced. STUDY DESIGN, SIZE, DURATION This was a basic science/medical research study aimed at identifying original compounds from a library of venoms able to enhance mammalian sperm motility, including human. We first identified in the venom of a scorpion S. m. palmatus a fraction able to potently activate sperm motility. We next purified and characterized the compound by liquid chromatography, mass spectrometry and peptide synthesis. Finally, the potency and toxicity of both purified and synthetic versions of the identified compound on sperm motility were assessed using different in vitro tests in different mammalian species. PARTICIPANTS/MATERIALS, SETTING, METHODS For human sperm, biological samples were collected from normozoospermic donors and subfertile patients attending a reproduction department for diagnostic semen analysis. Testicular sperm was collected from cynomolgus monkeys (Macaca fascicularis) euthanized for the needs of specific authorized research projects. The peptide was also tested on bovine and mouse epidydimal sperm. We measured different sperm motility parameters with a computer-assisted sperm analysis system in the presence or absence of the peptide. MAIN RESULTS AND THE ROLE OF CHANCE Size exclusion chromatography enabled us to isolate a fraction of the venom of S. m. palmatus able to increase sperm motility. By liquid chromatography and mass spectrometry, a peptide comprising 73 amino acids with 4 disulfide bridges was identified as responsible for the biological activity and called 'spermaurin'. The identity of spermaurin was confirmed by chemical synthesis. We showed that the peptide increased the motility of fresh and frozen-thawed human sperm. We observed that the potency of the peptide was higher on fresh ejaculated spermatozoa with a low motility, achieving a 100% increase of curvilinear velocity in poorly performing sperm. We also demonstrated that peptide is effective on bovine and mouse fresh epididymal, bovine frozen-thawed ejaculated and fresh non-human primate testicular sperm. Finally, in mouse IVF, the production of 2-cell embryos was increased by 24% when sperm were treated with the peptide. LIMITATIONS, REASONS FOR CAUTION This work is an in vitro evaluation of the ability of spermaurin to improve sperm motility parameters. Another limitation of this study is the small number of human sperm samples tested with the natural (n = 36) and synthetic (n = 12) peptides. Moreover, the effect of the peptide on IVF outcome was only tested in mouse and further tests with human and bovine gametes are required to confirm and extend this result in other mammalian species. WIDER IMPLICATIONS OF THE FINDINGS This work confirms our initial study showing that venoms represent an interesting source of molecules that are able to modify sperm physiology. Moreover, this work presents the first demonstrated biological action of a venom peptide from the scorpion S. m. palmatus with sequence similarities to La1 peptide from Liocheles australasiae (Wood scorpion), a widespread family of DRPs. LARGE SCALE DATA Not applicable. STUDY FUNDING/COMPETING INTEREST(S) This work is part of the project 'LAB COM-14 LAB7 0004 01-LIPAV', funded by the program LabCom 2014 from the French Research Agency (ANR). Dr Arnoult reports grants from IMV Technologies during the conduct of the study. In addition, Drs Arnoult, Martinez, Ray and Schmitt have a patent EP16305642.7 pending containing some of the information presented in this manuscript.
