1
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Zheng FH, Cui ZH, Wang YX, Zhu WJ, Wei HM, Xue JH, Wan XC, Fang GM. Thiazolidine Deprotection Using an Organic Solvent Extractable Aldehyde Scavenger for One-Pot Four-Segment Ligation. Org Lett 2024; 26:7701-7706. [PMID: 39230191 DOI: 10.1021/acs.orglett.4c02816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/05/2024]
Abstract
We report a simple and convenient N-terminal thiazolidine (Thz) deprotection strategy and its application in one-pot multisegment ligation. In this strategy, O-benzylhydroxylamine (O-BHA) is used to efficiently and rapidly convert Thz into N-terminal cysteine. O-BHA can be easily separated from the ligation buffer by organic solvent extraction, avoiding the degradation of the peptide thioester by O-BHA. The utility of the O-BHA-based one-pot ligation strategy has been demonstrated in the assembly of CC chemokine ligand-2.
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Affiliation(s)
- Feng-Hao Zheng
- School of Life Science, Institutes of Physical Science and Information Technology, Anhui University, Hefei, 230601, P. R. China
| | - Zhi-Hui Cui
- School of Life Science, Institutes of Physical Science and Information Technology, Anhui University, Hefei, 230601, P. R. China
| | - Yu-Xuan Wang
- School of Life Science, Institutes of Physical Science and Information Technology, Anhui University, Hefei, 230601, P. R. China
| | - Wen-Jing Zhu
- School of Life Science, Institutes of Physical Science and Information Technology, Anhui University, Hefei, 230601, P. R. China
| | - Hui-Min Wei
- School of Life Science, Institutes of Physical Science and Information Technology, Anhui University, Hefei, 230601, P. R. China
| | - Jun-Hao Xue
- School of Life Science, Institutes of Physical Science and Information Technology, Anhui University, Hefei, 230601, P. R. China
| | - Xiao-Cui Wan
- School of Life Science, Institutes of Physical Science and Information Technology, Anhui University, Hefei, 230601, P. R. China
| | - Ge-Min Fang
- School of Life Science, Institutes of Physical Science and Information Technology, Anhui University, Hefei, 230601, P. R. China
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2
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Li YJ, Fang CB, Wang SS, Chen XQ, Li Y, Liu Q, Qi YK, Du SS. Design and synthesis of TH19P01-Camptothecin based hybrid peptides inducing effective anticancer responses on sortilin positive cancer cells. Bioorg Med Chem 2024; 111:117869. [PMID: 39126834 DOI: 10.1016/j.bmc.2024.117869] [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: 06/09/2024] [Revised: 08/02/2024] [Accepted: 08/02/2024] [Indexed: 08/12/2024]
Abstract
Recently, the sortilin receptor (SORT1) was found to be preferentially over-expressed on the surface of many cancer cells, which makes SORT1 a novel anticancer target. The SORT1 binding proprietary peptide TH19P01 could achieve the SORT1-mediated cancer cell binding and subsequent internalization. Inspired by the peptide-drug conjugate (PDC) strategy, the TH19P01-camptothecin (CPT) conjugates were designed, efficiently synthesized, and evaluated for their anticancer potential in this study. The water solubility, in vitro anticancer activity, time-kill kinetics, cellular uptake, anti-migration activity, and hemolysis effects were systematically estimated. Besides, in order to monitor the release of CPT from conjugates in real-time, the CPT/Dnp-based "turn on" hybrid peptide was designed, which indicted that CPT could be sustainably released from the hybrid peptide in both human serum and cancer cellular environments. Strikingly, compared with free CPT, the water solubility, cellular uptake, and selectivity towards cancer cells of hybrid peptide LYJ-2 have all been significantly enhanced. Moreover, unlike free CPT or TH19P01, LYJ-2 exhibited selective anti-proliferative and anti-migration effects against SORT1-positive MDA-MB-231 cells. Collectively, this study not only established efficient strategies to improve the solubility and anticancer potential of chemotherapeutic agent CPT, but also provided important references for the future development of TH19P01 based PDCs targeting SORT1.
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Affiliation(s)
- Ya-Jie Li
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Chang-Bo Fang
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Shu-Shu Wang
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao 266555, China
| | - Xin-Qi Chen
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Yantao Li
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Qing Liu
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Yun-Kun Qi
- Department of Natural Medicinal Chemistry and Pharmacognosy, School of Pharmacy, Qingdao University, #1 Ningde Road, Qingdao 266073, China.
| | - Shan-Shan Du
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
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3
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Ai H, Pan M, Liu L. Chemical Synthesis of Human Proteoforms and Application in Biomedicine. ACS CENTRAL SCIENCE 2024; 10:1442-1459. [PMID: 39220697 PMCID: PMC11363345 DOI: 10.1021/acscentsci.4c00642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 07/04/2024] [Accepted: 07/05/2024] [Indexed: 09/04/2024]
Abstract
Limited understanding of human proteoforms with complex posttranslational modifications and the underlying mechanisms poses a major obstacle to research on human health and disease. This Outlook discusses opportunities and challenges of de novo chemical protein synthesis in human proteoform studies. Our analysis suggests that to develop a comprehensive, robust, and cost-effective methodology for chemical synthesis of various human proteoforms, new chemistries of the following types need to be developed: (1) easy-to-use peptide ligation chemistries allowing more efficient de novo synthesis of protein structural domains, (2) robust temporary structural support strategies for ligation and folding of challenging targets, and (3) efficient transpeptidative protein domain-domain ligation methods for multidomain proteins. Our analysis also indicates that accurate chemical synthesis of human proteoforms can be applied to the following aspects of biomedical research: (1) dissection and reconstitution of the proteoform interaction networks, (2) structural mechanism elucidation and functional analysis of human proteoform complexes, and (3) development and evaluation of drugs targeting human proteoforms. Overall, we suggest that through integrating chemical protein synthesis with in vivo functional analysis, mechanistic biochemistry, and drug development, synthetic chemistry would play a pivotal role in human proteoform research and facilitate the development of precision diagnostics and therapeutics.
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Affiliation(s)
- Huasong Ai
- New
Cornerstone Science Laboratory, Tsinghua-Peking Joint Center for Life
Sciences, MOE Key Laboratory of Bioorganic Phosphorus Chemistry and
Chemical Biology, Center for Synthetic and Systems Biology, Department
of Chemistry, Tsinghua University, Beijing 100084, China
- Institute
of Translational Medicine, School of Pharmacy, School of Chemistry
and Chemical Engineering, National Center for Translational Medicine
(Shanghai), Shanghai Jiao Tong University, Shanghai 200240, China
| | - Man Pan
- Institute
of Translational Medicine, School of Pharmacy, School of Chemistry
and Chemical Engineering, National Center for Translational Medicine
(Shanghai), Shanghai Jiao Tong University, Shanghai 200240, China
| | - Lei Liu
- New
Cornerstone Science Laboratory, Tsinghua-Peking Joint Center for Life
Sciences, MOE 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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4
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Zhang YN, Wan XC, Tang Y, Chen Y, Zheng FH, Cui ZH, Zhang H, Zhou Z, Fang GM. Employing unnatural promiscuity of sortase to construct peptide macrocycle libraries for ligand discovery. Chem Sci 2024; 15:9649-9656. [PMID: 38939140 PMCID: PMC11206207 DOI: 10.1039/d4sc01992j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Accepted: 05/11/2024] [Indexed: 06/29/2024] Open
Abstract
With the increasing attention paid to macrocyclic scaffolds in peptide drug development, genetically encoded peptide macrocycle libraries have become invaluable sources for the discovery of high-affinity peptide ligands targeting disease-associated proteins. The traditional phage display technique of constructing disulfide-tethered macrocycles by cysteine oxidation has the inherent drawback of reduction instability of the disulfide bond. Chemical macrocyclization solves the problem of disulfide bond instability, but the involved highly electrophilic reagents are usually toxic to phages and may bring undesirable side reactions. Here, we report a unique Sortase-mediated Peptide Ligation and One-pot Cyclization strategy (SPLOC) to generate peptide macrocycle libraries, avoiding the undesired reactions of electrophiles with phages. The key to this platform is to mine the unnatural promiscuity of sortase on the X residue of the pentapeptide recognition sequence (LPXTG). Low reactive electrophiles are incorporated into the X-residue side chain, enabling intramolecular cyclization with the cysteine residue of the phage-displayed peptide library. Utilizing the genetically encoded peptide macrocycle library constructed by the SPLOC platform, we found a high-affinity bicyclic peptide binding TEAD4 with a nanomolar KD value (63.9 nM). Importantly, the binding affinity of the bicyclic peptide ligand is 102-fold lower than that of the acyclic analogue. To our knowledge, this is the first time to mine the unnatural promiscuity of ligases to generate peptide macrocycles, providing a new avenue for the construction of genetically encoded cyclic peptide libraries.
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Affiliation(s)
- Yan-Ni Zhang
- School of Life Sciences, Institutes of Physical Science and Information Technology, Anhui University Hefei 230601 P. R. China
| | - Xiao-Cui Wan
- School of Life Sciences, Institutes of Physical Science and Information Technology, Anhui University Hefei 230601 P. R. China
| | - Yang Tang
- Department of Medical Ultrasound, Department of Stomatology, Shanghai Tenth People's Hospital, Tongji University Cancer Center, Tongji University School of Medicine Shanghai 200072 P. R. China
| | - Ying Chen
- School of Life Sciences, Institutes of Physical Science and Information Technology, Anhui University Hefei 230601 P. R. China
| | - Feng-Hao Zheng
- School of Life Sciences, Institutes of Physical Science and Information Technology, Anhui University Hefei 230601 P. R. China
| | - Zhi-Hui Cui
- School of Life Sciences, Institutes of Physical Science and Information Technology, Anhui University Hefei 230601 P. R. China
| | - Hua Zhang
- School of Life Sciences, Institutes of Physical Science and Information Technology, Anhui University Hefei 230601 P. R. China
| | - Zhaocai Zhou
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Zhongshan Hospital, Fudan University Shanghai 200438 P. R. China
| | - Ge-Min Fang
- School of Life Sciences, Institutes of Physical Science and Information Technology, Anhui University Hefei 230601 P. R. China
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5
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Wan XC, Zhu WJ, Chen Y, Cui ZH, Zhang H, Zheng FH, Zhang YN, Fang GM. Thioproline-Based Oxidation Strategy for Direct Preparation of N-Terminal Thiazolidine-Containing Peptide Thioesters from Peptide Hydrazides. Org Lett 2024; 26:5021-5026. [PMID: 38842216 DOI: 10.1021/acs.orglett.4c01687] [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: 06/07/2024]
Abstract
We describe a simple and robust oxidation strategy for preparing N-terminal thiazolidine-containing peptide thioesters from peptide hydrazides. We find for the first time that l-thioproline can be used as a protective agent to prevent the nitrosation of N-terminal thiazolidine during peptide hydrazide oxidation. The thioproline-based oxidation strategy has been successfully applied to the chemical synthesis of CC chemokine ligand-2 (69aa) and omniligase-C (113aa), thereby demonstrating its utility in hydrazide-based native chemical ligation.
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Affiliation(s)
- Xiao-Cui Wan
- School of Life Science, Institutes of Physical Science and Information Technology, Anhui University, Hefei, 230601, P. R. China
| | - Wen-Jing Zhu
- School of Life Science, Institutes of Physical Science and Information Technology, Anhui University, Hefei, 230601, P. R. China
| | - Ying Chen
- School of Life Science, Institutes of Physical Science and Information Technology, Anhui University, Hefei, 230601, P. R. China
| | - Zhi-Hui Cui
- School of Life Science, Institutes of Physical Science and Information Technology, Anhui University, Hefei, 230601, P. R. China
| | - Hua Zhang
- School of Life Science, Institutes of Physical Science and Information Technology, Anhui University, Hefei, 230601, P. R. China
| | - Feng-Hao Zheng
- School of Life Science, Institutes of Physical Science and Information Technology, Anhui University, Hefei, 230601, P. R. China
| | - Yan-Ni Zhang
- School of Life Science, Institutes of Physical Science and Information Technology, Anhui University, Hefei, 230601, P. R. China
| | - Ge-Min Fang
- School of Life Science, Institutes of Physical Science and Information Technology, Anhui University, Hefei, 230601, P. R. China
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6
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Song M, Liu Q, Yao JF, Wang YT, Ma YN, Xu H, Yu QY, Li Z, Du SS, Qi YK. Synthesis and structural optimization of oncolytic peptide LTX-315. Bioorg Med Chem 2024; 107:117760. [PMID: 38762978 DOI: 10.1016/j.bmc.2024.117760] [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: 04/13/2024] [Revised: 05/07/2024] [Accepted: 05/13/2024] [Indexed: 05/21/2024]
Abstract
Oncolytic peptides represented potential novel candidates for anticancer treatments especially drug-resistant cancer cell lines. One of the most promising and extensively studied is LTX-315, which is considered as the first in class oncolytic peptide and has entered phase I/II clinical trials. Nevertheless, the shortcomings including poor proteolytic stability, moderate anticancer durability and high synthesis costs may hinder the widespread clinical applications of LTX-315. In order to reduce the synthesis costs, as well as develop derivatives possessing both high protease-stability and durable anticancer efficiency, twenty LTX-315-based derived-peptides were designed and efficiently synthesized. Especially, through solid-phase S-alkylation, as well as the optimized peptide cleavage condition, the derived peptides could be prepared with drastically reduced synthesis cost. The in vitro anticancer efficiency, serum stability, anticancer durability, anti-migration activity, and hemolysis effect were systematically investigated. It was found that derived peptide MS-13 exhibited comparable anticancer efficiency and durability to those of LTX-315. Strikingly, the D-type peptide MS-20, which is the enantiomer of MS-13, was demonstrated to possess significantly high proteolytic stability and sustained anticancer durability. In general, the cost-effective synthesis and stability-guided structural optimizations were conducted on LTX-315, affording the highly hydrolysis resistant MS-20 which possessed durable anticancer activity. Meanwhile, this study also provided a reliable reference for the future optimization of anticancer peptides through the solid-phase S-alkylation and L-type to D-type amino acid substitutions.
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Affiliation(s)
- Min Song
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Qing Liu
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Jing-Fang Yao
- Department of Natural Medicinal Chemistry and Pharmacognosy, School of Pharmacy, Qingdao University, #1 Ningde Road, Qingdao 266073, China
| | - Yu-Tao Wang
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Yan-Nan Ma
- Department of Natural Medicinal Chemistry and Pharmacognosy, School of Pharmacy, Qingdao University, #1 Ningde Road, Qingdao 266073, China
| | - Huan Xu
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Qian-Yao Yu
- Department of Natural Medicinal Chemistry and Pharmacognosy, School of Pharmacy, Qingdao University, #1 Ningde Road, Qingdao 266073, China
| | - Zhibo Li
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
| | - Shan-Shan Du
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China; Department of Natural Medicinal Chemistry and Pharmacognosy, School of Pharmacy, Qingdao University, #1 Ningde Road, Qingdao 266073, China.
| | - Yun-Kun Qi
- Department of Natural Medicinal Chemistry and Pharmacognosy, School of Pharmacy, Qingdao University, #1 Ningde Road, Qingdao 266073, China.
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7
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Xu H, Fu XY, Bao YX, Zhu SY, Xu Z, Song M, Qi YK, Li Z, Du SS. d-type peptides based fluorescent probes for "turn on" sensing of heparin. Bioorg Chem 2024; 147:107356. [PMID: 38604021 DOI: 10.1016/j.bioorg.2024.107356] [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: 02/14/2024] [Revised: 03/26/2024] [Accepted: 04/06/2024] [Indexed: 04/13/2024]
Abstract
Developing "turn on" fluorescent probes was desirable for the detection of the effective anticoagulant agent heparin in clinical applications. Through combining the aggregation induced emission (AIE) fluorogen tetraphenylethene (TPE) and heparin specific binding peptide AG73, the promising "turn on" fluorescent probe TPE-1 has been developed. Nevertheless, although TPE-1 could achieve the sensitive and selective detection of heparin, the low proteolytic stability and undesirable poor solubility may limit its widespread applications. In this study, seven TPE-1 derived fluorescent probes were rationally designed, efficiently synthesized and evaluated. The stability and water solubility were systematically estimated. Especially, to achieve real-time monitoring of proteolytic stability, the novel Abz/Dnp-based "turn on" probes that employ the internally quenched fluorescent (IQF) mechanism were designed and synthesized. Moreover, the detection ability of synthetic fluorescent probes for heparin were systematically evaluated. Importantly, the performance of d-type peptide fluorescent probe XH-6 indicated that d-type amino acid substitutions could significantly improve the proteolytic stability without compromising its ability of heparin sensing, and attaching solubilizing tag 2-(2-aminoethoxy) ethoxy) acid (AEEA) could greatly enhance the solubility. Collectively, this study not only established practical strategies to improve both the water solubility and proteolytic stability of "turn on" fluorescent probes for heparin sensing, but also provided valuable references for the subsequent development of enzymatic hydrolysis-resistant d-type peptides based fluorescent probes.
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Affiliation(s)
- Huan Xu
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Xing-Yan Fu
- School of Pharmacy, Qingdao University Medical College, Qingdao University, Qingdao 266073, China; Institute of Innovative Drugs, Qingdao University, Qingdao 266021, China
| | - Yong-Xin Bao
- Department of Anesthesiology, Qingdao Women and Children's Hospital, Qingdao University, Qingdao, Shandong 266034, China
| | - Shu-Ya Zhu
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Zi Xu
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Min Song
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Yun-Kun Qi
- School of Pharmacy, Qingdao University Medical College, Qingdao University, Qingdao 266073, China; Institute of Innovative Drugs, Qingdao University, Qingdao 266021, China.
| | - Zhibo Li
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
| | - Shan-Shan Du
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China; School of Pharmacy, Qingdao University Medical College, Qingdao University, Qingdao 266073, China; Institute of Innovative Drugs, Qingdao University, Qingdao 266021, China.
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8
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Fazekas Z, K Menyhárd D, Perczel A. LoCoHD: a metric for comparing local environments of proteins. Nat Commun 2024; 15:4029. [PMID: 38740745 DOI: 10.1038/s41467-024-48225-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Accepted: 04/22/2024] [Indexed: 05/16/2024] Open
Abstract
Protein folds and the local environments they create can be compared using a variety of differently designed measures, such as the root mean squared deviation, the global distance test, the template modeling score or the local distance difference test. Although these measures have proven to be useful for a variety of tasks, each fails to fully incorporate the valuable chemical information inherent to atoms and residues, and considers these only partially and indirectly. Here, we develop the highly flexible local composition Hellinger distance (LoCoHD) metric, which is based on the chemical composition of local residue environments. Using LoCoHD, we analyze the chemical heterogeneity of amino acid environments and identify valines having the most conserved-, and arginines having the most variable chemical environments. We use LoCoHD to investigate structural ensembles, to evaluate critical assessment of structure prediction (CASP) competitors, to compare the results with the local distance difference test (lDDT) scoring system, and to evaluate a molecular dynamics simulation. We show that LoCoHD measurements provide unique information about protein structures that is distinct from, for example, those derived using the alignment-based RMSD metric, or the similarly distance matrix-based but alignment-free lDDT metric.