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Affiliation(s)
- Guillaume Martinez
- IMV Technologies, ZI N° 1 Est, F-61300 L'Aigle, France.,Université Grenoble Alpes, Grenoble F-38000, France.,Institute for Advanced Biosciences INSERM U1209, CNRS UMR5309, Grenoble F-38000, France
| | - Jean-Pascal Hograindleur
- Université Grenoble Alpes, Grenoble F-38000, France.,Institute for Advanced Biosciences INSERM U1209, CNRS UMR5309, Grenoble F-38000, France
| | - Sébastien Voisin
- Plateforme BioPark d'Archamps, Archamps Technopole, Saint Julien en Genevois F-74160, France
| | - Roland Abi Nahed
- Université Grenoble Alpes, Grenoble F-38000, France.,Institute for Advanced Biosciences INSERM U1209, CNRS UMR5309, Grenoble F-38000, France
| | - Tarek M Abd El Aziz
- L'institut du thorax, Inserm UMR 1087/CNRS UMR 6291, Université de Nantes, NantesF44007, France
| | - Jessica Escoffier
- Université Grenoble Alpes, Grenoble F-38000, France.,Institute for Advanced Biosciences INSERM U1209, CNRS UMR5309, Grenoble F-38000, France
| | - Julien Bessonnat
- Université Grenoble Alpes, Grenoble F-38000, France.,Institute for Advanced Biosciences INSERM U1209, CNRS UMR5309, Grenoble F-38000, France.,CHU Grenoble Alpes, UF de Biologie de la procréation, Grenoble F-38000, France
| | - Claire-Maëlle Fovet
- Molecular Imaging Research Center, MIRCen CEA/INSERM UMR1169, Fontenay-aux-Roses F-92265, France
| | - Michel De Waard
- L'institut du thorax, Inserm UMR 1087/CNRS UMR 6291, Université de Nantes, NantesF44007, France
| | - Sylviane Hennebicq
- Université Grenoble Alpes, Grenoble F-38000, France.,Institute for Advanced Biosciences INSERM U1209, CNRS UMR5309, Grenoble F-38000, France.,CHU Grenoble Alpes, UF de Biologie de la procréation, Grenoble F-38000, France
| | - Vincent Aucagne
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Orléans F-45071, France
| | - Pierre F Ray
- Université Grenoble Alpes, Grenoble F-38000, France.,Institute for Advanced Biosciences INSERM U1209, CNRS UMR5309, Grenoble F-38000, France.,CHU Grenoble Alpes, UF de Biochimie Génétique et Moléculaire, Grenoble F-38000, France
| | - Eric Schmitt
- IMV Technologies, ZI N° 1 Est, F-61300 L'Aigle, France
| | - Philippe Bulet
- Université Grenoble Alpes, Grenoble F-38000, France.,Institute for Advanced Biosciences INSERM U1209, CNRS UMR5309, Grenoble F-38000, France.,Plateforme BioPark d'Archamps, Archamps Technopole, Saint Julien en Genevois F-74160, France
| | - Christophe Arnoult
- Université Grenoble Alpes, Grenoble F-38000, France.,Institute for Advanced Biosciences INSERM U1209, CNRS UMR5309, Grenoble F-38000, France
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38
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Gopinath P, Ohayon S, Nawatha M, Brik A. Chemical and semisynthetic approaches to study and target deubiquitinases. Chem Soc Rev 2018; 45:4171-98. [PMID: 27049734 DOI: 10.1039/c6cs00083e] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Ubiquitination is a key posttranslational modification, which affects numerous biological processes and is reversed by a class of enzymes known as deubiquitinases (DUBs). This family of enzymes cleaves mono-ubiquitin or poly-ubiquitin chains from a target protein through different mechanisms and mode of interactions with their substrates. Studying the role of DUBs in health and diseases has been a major goal for many laboratories both in academia and in industry. However, the field has been challenged by the difficulties in obtaining native substrates and novel reagents using traditional enzymatic and molecular biology approaches. Recent advancements in the synthesis and semisynthesis of proteins made it possible to prepare several unique ubiquitin conjugates to study various aspects of DUBs such as their specificities and structures. Moreover, these approaches enable the preparation of novel activity based probes and assays to monitor DUB activities in vitro and in cellular contexts. Efforts made to bring new chemical entities for the selective inhibition of DUBs based on these tools are also highlighted with selected examples.
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Affiliation(s)
- Pushparathinam Gopinath
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology Haifa, 3200008, Israel.
| | - Shimrit Ohayon
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology Haifa, 3200008, Israel.
| | - Mickal Nawatha
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology Haifa, 3200008, Israel.
| | - Ashraf Brik
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology Haifa, 3200008, Israel.
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39
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Otaka A, Shigenaga A. Protein Synthetic Chemistry Inspired by Intein-mediated Protein Splicing. J SYN ORG CHEM JPN 2018. [DOI: 10.5059/yukigoseikyokaishi.76.45] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Akira Otaka
- Institutes of Biomedical Sciences and Graduate School of Pharmaceutical Sciences, Tokushima University
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40
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Selvaraj A, Chen HT, Ya-Ting Huang A, Kao CL. Expedient on-resin modification of a peptide C-terminus through a benzotriazole linker. Chem Sci 2017; 9:345-349. [PMID: 29629103 PMCID: PMC5868309 DOI: 10.1039/c7sc03229c] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Accepted: 10/29/2017] [Indexed: 12/28/2022] Open
Abstract
Peptides with various C-terminal functionalization, including peptides and dendrimers, were prepared via SPPS and an efficient on-resin modification.
A convenient and efficient chemical toolbox was developed for the on-resin C-terminal functionalization of various peptides. By transforming resin-bound 3,4-diaminobenzoic acid species with isoamyl nitrite, the resulting resin-bound benzotriazole entity can be efficiently displaced by nucleophiles during cleavage of the peptide–resin connection in a short reaction time. The resin cleavage step allowed for the use of various nucleophiles including water, EtOH, amines, thiol, and G5 poly(amidoamino) dendrimers with yields ranging from 66% to 82% within 5 h. This method was successfully applied to prepare the elastin sequence (VPGVG)4 through on-resin ligation in 77% yield in one day and a head-to-tail cyclic peptide, sunflower trypsin inhibitor-1, in 42% yield.
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Affiliation(s)
- Anand Selvaraj
- Department of Medicinal and Applied Chemistry , Kaohsiung Medical University , Kaohsiung 807 , Taiwan .
| | - Hui-Ting Chen
- Department of Fragrance and Cosmetic Science , Kaohsiung Medical University , Kaohsiung 807 , Taiwan.,Department of Medical Research , Kaohsiung Medical University Hospital , Kaohsiung 807 , Taiwan
| | - Adela Ya-Ting Huang
- Department of Medicinal and Applied Chemistry , Kaohsiung Medical University , Kaohsiung 807 , Taiwan .
| | - Chai-Lin Kao
- Department of Medicinal and Applied Chemistry , Kaohsiung Medical University , Kaohsiung 807 , Taiwan . .,Department of Medical Research , Kaohsiung Medical University Hospital , Kaohsiung 807 , Taiwan.,Department of Chemistry , National Sun Yat-sen University , Kaohsiung 80424 , Taiwan
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41
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Petszulat H, Seitz O. A fluorogenic native chemical ligation for assessing the role of distance in peptide-templated peptide ligation. Bioorg Med Chem 2017; 25:5022-5030. [PMID: 28823838 DOI: 10.1016/j.bmc.2017.08.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Revised: 07/19/2017] [Accepted: 08/06/2017] [Indexed: 12/11/2022]
Abstract
Protein-templated reactions have been used for fragment-based drug discovery as well as for covalent labeling, detection and manipulation of proteins. In spite of the growing interest in protein-templated reactions, little is known about the design criteria. Herein we present a systematic study on the effects of proximity in peptide-templated reactions. To facilitate reaction monitoring at low concentrations we developed a fluorogenic native chemical ligation that is based on the integration of a fluorescence quencher in the thiol leaving group. The reaction system provided up to 39-fold increases of emission from a fluorescein unit. By using templates based on coiled coils as models we investigated the effect of misalignments. The distance-reactivity pattern for remotely aligned peptides was remarkably different to reaction scenarios that involved seamlessly annealed peptides with overhanging functional groups.
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Affiliation(s)
- Henrik Petszulat
- Humboldt-Universität zu Berlin, Institut für Chemie, Brook-Taylor-Str. 2, 12489 Berlin, Germany
| | - Oliver Seitz
- Humboldt-Universität zu Berlin, Institut für Chemie, Brook-Taylor-Str. 2, 12489 Berlin, Germany.