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Affiliation(s)
- Zsolt Fazekas
- Laboratory of Structural Chemistry and Biology, Institute of Chemistry, ELTE Eötvös Loránd University, Budapest, Hungary
- ELTE Hevesy György PhD School of Chemistry, ELTE Eötvös Loránd University, Budapest, Hungary
| | - Dóra K Menyhárd
- Laboratory of Structural Chemistry and Biology, Institute of Chemistry, ELTE Eötvös Loránd University, Budapest, Hungary
- HUN-REN-ELTE Protein Modeling Research Group, ELTE Eötvös Loránd University, Budapest, Hungary
| | - András Perczel
- Laboratory of Structural Chemistry and Biology, Institute of Chemistry, ELTE Eötvös Loránd University, Budapest, Hungary.
- HUN-REN-ELTE Protein Modeling Research Group, ELTE Eötvös Loránd University, Budapest, Hungary.
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9
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Wan XC, Zhang YN, Zhang H, Chen Y, Cui ZH, Zhu WJ, Fang GM. Asparaginyl Endopeptidase-Mediated Peptide Cyclization for Phage Display. Org Lett 2024; 26:2601-2605. [PMID: 38529932 DOI: 10.1021/acs.orglett.4c00602] [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: 03/27/2024]
Abstract
We report here an enzymatic strategy for asparaginyl endopeptidase-mediated peptide cyclization. Incorporation of chloroacetyl groups into the recognition sequence of OaAEP1 enabled intramolecular cyclization with Cys residues. Combining this strategy and phage display, we identified nanomolar macrocyclic peptide ligands targeting TEAD4. One of the bicyclic peptides binds to TEAD4 with a KD value of 139 nM, 16 times lower than its linear analogue, demonstrating the utility of this platform in discovering high-affinity macrocyclic peptide ligands.
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Affiliation(s)
- Xiao-Cui Wan
- School of Life Science, Institutes of Physical Science and Information Technology, Institute of Health Sciences, Anhui University, Hefei 230601, P.R. China
| | - Yan-Ni Zhang
- School of Life Science, Institutes of Physical Science and Information Technology, Institute of Health Sciences, Anhui University, Hefei 230601, P.R. China
| | - Hua Zhang
- School of Life Science, Institutes of Physical Science and Information Technology, Institute of Health Sciences, Anhui University, Hefei 230601, P.R. China
| | - Ying Chen
- School of Life Science, Institutes of Physical Science and Information Technology, Institute of Health Sciences, Anhui University, Hefei 230601, P.R. China
| | - Zhi-Hui Cui
- School of Life Science, Institutes of Physical Science and Information Technology, Institute of Health Sciences, Anhui University, Hefei 230601, P.R. China
| | - Wen-Jing Zhu
- School of Life Science, Institutes of Physical Science and Information Technology, Institute of Health Sciences, Anhui University, Hefei 230601, P.R. China
| | - Ge-Min Fang
- School of Life Science, Institutes of Physical Science and Information Technology, Institute of Health Sciences, Anhui University, Hefei 230601, P.R. China
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10
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Zheng Y, Zhang B, Shi WW, Deng X, Wang TY, Han D, Ren Y, Yang Z, Zhou YK, Kuang J, Wang ZW, Tang S, Zheng JS. An Enzyme-Cleavable Solubilizing-Tag Facilitates the Chemical Synthesis of Mirror-Image Proteins. Angew Chem Int Ed Engl 2024; 63:e202318897. [PMID: 38326236 DOI: 10.1002/anie.202318897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 02/02/2024] [Accepted: 02/07/2024] [Indexed: 02/09/2024]
Abstract
Mirror-image proteins (D-proteins) are useful in biomedical research for purposes such as mirror-image screening for D-peptide drug discovery, but the chemical synthesis of many D-proteins is often low yielding due to the poor solubility or aggregation of their constituent peptide segments. Here, we report a Lys-C protease-cleavable solubilizing tag and its use to synthesize difficult-to-obtain D-proteins. Our tag is easily installed onto multiple amino acids such as DLys, DSer, DThr, and/or the N-terminal amino acid of hydrophobic D-peptides, is impervious to various reaction conditions, such as peptide synthesis, ligation, desulfurization, and transition metal-mediated deprotection, and yet can be completely removed by Lys-C protease under denaturing conditions to give the desired D-protein. The efficacy and practicality of the new method were exemplified in the synthesis of two challenging D-proteins: D-enantiomers of programmed cell death protein 1 IgV domain and SARS-CoV-2 envelope protein, in high yield. This work demonstrates that the enzymatic cleavage of solubilizing tags under denaturing conditions is feasible, thus paving the way for the production of more D-proteins.
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Affiliation(s)
- Yupeng Zheng
- Department of Hematology, The First Affiliated Hospital of University of Science and Technology of China (USTC), MOE Key Laboratory for Membraneless Organelles and Cellular Dynamics, and Division of Life Sciences and Medicine, Hefei National Research Center for Interdisciplinary Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui, 230001, China
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Baochang Zhang
- Department of Hematology, The First Affiliated Hospital of University of Science and Technology of China (USTC), MOE Key Laboratory for Membraneless Organelles and Cellular Dynamics, and Division of Life Sciences and Medicine, Hefei National Research Center for Interdisciplinary Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui, 230001, China
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Wei-Wei Shi
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Xiangyu Deng
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Tong-Yue Wang
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Dongyang Han
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Yuxiang Ren
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Ziyi Yang
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Yong-Kang Zhou
- Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230027, China
| | - Jian Kuang
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Zhi-Wen Wang
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Shan Tang
- Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230027, China
| | - Ji-Shen Zheng
- Department of Hematology, The First Affiliated Hospital of University of Science and Technology of China (USTC), MOE Key Laboratory for Membraneless Organelles and Cellular Dynamics, and Division of Life Sciences and Medicine, Hefei National Research Center for Interdisciplinary Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui, 230001, China
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11
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Fu XY, Yin H, Chen XT, Yao JF, Ma YN, Song M, Xu H, Yu QY, Du SS, Qi YK, Wang KW. Three Rounds of Stability-Guided Optimization and Systematical Evaluation of Oncolytic Peptide LTX-315. J Med Chem 2024; 67:3885-3908. [PMID: 38278140 DOI: 10.1021/acs.jmedchem.3c02232] [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: 01/28/2024]
Abstract
Oncolytic peptides represent promising novel candidates for anticancer treatments. In our efforts to develop oncolytic peptides possessing both high protease stability and durable anticancer efficiency, three rounds of optimization were conducted on the first-in-class oncolytic peptide LTX-315. The robust synthetic method, in vitro and in vivo anticancer activity, and anticancer mechanism were investigated. The D-type peptides represented by FXY-12 possessed significantly improved proteolytic stability and sustained anticancer efficiency. Strikingly, the novel hybrid peptide FXY-30, containing one FXY-12 and two camptothecin moieties, exhibited the most potent in vitro and in vivo anticancer activities. The mechanism explorations indicated that FXY-30 exhibited rapid membranolytic effects and induced severe DNA double-strand breaks to trigger cell apoptosis. Collectively, this study not only established robust strategies to improve the stability and anticancer potential of oncolytic peptides but also provided valuable references for the future development of D-type peptides-based hybrid anticancer chemotherapeutics.
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Affiliation(s)
- Xing-Yan Fu
- School of Pharmacy, Qingdao University Medical College, Qingdao University, #1 Ningde Road, Qingdao 266073, China
- Institute of Innovative Drugs, Qingdao University, #38 Dengzhou Road, Qingdao 266021, China
| | - Hao Yin
- School of Pharmacy, Qingdao University Medical College, Qingdao University, #1 Ningde Road, Qingdao 266073, China
- Institute of Innovative Drugs, Qingdao University, #38 Dengzhou Road, Qingdao 266021, China
| | - Xi-Tong Chen
- School of Pharmacy, Qingdao University Medical College, Qingdao University, #1 Ningde Road, Qingdao 266073, China
| | - Jing-Fang Yao
- School of Pharmacy, Qingdao University Medical College, Qingdao University, #1 Ningde Road, Qingdao 266073, China
| | - Yan-Nan Ma
- School of Pharmacy, Qingdao University Medical College, Qingdao University, #1 Ningde Road, Qingdao 266073, China
| | - Min Song
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Huan Xu
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Qian-Yao Yu
- School of Pharmacy, Qingdao University Medical College, Qingdao University, #1 Ningde Road, Qingdao 266073, China
| | - Shan-Shan Du
- School of Pharmacy, Qingdao University Medical College, Qingdao University, #1 Ningde Road, Qingdao 266073, China
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Yun-Kun Qi
- School of Pharmacy, Qingdao University Medical College, Qingdao University, #1 Ningde Road, Qingdao 266073, China
- Institute of Innovative Drugs, Qingdao University, #38 Dengzhou Road, Qingdao 266021, China
| | - Ke-Wei Wang
- School of Pharmacy, Qingdao University Medical College, Qingdao University, #1 Ningde Road, Qingdao 266073, China
- Institute of Innovative Drugs, Qingdao University, #38 Dengzhou Road, Qingdao 266021, China
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12
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Koch KN, Teo AJ, Wheeler KA. Dual space divergence in small molecule quasiracemates: benzoyl leucine and phenylalanine assemblies. Chem Commun (Camb) 2024; 60:2800-2803. [PMID: 38362749 DOI: 10.1039/d3cc06212k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2024]
Abstract
Quasiracemic materials constructed with two points of structural difference were used to understand the role molecular shape plays in molecular assembly. Hot stage, crystallographic and occupied cavity space assessments provide insight into how imposed CH3/Cl and H/CF3 structural variations placed on benzoyl leucine and phenylalanine scaffolds result in a remarkably high occurrence of cocrystal formation.