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42
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Yang J, Zhao J. Recent developments in peptide ligation independent of amino acid side-chain functional group. Sci China Chem 2017. [DOI: 10.1007/s11426-017-9056-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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43
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Thapa P, Cabalteja CC, Philips EE, Espiritu MJ, Peigneur S, Mille BG, Tytgat J, Cummins TR, Bingham JP. t-boc synthesis of huwentoxin-i through native chemical ligation incorporating a trifluoromethanesulfonic acid cleavage strategy. Biopolymers 2017; 106:737-45. [PMID: 27271997 DOI: 10.1002/bip.22887] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Revised: 05/24/2016] [Accepted: 05/31/2016] [Indexed: 11/10/2022]
Abstract
Tert-butyloxycarbonyl (t-Boc)-based native chemical ligation (NCL) techniques commonly employ hydrogen fluoride (HF) to create the thioester fragment required for the ligation process. Our research aimed to assess the replacement of HF with Trifluoromethanesulfonic acid (TFMSA). Here we examined a 33 amino acid test peptide, Huwentoxin-I (HwTx-I) as a novel candidate for our TFMSA cleavage protocol. Structurally HwTx-I has an X-Cys(16) -Cys(17) -X sequence mid-region, which makes it an ideal candidate for NCL. Experiments determined that the best yields (16.8%) obtained for 50 mg of a thioester support resin were achieved with a TFMSA volume of 100 μL with a 0.5-h incubation on ice, followed by 2.0 h at room temperature. RP-HPLC/UV and mass spectra indicated the appropriate parent mass and retention of the cleaved HwTx-I N-terminal thioester fragment (Ala(1) -Cys(16) ), which was used in preparation for NCL. The resulting chemically ligated HwTx-I was oxidized/folded, purified, and then assessed for pharmacological target selectivity. Native-like HwTx-I produced by this method yielded an EC50 value of 340.5 ± 26.8 nM for Nav 1.2 and an EC50 value of 504.1 ± 81.3 nM for Nav 1.3, this being similar to previous literature results using native material. This article represents the first NCL based synthesis of this potent sodium channel blocker. Our illustrated approach removes potential restrictions in the advancement of NCL as a common peptide laboratory technique with minimal investment, and removes the hazards associated with HF usage. © 2016 Wiley Periodicals, Inc. Biopolymers (Pept Sci) 106: 737-745, 2016.
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Affiliation(s)
- Parashar Thapa
- Department of Molecular Biosciences and Bioengineering, College of Tropical Agriculture and Human Resources, University of Hawaii, Honolulu, HI, 96822
| | - Chino C Cabalteja
- Department of Molecular Biosciences and Bioengineering, College of Tropical Agriculture and Human Resources, University of Hawaii, Honolulu, HI, 96822
| | - Edwin E Philips
- Department of Molecular Biosciences and Bioengineering, College of Tropical Agriculture and Human Resources, University of Hawaii, Honolulu, HI, 96822
| | - Michael J Espiritu
- Department of Molecular Biosciences and Bioengineering, College of Tropical Agriculture and Human Resources, University of Hawaii, Honolulu, HI, 96822
| | - Steve Peigneur
- Department of Toxicology and Pharmacology, University of Leuven (KU Leuven), Campus Gasthuisberg O&N II, Leuven, 3000, Belgium
| | - Bea G Mille
- Department of Toxicology and Pharmacology, University of Leuven (KU Leuven), Campus Gasthuisberg O&N II, Leuven, 3000, Belgium
| | - Jan Tytgat
- Department of Toxicology and Pharmacology, University of Leuven (KU Leuven), Campus Gasthuisberg O&N II, Leuven, 3000, Belgium
| | - Theodore R Cummins
- Department of Pharmacology and Toxicology, Indiana University, Indianapolis, IN.,Department of Pharmacology and Toxicology, Stark Neurosciences Research Institute, 320 West 25th Street, NB-414F, Indianapolis, IN, 46202-2266
| | - Jon-Paul Bingham
- Department of Molecular Biosciences and Bioengineering, College of Tropical Agriculture and Human Resources, University of Hawaii, Honolulu, HI, 96822.