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Affiliation(s)
- Katelyn N Koch
- Department of Chemistry, Whitworth University, 300 West Hawthorne Road, Spokane, Washington, 99251, USA.
| | - Aaron J Teo
- Department of Chemistry, Whitworth University, 300 West Hawthorne Road, Spokane, Washington, 99251, USA.
| | - Kraig A Wheeler
- Department of Chemistry, Whitworth University, 300 West Hawthorne Road, Spokane, Washington, 99251, USA.
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13
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Callahan AJ, Gandhesiri S, Travaline TL, Reja RM, Lozano Salazar L, Hanna S, Lee YC, Li K, Tokareva OS, Swiecicki JM, Loas A, Verdine GL, McGee JH, Pentelute BL. Mirror-image ligand discovery enabled by single-shot fast-flow synthesis of D-proteins. Nat Commun 2024; 15:1813. [PMID: 38418820 PMCID: PMC10901774 DOI: 10.1038/s41467-024-45634-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 01/26/2024] [Indexed: 03/02/2024] Open
Abstract
Widespread adoption of mirror-image biological systems presents difficulties in accessing the requisite D-protein substrates. In particular, mirror-image phage display has the potential for high-throughput generation of biologically stable macrocyclic D-peptide binders with potentially unique recognition modes but is hindered by the individualized optimization required for D-protein chemical synthesis. We demonstrate a general mirror-image phage display pipeline that utilizes automated flow peptide synthesis to prepare D-proteins in a single run. With this approach, we prepare and characterize 12 D-proteins - almost one third of all reported D-proteins to date. With access to mirror-image protein targets, we describe the successful discovery of six macrocyclic D-peptide binders: three to the oncoprotein MDM2, and three to the E3 ubiquitin ligase CHIP. Reliable production of mirror-image proteins can unlock the full potential of D-peptide drug discovery and streamline the study of mirror-image biology more broadly.
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Affiliation(s)
- Alex J Callahan
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139, USA
| | - Satish Gandhesiri
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139, USA
| | - Tara L Travaline
- FOG Pharmaceuticals Inc., 30 Acorn Park Drive, Cambridge, MA, 02140, USA
| | - Rahi M Reja
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139, USA
| | - Lia Lozano Salazar
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139, USA
| | - Stephanie Hanna
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139, USA
| | - Yen-Chun Lee
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139, USA
- Department of Chemistry, National Cheng Kung University, No.1, University Road, Tainan City, 701, Taiwan
| | - Kunhua Li
- FOG Pharmaceuticals Inc., 30 Acorn Park Drive, Cambridge, MA, 02140, USA
| | - Olena S Tokareva
- FOG Pharmaceuticals Inc., 30 Acorn Park Drive, Cambridge, MA, 02140, USA
| | - Jean-Marie Swiecicki
- FOG Pharmaceuticals Inc., 30 Acorn Park Drive, Cambridge, MA, 02140, USA
- Relay Therapeutics, Inc., 399 Binney Street, 2nd Floor, Cambridge, MA, 02139, USA
| | - Andrei Loas
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139, USA
| | - Gregory L Verdine
- FOG Pharmaceuticals Inc., 30 Acorn Park Drive, Cambridge, MA, 02140, USA
- Department of Stem Cell and Regenerative Biology, Harvard University, 7 Divinity Avenue, Cambridge, MA, 02138, USA
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, MA, 02138, USA
- Department of Molecular and Cellular Biology, Harvard University, 52 Oxford Street, Cambridge, MA, 02138, USA
| | - John H McGee
- FOG Pharmaceuticals Inc., 30 Acorn Park Drive, Cambridge, MA, 02140, USA.
| | - Bradley L Pentelute
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139, USA.
- The Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, 500 Main Street, Cambridge, MA, 02142, USA.
- Center for Environmental Health Sciences, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139, USA.
- Broad Institute of MIT and Harvard, 415 Main Street, Cambridge, MA, 02142, USA.
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14
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Shi W, Wang T, Yang Z, Ren Y, Han D, Zheng Y, Deng X, Tang S, Zheng JS. L-Glycosidase-Cleavable Natural Glycans Facilitate the Chemical Synthesis of Correctly Folded Disulfide-Bonded D-Proteins. Angew Chem Int Ed Engl 2024; 63:e202313640. [PMID: 38193587 DOI: 10.1002/anie.202313640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 12/29/2023] [Accepted: 01/05/2024] [Indexed: 01/10/2024]
Abstract
D-peptide ligands can be screened for therapeutic potency and enzymatic stability using synthetic mirror-image proteins (D-proteins), but efficient acquisition of these D-proteins can be hampered by the need to accomplish their in vitro folding, which often requires the formation of correctly linked disulfide bonds. Here, we report the finding that temporary installation of natural O-linked-β-N-acetyl-D-glucosamine (O-GlcNAc) groups onto selected D-serine or D-threonine residues of the synthetic disulfide-bonded D-proteins can facilitate their folding in vitro, and that the natural glycosyl groups can be completely removed from the folded D-proteins to afford the desired chirally inverted D-protein targets using naturally occurring O-GlcNAcase. This approach enabled the efficient chemical syntheses of several important but difficult-to-fold D-proteins incorporating disulfide bonds including the mirror-image tumor necrosis factor alpha (D-TNFα) homotrimer and the mirror-image receptor-binding domain of the Omicron spike protein (D-RBD). Our work establishes the use of O-GlcNAc to facilitate D-protein synthesis and folding and proves that D-proteins bearing O-GlcNAc can be good substrates for naturally occurring O-GlcNAcase.
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Affiliation(s)
- Weiwei Shi
- Department of Hematology, The First Affiliated Hospital of USTC, MOE Key Laboratory for Membraneless Organelles and Cellular Dynamics, and Division of Life Sciences and Medicine, Hefei National Research Center for Interdisciplinary Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui, 230001, China
- Tsinghua-Peking Center for Life Sciences, Ministry of Education Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Tongyue Wang
- Tsinghua-Peking Center for Life Sciences, Ministry of Education Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Ziyi Yang
- Tsinghua-Peking Center for Life Sciences, Ministry of Education Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Yuxiang Ren
- Tsinghua-Peking Center for Life Sciences, Ministry of Education Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Dongyang Han
- Tsinghua-Peking Center for Life Sciences, Ministry of Education Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Yupeng Zheng
- Tsinghua-Peking Center for Life Sciences, Ministry of Education Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Xiangyu Deng
- Tsinghua-Peking Center for Life Sciences, Ministry of Education Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Shan Tang
- Department of Hematology, The First Affiliated Hospital of USTC, MOE Key Laboratory for Membraneless Organelles and Cellular Dynamics, and Division of Life Sciences and Medicine, Hefei National Research Center for Interdisciplinary Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui, 230001, China
| | - Ji-Shen Zheng
- Department of Hematology, The First Affiliated Hospital of USTC, MOE Key Laboratory for Membraneless Organelles and Cellular Dynamics, and Division of Life Sciences and Medicine, Hefei National Research Center for Interdisciplinary Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui, 230001, China
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15
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McKenna S, Aylward F, Miliara X, Lau RJ, Huemer CB, Giblin SP, Huse KK, Liang M, Reeves L, Pearson M, Xu Y, Rouse SL, Pease JE, Sriskandan S, Kagawa TF, Cooney J, Matthews S. The protease associated (PA) domain in ScpA from Streptococcus pyogenes plays a role in substrate recruitment. BIOCHIMICA ET BIOPHYSICA ACTA. PROTEINS AND PROTEOMICS 2023; 1871:140946. [PMID: 37562488 DOI: 10.1016/j.bbapap.2023.140946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 07/28/2023] [Accepted: 08/06/2023] [Indexed: 08/12/2023]
Abstract
Annually, over 18 million disease cases and half a million deaths worldwide are estimated to be caused by Group A Streptococcus. ScpA (or C5a peptidase) is a well characterised member of the cell enveleope protease family, which possess a S8 subtilisin-like catalytic domain and a shared multi-domain architecture. ScpA cleaves complement factors C5a and C3a, impairing the function of these critical anaphylatoxins and disrupts complement-mediated innate immunity. Although the high resolution structure of ScpA is known, the details of how it recognises its substrate are only just emerging. Previous studies have identified a distant exosite on the 2nd fibronectin domain that plays an important role in recruitment via an interaction with the substrate core. Here, using a combination of solution NMR spectroscopy, mutagenesis with functional assays and computational approaches we identify a second exosite within the protease-associated (PA) domain. We propose a model in which the PA domain assists optimal delivery of the substrate's C terminus to the active site for cleavage.
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Affiliation(s)
- Sophie McKenna
- Department of Life Sciences, Imperial College London, South Kensington Campus SW7 2AZ, UK
| | - Frances Aylward
- Department of Life Sciences, Imperial College London, South Kensington Campus SW7 2AZ, UK
| | - Xeni Miliara
- Department of Life Sciences, Imperial College London, South Kensington Campus SW7 2AZ, UK
| | - Rikin J Lau
- Department of Life Sciences, Imperial College London, South Kensington Campus SW7 2AZ, UK
| | - Camilla Berg Huemer
- Department of Life Sciences, Imperial College London, South Kensington Campus SW7 2AZ, UK
| | - Sean P Giblin
- National Heart and Lung Institute, Imperial College London, London SW7 2AZ, UK
| | - Kristin K Huse
- Department of Infectious Disease, Imperial College London, London W12 0NN, UK; Centre for Bacterial Resistance Biology, Imperial College London, London SW7 2AZ, UK
| | - Mingyang Liang
- Department of Life Sciences, Imperial College London, South Kensington Campus SW7 2AZ, UK
| | - Lucy Reeves
- Department of Life Sciences, Imperial College London, South Kensington Campus SW7 2AZ, UK
| | - Max Pearson
- Department of Infectious Disease, Imperial College London, London W12 0NN, UK
| | - Yingqi Xu
- Department of Life Sciences, Imperial College London, South Kensington Campus SW7 2AZ, UK
| | - Sarah L Rouse
- Department of Life Sciences, Imperial College London, South Kensington Campus SW7 2AZ, UK
| | - James E Pease
- National Heart and Lung Institute, Imperial College London, London SW7 2AZ, UK
| | - Shiranee Sriskandan
- Department of Infectious Disease, Imperial College London, London W12 0NN, UK; Centre for Bacterial Resistance Biology, Imperial College London, London SW7 2AZ, UK
| | - Todd F Kagawa
- Department of Biological Sciences, University of Limerick, Limerick, Ireland; Bernal Institute, University of Limerick, Limerick, Ireland
| | - Jakki Cooney
- Department of Biological Sciences, University of Limerick, Limerick, Ireland; Bernal Institute, University of Limerick, Limerick, Ireland
| | - Stephen Matthews
- Department of Life Sciences, Imperial College London, South Kensington Campus SW7 2AZ, UK; Centre for Bacterial Resistance Biology, Imperial College London, London SW7 2AZ, UK.
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16
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Zhao R, Shi P, Wei XX, Xia Z, Shi C, Shi J. Synthesis of A11 Cys-B11 Cys Disulfide Surrogates of H2 Relaxin through an Intermolecular Native Chemical Ligation-Assisted Diaminodiacid Strategy. Org Lett 2023; 25:6544-6548. [PMID: 37642298 DOI: 10.1021/acs.orglett.3c02381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
We report an intermolecular native chemical ligation-assisted diaminodiacid strategy for the flexible construction of A11Cys-B11Cys disulfide surrogates of H2 relaxin. The practicality of this strategy was evidenced by the synthesis of four new H2 relaxin analogs, among which H2-2a-B28Ile is found to exhibit improved potency, selectivity, and stability compared with native H2 relaxin.
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Affiliation(s)
- Rui Zhao
- Department of Chemistry, Center for BioAnalytical Chemistry, Hefei National Laboratory of Physical Science at Microscale, School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Pan Shi
- Department of Chemistry, Center for BioAnalytical Chemistry, Hefei National Laboratory of Physical Science at Microscale, School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Xiao-Xiong Wei
- Department of Chemistry, Center for BioAnalytical Chemistry, Hefei National Laboratory of Physical Science at Microscale, School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Zhemin Xia
- Department of Chemistry, Center for BioAnalytical Chemistry, Hefei National Laboratory of Physical Science at Microscale, School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Chaowei Shi
- Department of Chemistry, Center for BioAnalytical Chemistry, Hefei National Laboratory of Physical Science at Microscale, School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Jing Shi
- Department of Chemistry, Center for BioAnalytical Chemistry, Hefei National Laboratory of Physical Science at Microscale, School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
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17
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Yin H, Fu XY, Gao HY, Ma YN, Yao JF, Du SS, Qi YK, Wang KW. Design, synthesis and anticancer evaluation of novel oncolytic peptide-chlorambucil conjugates. Bioorg Chem 2023; 138:106674. [PMID: 37331169 DOI: 10.1016/j.bioorg.2023.106674] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 05/27/2023] [Accepted: 06/08/2023] [Indexed: 06/20/2023]
Abstract
Nitrogen mustards (NMs) are an important class of chemotherapeutic drugs and have been widely employed for the treatment of various cancers. However, due to the high reactivity of nitrogen mustard, most NMs react with proteins and phospholipids within the cell membrane. Therefore, only a very small fraction of NMs can reach the reach nucleus, alkylating and cross-linking DNA. To efficiently penetrate the cell membrane barrier, the hybridization of NMs with a membranolytic agent may be an effective strategy. Herein, the chlorambucil (CLB, a kind of NM) hybrids were first designed by conjugation with membranolytic peptide LTX-315. However, although LTX-315 could help large amounts of CLB penetrate the cytomembrane and enter the cytoplasm, CLB still did not readily reach the nucleus. Our previous work demonstrated that the hybrid peptide NTP-385 obtained by covalent conjugation of rhodamine B with LTX-315 could accumulate in the nucleus. Hence, the NTP-385-CLB conjugate, named FXY-3, was then designed and systematically evaluated both in vitro and in vivo. FXY-3 displayed prominent localization in the cancer cell nucleus and induced severe DNA double-strand breaks (DSBs) to trigger cell apoptosis. Especially, compared with CLB and LTX-315, FXY-3 exhibited significantly increased in vitro cytotoxicity against a panel of cancer cell lines. Moreover, FXY-3 showed superior in vivo anticancer efficiency in the mouse cancer model. Collectively, this study established an effective strategy to increase the anticancer activity and the nuclear accumulation of NMs, which will provide a valuable reference for future nucleus-targeting modification of nitrogen mustards.
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Affiliation(s)
- Hao Yin
- School of Pharmacy, Qingdao University Medical College, Qingdao University, #1 Ningde Road, Qingdao 266073, China; Institute of Innovative Drugs, Qingdao University, #38 Dengzhou Road, Qingdao 266021, China
| | - Xing-Yan Fu
- School of Pharmacy, Qingdao University Medical College, Qingdao University, #1 Ningde Road, Qingdao 266073, China
| | - Han-Yu Gao
- School of Stomatology, Jining Medical University, #133 Hehua Road, Jining 272067, China
| | - Yan-Nan Ma
- School of Pharmacy, Qingdao University Medical College, Qingdao University, #1 Ningde Road, Qingdao 266073, China
| | - Jing-Fang Yao
- School of Pharmacy, Qingdao University Medical College, Qingdao University, #1 Ningde Road, Qingdao 266073, China
| | - Shan-Shan Du
- School of Pharmacy, Qingdao University Medical College, Qingdao University, #1 Ningde Road, Qingdao 266073, China; College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Yun-Kun Qi
- School of Pharmacy, Qingdao University Medical College, Qingdao University, #1 Ningde Road, Qingdao 266073, China; Institute of Innovative Drugs, Qingdao University, #38 Dengzhou Road, Qingdao 266021, China.
| | - Ke-Wei Wang
- School of Pharmacy, Qingdao University Medical College, Qingdao University, #1 Ningde Road, Qingdao 266073, China; Institute of Innovative Drugs, Qingdao University, #38 Dengzhou Road, Qingdao 266021, China
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18
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Chi QN, Jia SX, Yin H, Wang LE, Fu XY, Ma YN, Sun MP, Qi YK, Li Z, Du SS. Efficient synthesis and anticancer evaluation of spider toxin peptide LVTX-8-based analogues with enhanced stability. Bioorg Chem 2023; 134:106451. [PMID: 36907048 DOI: 10.1016/j.bioorg.2023.106451] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 02/12/2023] [Accepted: 02/26/2023] [Indexed: 03/06/2023]
Abstract
Cytotoxic peptides derived from spider venoms have been considered as promising candidates for anticancer treatment. The novel cell penetrating peptide LVTX-8, which is a 25-residue amphipathic α-helical peptide isolated from spider Lycosa vittata, exhibited potent cytotoxicity and is a potential precursor for further anticancer drug development. Nevertheless, LVTX-8 may be easily degraded by multiple proteases, inducing the proteolytic stability problem and short half-life. In this study, ten LVTX-8-based analogs were rationally designed and the efficient manual synthetic method was established by the DIC/Oxyma based condensation system. The cytotoxicity of synthetic peptides was systematically evaluated against seven cancer cell lines. Seven of the derived peptides exhibited high cytotoxicity towards tested cancer in vitro, which was better than or comparable to that of natural LVTX-8. In particular, both N-acetyl and C-hydrazide modified LVTX-8 (825) and the conjugate methotrexate (MTX)-GFLG-LVTX-8 (827) possessed more durable anticancer efficiency, higher proteolytic stability, as well as lower hemolysis. Finally, we confirmed that LVTX-8 could disrupt the integrity of cell membrane, target the mitochondria and reduce the mitochondrial membrane potential to induce the cell death. Taken together, the structural modifications were conducted on LVTX-8 for the first time and the stability significantly improved derivatives 825 and 827 may provide useful references for the modifications of cytotoxic peptides.
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Affiliation(s)
- Qiao-Na Chi
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Shi-Xi Jia
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Hao Yin
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao 266073, China
| | - Li-E Wang
- Department of Assisted Reproduction, Reproductive Center, Qingdao Women and Children's Hospital, Qingdao 266004, China
| | - Xing-Yan Fu
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao 266073, China
| | - Yan-Nan Ma
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao 266073, China
| | - Ming-Pu Sun
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Yun-Kun Qi
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao 266073, China.
| | - Zhibo Li
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
| | - Shan-Shan Du
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China; Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao 266073, China.