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44
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Miyajima R, Tsuda Y, Inokuma T, Shigenaga A, Imanishi M, Futaki S, Otaka A. Preparation of peptide thioesters from naturally occurring sequences using reaction sequence consisting of regioselective S-cyanylation and hydrazinolysis. Biopolymers 2017; 106:531-46. [PMID: 26501985 DOI: 10.1002/bip.22757] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Revised: 10/16/2015] [Accepted: 10/18/2015] [Indexed: 12/19/2022]
Abstract
The vital roles of peptide/protein thioesters in protein chemistry, including chemical or semi-synthesis of proteins, have encouraged studies on the development of methods for the preparation of such chemical units. Biochemical protocols using intein or sortase have proved to be useful in protein chemistry as methods suitable for naturally occurring sequences, including recombinant proteins. Although chemical protocols are potential options for thioester preparation, only a few are applicable to naturally occurring sequences, because standard chemical protocols require an artificial chemical device for producing thioesters. In this context, the chemical preparation of thioesters based on a reaction sequence consisting of regioselective S-cyanylation and hydrazinolysis was investigated. Regioselective S-cyanylation, which is required for cysteine-containing thioesters, was achieved with the aid of a zinc-complex formation of a CCHH-type zinc-finger sequence. Free cysteine residues that are not involved in complex formation were selectively protected with a 6-nitroveratryl group followed by S-cyanylation of the zinc-binding cysteine. Hydrazinolysis of the resulting S-cyanopeptide and subsequent photo-removal of the 6-nitroveratryl group yielded the desired peptide hydrazide, which was then converted to the corresponding thioester. The generated thioester was successfully used in N-to-C-directed one-pot/sequential native chemical ligation using an N-sulfanylethylanilide peptide to give a 64-residue peptide toxin. © 2015 Wiley Periodicals, Inc. Biopolymers (Pept Sci) 106: 531-546, 2016.
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Affiliation(s)
- Rin Miyajima
- Institute of Biomedical Sciences and Graduate School of Pharmaceutical Sciences, Tokushima University, Tokushima, 770-8505, Japan
| | - Yusuke Tsuda
- Institute of Biomedical Sciences and Graduate School of Pharmaceutical Sciences, Tokushima University, Tokushima, 770-8505, Japan
| | - Tsubasa Inokuma
- Institute of Biomedical Sciences and Graduate School of Pharmaceutical Sciences, Tokushima University, Tokushima, 770-8505, Japan
| | - Akira Shigenaga
- Institute of Biomedical Sciences and Graduate School of Pharmaceutical Sciences, Tokushima University, Tokushima, 770-8505, Japan
| | - Miki Imanishi
- Institute for Chemical Research, Kyoto University, Kyoto, 611-0011, Japan
| | - Shiroh Futaki
- Institute for Chemical Research, Kyoto University, Kyoto, 611-0011, Japan
| | - Akira Otaka
- Institute of Biomedical Sciences and Graduate School of Pharmaceutical Sciences, Tokushima University, Tokushima, 770-8505, Japan
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45
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Zhang P, Ma J, Yan Y, Chen B, Liu B, Jian C, Zhu B, Liang S, Zeng Y, Liu Z. Arginine modification of lycosin-I to improve inhibitory activity against cancer cells. Org Biomol Chem 2017; 15:9379-9388. [DOI: 10.1039/c7ob02233f] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Herein, arginine modification rendered Lycosin-I with higher anticancer activity, penetrability, and dissemination ability against solid tumor cells due to the optimized physicochemical properties and high serum stability.
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46
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Terrier VP, Delmas AF, Aucagne V. Efficient synthesis of cysteine-rich cyclic peptides through intramolecular native chemical ligation of N-Hnb-Cys peptide crypto-thioesters. Org Biomol Chem 2017; 15:316-319. [DOI: 10.1039/c6ob02546c] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
We herein introduce a straightforward synthetic route to cysteine-containing cyclic peptides. It is based on the intramolecular native chemical ligation of thioesters generated in situ from N-Hnb-Cys crypto-thioesters. The strategy is applied to a representative range of natural cyclic disulfide-rich peptide sequences.