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19
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Lander AJ, Jin Y, Luk LYP. D-Peptide and D-Protein Technology: Recent Advances, Challenges, and Opportunities. Chembiochem 2023; 24:e202200537. [PMID: 36278392 PMCID: PMC10805118 DOI: 10.1002/cbic.202200537] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 10/23/2022] [Indexed: 11/08/2022]
Abstract
Total chemical protein synthesis provides access to entire D-protein enantiomers enabling unique applications in molecular biology, structural biology, and bioactive compound discovery. Key enzymes involved in the central dogma of molecular biology have been prepared in their D-enantiomeric forms facilitating the development of mirror-image life. Crystallization of a racemic mixture of L- and D-protein enantiomers provides access to high-resolution X-ray structures of polypeptides. Additionally, D-enantiomers of protein drug targets can be used in mirror-image phage display allowing discovery of non-proteolytic D-peptide ligands as lead candidates. This review discusses the unique applications of D-proteins including the synthetic challenges and opportunities.
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Affiliation(s)
- Alexander J. Lander
- School of ChemistryCardiff UniversityMain Building, Park PlaceCardiffCF10 3ATUK
| | - Yi Jin
- Manchester Institute of BiotechnologyThe University of ManchesterManchesterM1 7DNUK
| | - Louis Y. P. Luk
- School of ChemistryCardiff UniversityMain Building, Park PlaceCardiffCF10 3ATUK
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20
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Zhao R, Shi P, Cui JB, Shi C, Wei XX, Luo J, Xia Z, Shi WW, Zhou Y, Tang J, Tian C, Meininghaus M, Bierer D, Shi J, Li YM, Liu L. Single-Shot Solid-Phase Synthesis of Full-Length H2 Relaxin Disulfide Surrogates. Angew Chem Int Ed Engl 2023; 62:e202216365. [PMID: 36515186 DOI: 10.1002/anie.202216365] [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: 11/07/2022] [Revised: 12/10/2022] [Accepted: 12/13/2022] [Indexed: 12/15/2022]
Abstract
Chemical synthesis of insulin superfamily proteins (ISPs) has recently been widely studied to develop next-generation drugs. Separate synthesis of multiple peptide fragments and tedious chain-to-chain folding are usually encountered in these studies, limiting accessibility to ISP derivatives. Here we report the finding that insulin superfamily proteins (e.g. H2 relaxin, insulin itself, and H3 relaxin) incorporating a pre-made diaminodiacid bridge at A-B chain terminal disulfide can be easily and rapidly synthesized by a single-shot automated solid-phase synthesis and expedient one-step folding. Our new H2 relaxin analogues exhibit almost identical structures and activities when compared to their natural counterparts. This new synthetic strategy will expediate production of new ISP analogues for pharmaceutical studies.
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Affiliation(s)
- Rui Zhao
- Department of Chemistry, Center for BioAnalytical Chemistry, Hefei National Laboratory of Physical Science at Microscale, School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230026, China.,School of Food and Biological Engineering, Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei, 230009, China
| | - Pan Shi
- Department of Chemistry, Center for BioAnalytical Chemistry, Hefei National Laboratory of Physical Science at Microscale, School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Ji-Bin Cui
- School of Food and Biological Engineering, Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei, 230009, China
| | - Chaowei Shi
- Department of Chemistry, Center for BioAnalytical Chemistry, Hefei National Laboratory of Physical Science at Microscale, School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Xiao-Xiong Wei
- Department of Chemistry, Center for BioAnalytical Chemistry, Hefei National Laboratory of Physical Science at Microscale, School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Jie Luo
- School of Food and Biological Engineering, Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei, 230009, China
| | - Zhemin Xia
- Department of Chemistry, Center for BioAnalytical Chemistry, Hefei National Laboratory of Physical Science at Microscale, School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Wei-Wei Shi
- Ministry of Education Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Tsinghua University, Beijing, 100084, China
| | - Yingxin Zhou
- Department of Chemistry, Center for BioAnalytical Chemistry, Hefei National Laboratory of Physical Science at Microscale, School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Jiahui Tang
- School of Food and Biological Engineering, Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei, 230009, China
| | - Changlin Tian
- Department of Chemistry, Center for BioAnalytical Chemistry, Hefei National Laboratory of Physical Science at Microscale, School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Mark Meininghaus
- Drug Discovery Sciences, Bayer AG, Pharmaceuticals, Aprather Weg 18 A, 42096, Wuppertal, Germany
| | - Donald Bierer
- Drug Discovery Sciences, Bayer AG, Pharmaceuticals, Aprather Weg 18 A, 42096, Wuppertal, Germany
| | - Jing Shi
- Department of Chemistry, Center for BioAnalytical Chemistry, Hefei National Laboratory of Physical Science at Microscale, School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Yi-Ming Li
- School of Food and Biological Engineering, Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei, 230009, China
| | - Lei Liu
- Department of Chemistry, Center for BioAnalytical Chemistry, Hefei National Laboratory of Physical Science at Microscale, School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230026, China.,Ministry of Education Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Tsinghua University, Beijing, 100084, China
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21
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Cui T, Li WJ, Chen J, Zhao R, Li YM. Development of an o-aminoanilide-mediated native chemical ligation-assisted DADA strategy for the synthesis of disulfide surrogate peptides. Org Biomol Chem 2023; 21:533-537. [PMID: 36533871 DOI: 10.1039/d2ob01966c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The hydrazide-based native chemical ligation-assisted diaminodiacid (DADA) strategy is an efficient method for synthesizing large-span disulfide bridge surrogates. However, it is difficult to synthesize disulfide bond surrogates at Gln-Cys or Asn-Cys ligation sites using this strategy. Herein, we report a peptide o-aminoanilide-mediated NCL-assisted DADA strategy that enables the synthesis of large-span peptide disulfide bridge surrogates containing only Gln-Cys or Asn-Cys ligation sites. Through this strategy, we successfully synthesized disulfide bond surrogates of conotoxin vil14a and κ-hefutoxin 1. This strategy provides a new option to obtain large-span peptide disulfide bridge substitutes for native chemical ligation at Gln-Cys and Asn-Cys sites.
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Affiliation(s)
- Tingting Cui
- School of Food and Biological Engineering, Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei 230009, China.
| | - Wen-Jie Li
- School of Food and Biological Engineering, Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei 230009, China.
| | - Junyou Chen
- School of Food and Biological Engineering, Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei 230009, China.
| | - Rui Zhao
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Yi-Ming Li
- School of Food and Biological Engineering, Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei 230009, China.
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22
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Simultaneous capture of ISG15 conjugating and deconjugating enzymes using a semi-synthetic ISG15-Dha probe. Sci China Chem 2023; 66:837-844. [PMID: 36684644 PMCID: PMC9840423 DOI: 10.1007/s11426-022-1455-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 11/08/2022] [Indexed: 01/15/2023]
Abstract
ISG15 is a ubiquitin-like (Ubl) protein attached to substrate proteins by ISG15 conjugating enzymes whose dysregulation is implicated in a multitude of disease processes, but the probing of these enzymes remains to be accomplished. Here, we describe the development of a new activity-based probe ISG15-Dha (dehydroalanine) through protein semi-synthesis. In vitro cross-linking and cell lysate proteomic profiling experiments showed that this probe can sequentially capture ISG15 conjugating enzymes including E1 enzyme UBA7, E2 enzyme UBE2L6, E3 enzyme HERC5, the previously known ISG15 deconjugating enzyme (USP18), as well as some other enzymes (USP5 and USP14) which we additionally confirmed to impart deISGylation activity. Collectively, ISG15-Dha provides a new tool that can simultaneously capture ISG15 conjugating and deconjugating enzymes for biochemical or pharmacological studies. Electronic Supplementary Material Supplementary material is available for this article at 10.1007/s11426-022-1455-x and is accessible for authorized users.
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23
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Chen K, Tang Y, Wu M, Wan XC, Zhang YN, Chen XX, Yu FQ, Cui ZH, Ma JM, Zhou Z, Fang GM. Head-to-Tail Cross-Linking to Generate Bicyclic Helical Peptides with Enhanced Helicity and Proteolytic Stability. Org Lett 2022; 24:53-57. [PMID: 34894695 DOI: 10.1021/acs.orglett.1c03629] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report a new pattern of a bicyclic helical peptide constructed through head-to-tail cross-linking. The described bicyclic helical peptide has a head-to-tail cross-linking arm and a C-terminal i, i + 4 cross-linking arm. This scaffold will provide a promising scaffold for designing a proteolytically resistant helix-constrained peptide.
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Affiliation(s)
- Kai Chen
- School of Life Science, Institute of Physical Science and Information Technology, Anhui University, Hefei 230601, P. R. China
| | - Yang Tang
- Center of Minimally Invasive Treatment for Tumor, Department of Medical Ultrasound, Shanghai Tenth People's Hospital, and Ultrasound Research and Education Institute, Clinical Research Center for Interventional Medicine, School of Medicine, Tongji University, Shanghai 200072, P. R. China
| | - Meng Wu
- School of Life Science, Institute of Physical Science and Information Technology, Anhui University, Hefei 230601, P. R. China
| | - Xiao-Cui Wan
- School of Life Science, Institute of Physical Science and Information Technology, Anhui University, Hefei 230601, P. R. China
| | - Yan-Ni Zhang
- School of Life Science, Institute of Physical Science and Information Technology, Anhui University, Hefei 230601, P. R. China
| | - Xiao-Xu Chen
- School of Life Science, Institute of Physical Science and Information Technology, Anhui University, Hefei 230601, P. R. China
| | - Fei-Qiang Yu
- School of Life Science, Institute of Physical Science and Information Technology, Anhui University, Hefei 230601, P. R. China
| | - Zhi-Hui Cui
- School of Life Science, Institute of Physical Science and Information Technology, Anhui University, Hefei 230601, P. R. China
- State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Biology, Tsinghua Shenzhen International Graduate School, Shenzhen, Guangdong 518055, P. R. China
| | - Jin-Ming Ma
- School of Life Science, Institute of Physical Science and Information Technology, Anhui University, Hefei 230601, P. R. China
| | - Zhaocai Zhou
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai 200438, P. R. China
| | - Ge-Min Fang
- School of Life Science, Institute of Physical Science and Information Technology, Anhui University, Hefei 230601, P. R. China
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24
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Shi WW, Shi C, Wang TY, Li YL, Zhou YK, Zhang XH, Bierer D, Zheng JS, Liu L. Total Chemical Synthesis of Correctly Folded Disulfide-Rich Proteins Using a Removable O-Linked β- N-Acetylglucosamine Strategy. J Am Chem Soc 2022; 144:349-357. [PMID: 34978456 DOI: 10.1021/jacs.1c10091] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Disulfide-rich proteins are useful as drugs or tool molecules in biomedical studies, but their synthesis is complicated by the difficulties associated with their folding. Here, we describe a removable glycosylation modification (RGM) strategy that expedites the chemical synthesis of correctly folded proteins with multiple or even interchain disulfide bonds. Our strategy comprises the introduction of simple O-linked β-N-acetylglucosamine (O-GlcNAc) groups at the Ser/Thr sites that effectively improve the folding of disulfide-rich proteins by stabilization of their folding intermediates. After folding, the O-GlcNAc groups can be efficiently removed using O-GlcNAcase (OGA) to afford the correctly folded proteins. Using this strategy, we completed the synthesis of correctly folded hepcidin, an iron-regulating hormone bearing four pairs of disulfide-bonds, and the first total synthesis of correctly folded interleukin-5 (IL-5), a 26 kDa homodimer cytokine responsible for eosinophil growth and differentiation.
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Affiliation(s)
- Wei-Wei Shi
- Tsinghua-Peking Center for Life Sciences, Ministry of Education Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, State Key Laboratory of Chemical Oncogenomics (Shenzhen), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | | | - Tong-Yue Wang
- Tsinghua-Peking Center for Life Sciences, Ministry of Education Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, State Key Laboratory of Chemical Oncogenomics (Shenzhen), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Yu-Lei Li
- Tsinghua-Peking Center for Life Sciences, Ministry of Education Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, State Key Laboratory of Chemical Oncogenomics (Shenzhen), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | | | | | - Donald Bierer
- Bayer AG, Department of Medicinal Chemistry, Aprather Weg 18A, 42096 Wuppertal, Germany
| | | | - Lei Liu
- Tsinghua-Peking Center for Life Sciences, Ministry of Education Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, State Key Laboratory of Chemical Oncogenomics (Shenzhen), Department of Chemistry, Tsinghua University, Beijing 100084, China
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25
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Ma Y, Liu Y, Wang J, Chen X, Yin H, Chi Q, Jia S, Du S, Qi Y, Wang K. DIC/Oxyma Based Efficient Synthesis and Activity Evaluation of Spider Peptide Toxin GsMTx4. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202109003] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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26
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Yin H, Chen X, Fu X, Ma Y, Xu Y, Zhang T, Liang S, Du S, Qi Y, Wang K. Efficient Chemical Synthesis and Oxidative Folding Studies of Scorpion Toxin Peptide WaTx. ACTA CHIMICA SINICA 2022. [DOI: 10.6023/a21120580] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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27
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Gorman D, Li XX, Payne CD, Cui CS, Lee JD, Rosengren KJ, Woodruff TM, Clark RJ. Development of Synthetic Human and Mouse C5a: Application to Binding and Functional Assays In Vitro and In Vivo. ACS Pharmacol Transl Sci 2021; 4:1808-1817. [PMID: 34927012 PMCID: PMC8669711 DOI: 10.1021/acsptsci.1c00199] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Indexed: 11/28/2022]
Abstract
The complement activation peptide C5a is a key mediator of inflammation that is associated with numerous immune disorders. C5a binds and activates two seven-transmembrane receptors, C5aR1 and C5aR2. Experimentally, C5a is utilized to investigate C5a receptor biology and to screen for potential C5aR1/C5aR2 therapeutics. Currently, laboratory sources of C5a stem from either isolation of endogenous C5a from human serum or most predominantly via recombinant expression. An alternative approach to C5a production is chemical synthesis, which has several advantages, including the ability to introduce non-natural amino acids and site-specific modifications whilst also maintaining a lower probability of C5a being contaminated with microbial molecules or other endogenous proteins. Here, we describe the efficient synthesis of both human (hC5a) and mouse C5a (mC5a) without the need for ligation chemistry. We validate the synthetic peptides by comparing pERK1/2 signaling in CHO-hC5aR1 cells and primary human macrophages (for hC5a) and in RAW264.7 cells (for mC5a). C5aR2 activation was confirmed by measuring β-arrestin recruitment in C5aR2-transfected HEK293 cells. We also demonstrate the functionalization of synthetic C5a through the introduction of a lanthanide chelating cage to facilitate a screen for the binding of ligands to C5aR1. Finally, we verify that the synthetic ligands are functionally similar to recombinant or native C5a by assessing hC5a-induced neutrophil chemotaxis in vitro and mC5a-mediated neutrophil mobilization in vivo. We propose that the synthetic hC5a and mC5a described herein are valuable alternatives to recombinant or purified C5a for in vitro and in vivo applications and add to the growing complement reagent toolbox.
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Affiliation(s)
- Declan
M. Gorman
- School
of Biomedical Sciences, The University of
Queensland, Brisbane, Queensland 4072, Australia
| | - Xaria X. Li
- School
of Biomedical Sciences, The University of
Queensland, Brisbane, Queensland 4072, Australia
| | - Colton D. Payne
- School
of Biomedical Sciences, The University of
Queensland, Brisbane, Queensland 4072, Australia
| | - Cedric S. Cui
- School
of Biomedical Sciences, The University of
Queensland, Brisbane, Queensland 4072, Australia
| | - John D. Lee
- School
of Biomedical Sciences, The University of
Queensland, Brisbane, Queensland 4072, Australia
| | - K. Johan Rosengren
- School
of Biomedical Sciences, The University of
Queensland, Brisbane, Queensland 4072, Australia
| | - Trent M. Woodruff
- School
of Biomedical Sciences, The University of
Queensland, Brisbane, Queensland 4072, Australia
- Queensland
Brain Institute, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Richard J. Clark
- School
of Biomedical Sciences, The University of
Queensland, Brisbane, Queensland 4072, Australia
- Institute
for Molecular Bioscience, The University
of Queensland, Brisbane, Queensland 4072, Australia
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28
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Gorman DM, Li XX, Lee JD, Fung JN, Cui CS, Lee HS, Rolfe BE, Woodruff TM, Clark RJ. Development of Potent and Selective Agonists for Complement C5a Receptor 1 with In Vivo Activity. J Med Chem 2021; 64:16598-16608. [PMID: 34762432 DOI: 10.1021/acs.jmedchem.1c01174] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The anaphylatoxin C5a is a complement peptide associated with immune-related disorders. C5a binds with equal potency to two GPCRs, C5aR1 and C5aR2. Multiple C5a peptide agonists have been developed to interrogate the C5a receptor function but none show selectivity for C5aR1. To address these limitations, we developed potent and stable peptide C5aR1 agonists that display no C5aR2 activity and over 1000-fold selectivity for C5aR1 over C3aR. This includes BM213, which induces C5aR1-mediated calcium mobilization and pERK1/2 signaling but not β-arrestin recruitment, and BM221, which exhibits no signaling bias. Both ligands are functionally similar to C5a in human macrophage cytokine release assays and in a murine in vivo neutrophil mobilization assay. BM213 showed antitumor activity in a mouse model of mammary carcinoma. We anticipate that these C5aR1-selective agonists will be useful research tools to investigate C5aR1 function.
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Affiliation(s)
- Declan M Gorman
- School of Biomedical Sciences, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Xaria X Li
- School of Biomedical Sciences, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - John D Lee
- School of Biomedical Sciences, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Jenny N Fung
- School of Biomedical Sciences, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Cedric S Cui
- School of Biomedical Sciences, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Han Siean Lee
- School of Biomedical Sciences, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Barbara E Rolfe
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Trent M Woodruff
- School of Biomedical Sciences, The University of Queensland, Brisbane, Queensland 4072, Australia.,Queensland Brain Institute, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Richard J Clark
- School of Biomedical Sciences, The University of Queensland, Brisbane, Queensland 4072, Australia
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29
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Ai H, Peng S, Li JB. Chemical methods for studying the crosstalk between histone H2B ubiquitylation and H3 methylation. J Pept Sci 2021; 28:e3381. [PMID: 34811838 DOI: 10.1002/psc.3381] [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: 07/17/2021] [Revised: 10/19/2021] [Accepted: 11/03/2021] [Indexed: 11/06/2022]
Abstract
The reversible and dynamic post-translational modifications (PTMs) of histones in eukaryotic chromatin are intimately connected to cell development and gene function, and abnormal regulation of PTMs can result in cancer and neurodegenerative diseases. Specific combinations of these modifications are mediated by a series of chromatin proteins that write, erase, and read the "histone codes," but mechanistic studies of the precise biochemical and structural relationships between different sets of modifications and their effects on chromatin function constitute a unique challenge to canonical biochemical approaches. In the past decade, the development and application of chemical methods for investigating histone PTM crosstalks has received considerable attention in the field of chemical biology. In this review, taking the functional crosstalk between H2B ubiquitylation at Lys120 (H2BK120ub) and H3 methylation at Lys79 (H3K79me) as a typical example, we survey recent developments of different chemical methods, in particular, protein synthetic chemistry and protein-based chemical probes, for studying the mechanism of the functional crosstalks of histone PTMs.