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Affiliation(s)
- Victor P. Terrier
- Centre de Biophysique Moléculaire
- CNRS UPR 4301
- 45071 Orléans Cedex 2
- France
| | - Agnès F. Delmas
- Centre de Biophysique Moléculaire
- CNRS UPR 4301
- 45071 Orléans Cedex 2
- France
| | - Vincent Aucagne
- Centre de Biophysique Moléculaire
- CNRS UPR 4301
- 45071 Orléans Cedex 2
- France
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47
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Recent advances in the preparation of Fmoc-SPPS-based peptide thioester and its surrogates for NCL-type reactions. Sci China Chem 2016. [DOI: 10.1007/s11426-016-0381-1] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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48
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Hansen J, Diness F, Meldal M. C-Terminally modified peptides via cleavage of the HMBA linker by O-, N- or S-nucleophiles. Org Biomol Chem 2016; 14:3238-45. [PMID: 26924021 DOI: 10.1039/c6ob00213g] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A large variety of C-terminally modified peptides was obtained by nucleophilic cleavage of the ester bond in solid phase linked peptide esters of 4-hydroxymethyl benzamide (HMBA). The developed methods provided peptides, C-terminally functionalized as esters, amides and thioesters, with high purity directly from the resin in a single reaction step. A comprehensive screening of the reaction conditions and scope for nucleophilic cleavage of peptides from the HMBA linker was performed.
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Affiliation(s)
- J Hansen
- Center for Evolutionary Chemical Biology, Department of Chemistry University of Copenhagen, Universitetsparken 5, 2100 Copenhagen, Denmark.
| | - F Diness
- Center for Evolutionary Chemical Biology, Department of Chemistry University of Copenhagen, Universitetsparken 5, 2100 Copenhagen, Denmark.
| | - M Meldal
- Center for Evolutionary Chemical Biology, Department of Chemistry University of Copenhagen, Universitetsparken 5, 2100 Copenhagen, Denmark.
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49
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Kim BM. The C-Terminal O-S Acyl Shift Pathway under Acidic Condition to Propose Peptide-Thioesters. Molecules 2016; 21:E1559. [PMID: 27869694 PMCID: PMC6272864 DOI: 10.3390/molecules21111559] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Revised: 11/03/2016] [Accepted: 11/11/2016] [Indexed: 12/04/2022] Open
Abstract
Peptide-thioester is a pivotal intermediate for peptide ligation and N-, C-terminal cyclization. In this study, desired pathway and the side products of two C-terminal handles, hydroxyethylthiol (HET) and hydroxypropylthiol (HPT) are described in different conditions as well as kinetic studies. In addition, a new mechanism of C-terminal residue racemization is proposed on the basis of differentiation of products derived from the two C-terminal handles in preparing peptide thioesters through an acid-catalyzed tandem thiol switch, first by an intramolecular O-S acyl shift, and then by an intermolecular S-S exchange.
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Affiliation(s)
- Bo Mi Kim
- Division of Bio-Nanochemistry, Wonkwang University, Iksan 570-749, Korea.
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50
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Sakamoto K, Tsuda S, Mochizuki M, Nohara Y, Nishio H, Yoshiya T. Imidazole-Aided Native Chemical Ligation: Imidazole as a One-Pot Desulfurization-Amenable Non-Thiol-Type Alternative to 4-Mercaptophenylacetic Acid. Chemistry 2016; 22:17940-17944. [DOI: 10.1002/chem.201604320] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Ken Sakamoto
- Peptide Institute, Inc.; 7-2-9 Saito-Asagi, Ibaraki-shi Osaka 567-0085 Japan
| | - Shugo Tsuda
- Peptide Institute, Inc.; 7-2-9 Saito-Asagi, Ibaraki-shi Osaka 567-0085 Japan
| | - Masayoshi Mochizuki
- Peptide Institute, Inc.; 7-2-9 Saito-Asagi, Ibaraki-shi Osaka 567-0085 Japan
| | - Yukie Nohara
- Peptide Institute, Inc.; 7-2-9 Saito-Asagi, Ibaraki-shi Osaka 567-0085 Japan
| | - Hideki Nishio
- Peptide Institute, Inc.; 7-2-9 Saito-Asagi, Ibaraki-shi Osaka 567-0085 Japan
| | - Taku Yoshiya
- Peptide Institute, Inc.; 7-2-9 Saito-Asagi, Ibaraki-shi Osaka 567-0085 Japan
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