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Affiliation(s)
- Huasong Ai
- College of Pharmaceutical Sciences, Soochow University, Suzhou, China.,Ministry of Education Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Department of Chemistry, Tsinghua University, Beijing, China
| | - Shuai Peng
- College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Jia-Bin Li
- College of Pharmaceutical Sciences, Soochow University, Suzhou, China
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30
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Cui JB, Wei XX, Zhao R, Zhu H, Shi J, Bierer D, Li YM. Chemical synthesis of disulfide surrogate peptides by using beta-carbon dimethyl modified diaminodiacids. Org Biomol Chem 2021; 19:9021-9025. [PMID: 34611692 DOI: 10.1039/d1ob01715b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The replacement of disulfide bridges with metabolically stable isosteres is a promising strategy to improve the stability of disulfide-rich polypeptides towards reducing agents and isomerases. A diaminodiacid-based strategy is one of the most effective methods to construct disulfide bond mimics, but modified diaminodiacids have not been developed till now. Inspired by the fact that alkylation of disulfide bonds can regulate the activity of polypeptides, herein, we report the first example of thioether bridged diaminodiacids incorporating Cys Cβ dimethyl modification, obtained by penicillamine (Pen)-based thiol alkylation. The utility of these new diaminodiacids was demonstrated by the synthesis of disulfide surrogates of oxytocin containing a short-span disulfide bond and of KIIIA with large-span disulfide bonds. This new type of synthetic bridge further extends the diaminodiacid toolbox to facilitate the study of the structure-activity relationship of disulfide-rich peptides.
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Affiliation(s)
- Ji-Bin Cui
- School of Food and Biological Engineering, Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei 230009, China.
| | - Xiao-Xiong Wei
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, China.
| | - Rui Zhao
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, China.
| | - Huixia Zhu
- School of Food and Biological Engineering, Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei 230009, China.
| | - Jing Shi
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, China.
| | - Donald Bierer
- Department of Medicinal Chemistry, Bayer AG, Aprather Weg 18A, 42096 Wuppertal, Germany
| | - Yi-Ming Li
- School of Food and Biological Engineering, Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei 230009, China. .,Ministry of Education Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Tsinghua University, Beijing 100084, China
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31
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Chen XX, Tang Y, Wu M, Zhang YN, Chen K, Zhou Z, Fang GM. Helix-Constrained Peptides Constructed by Head-to-Side Chain Cross-Linking Strategies. Org Lett 2021; 23:7792-7796. [PMID: 34551517 DOI: 10.1021/acs.orglett.1c02820] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Facile head-to-side chain cross-linking strategies are developed to generate helix-constrained peptides. In our strategies, a covalent cross-linker is incorporated at N, i+7 or N, i+1 positions to lock the peptide into a helical conformation. The described patterns of head-to-side chain cross-linking will provide new frameworks for constrained helical peptide.
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Affiliation(s)
- Xiao-Xu Chen
- School of Life Science, Institute of Physical Science and Information Technology, Anhui University, Hefei 230601, P. R. China
| | - Yang Tang
- Center of Minimally Invasive Treatment for Tumor, Department of Medical Ultrasound, Shanghai Tenth People's Hospital; Ultrasound Research and Education Institute, Clinical Research Center for Interventional Medicine, School of Medicine, Tongji University, Shanghai 200072, P. R. China
| | - Meng Wu
- School of Life Science, Institute of Physical Science and Information Technology, Anhui University, Hefei 230601, P. R. China
| | - Yan-Ni Zhang
- School of Life Science, Institute of Physical Science and Information Technology, Anhui University, Hefei 230601, P. R. China
| | - Kai Chen
- School of Life Science, Institute of Physical Science and Information Technology, Anhui University, Hefei 230601, P. R. China
| | - Zhaocai Zhou
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai, 200438, P. R. China
| | - Ge-Min Fang
- School of Life Science, Institute of Physical Science and Information Technology, Anhui University, Hefei 230601, P. R. China
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32
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Chen XT, Wang JY, Ma YN, Dong LY, Jia SX, Yin H, Fu XY, Du SS, Qi YK, Wang K. DIC/Oxyma-based accelerated synthesis and oxidative folding studies of centipede toxin RhTx. J Pept Sci 2021; 28:e3368. [PMID: 34514664 DOI: 10.1002/psc.3368] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 08/10/2021] [Accepted: 08/15/2021] [Indexed: 12/21/2022]
Abstract
Coupling reagents play crucial roles in the iterative construction of amide bonds for the synthesis of peptides and peptide-based derivatives. The novel DIC/Oxyma condensation system featured with the low risk of explosion displayed remarkable abilities to inhibit racemization, along with efficient coupling efficiency in both manual and automated syntheses. Nevertheless, an ideal reaction molar ratio in DIC/Oxyma condensation system and the moderate reaction temperature by manual synthesis remain to be further investigated. Herein, the synthetic efficiencies of different reaction ratios between DIC and Oxyma under moderate reaction temperature were systematically evaluated. The robustness and efficiency of DIC/Oxyma condensation system are validated by the rapid synthesis of linear centipede toxin RhTx. Different folding strategies were applied for the construction of disulfide bridges in RhTx, which was further confirmed in assays of circular dichroism and patch-clamp electrophysiology evaluation. This work establishes the DIC/Oxyma-based accelerated synthesis of peptides under moderate condensation conditions, which is especially useful for the manual synthesis of peptides. Besides, the strategy presented here provides robust technical supports for the large-scale synthesis and oxidative folding of RhTx.
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Affiliation(s)
- Xi-Tong Chen
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao University Medical College, Qingdao, Shandong, China.,Institute of Innovative Drugs, Qingdao University, Qingdao, Shandong, China
| | - Jin-Yan Wang
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao University Medical College, Qingdao, Shandong, China.,Institute of Innovative Drugs, Qingdao University, Qingdao, Shandong, China
| | - Yan-Nan Ma
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao University Medical College, Qingdao, Shandong, China.,Institute of Innovative Drugs, Qingdao University, Qingdao, Shandong, China
| | - Li-Ying Dong
- Institute of Innovative Drugs, Qingdao University, Qingdao, Shandong, China
| | - Shi-Xi Jia
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, Shandong, China
| | - Hao Yin
- Institute of Innovative Drugs, Qingdao University, Qingdao, Shandong, China
| | - Xing-Yan Fu
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao University Medical College, Qingdao, Shandong, China.,Institute of Innovative Drugs, Qingdao University, Qingdao, Shandong, China
| | - Shan-Shan Du
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, Shandong, China
| | - Yun-Kun Qi
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao University Medical College, Qingdao, Shandong, China.,Institute of Innovative Drugs, Qingdao University, Qingdao, Shandong, China
| | - KeWei Wang
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao University Medical College, Qingdao, Shandong, China.,Institute of Innovative Drugs, Qingdao University, Qingdao, Shandong, China
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33
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Li YL, Qu Q, Qi YK, Liu L, Wang KW, Liu Y, Fang GM. Comparison of different strategies towards the chemical synthesis of long-chain scorpion toxin AaH-II. J Pept Sci 2021; 28:e3365. [PMID: 34467600 DOI: 10.1002/psc.3365] [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: 06/30/2021] [Revised: 08/02/2021] [Accepted: 08/05/2021] [Indexed: 11/08/2022]
Abstract
Long-chain scorpion toxin AaH-II isolated from Androctonus australis Hector can selectively inhibit mammalian voltage-gated sodium ion channel Nav 1.7 responsible for pain sensation. Efficient chemical synthesis of AaH-II and its derivatives is beneficial to the study of the function and mechanism of Nav 1.7 and the development of potential peptide inhibitors. Herein, we compared three different strategies, namely, direct solid-phase peptide synthesis, hydrazide-based two-segment native chemical ligation, and hydrazide-based three-segment native chemical ligation for the synthesis of AaH-II. The hydrazide-based two-segment native chemical ligation affords the target toxin with the optimal efficiency, which provides a practically robust procedure for the preparation of tool molecules derived from AaH-II to study the biological functions and modulation of Nav 1.7. Our work highlights the importance of selecting suitable segment condensation approach in the chemical synthesis of protein toxins.
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Affiliation(s)
- Yu-Lei Li
- Tsinghua-Peking Center for Life Sciences, Ministry of Education Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Department of Chemistry, Tsinghua University, Beijing, China.,Department of Pharmacology, School of Pharmacy, Qingdao University, Qingdao, China
| | - Qian Qu
- Tsinghua-Peking Center for Life Sciences, Ministry of Education Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Department of Chemistry, Tsinghua University, Beijing, China.,Department of Health Sciences, Institutes of Physical Science and Information Technology, Anhui University, Hefei, China
| | - Yun-Kun Qi
- Department of Pharmacology, School of Pharmacy, Qingdao University, Qingdao, China
| | - Lei Liu
- Tsinghua-Peking Center for Life Sciences, Ministry of Education Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Department of Chemistry, Tsinghua University, Beijing, China
| | - Ke Wei Wang
- Department of Pharmacology, School of Pharmacy, Qingdao University, Qingdao, China
| | - Yani Liu
- Department of Pharmacology, School of Pharmacy, Qingdao University, Qingdao, China
| | - Ge-Min Fang
- Department of Health Sciences, Institutes of Physical Science and Information Technology, Anhui University, Hefei, China
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34
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Cui T, Chen J, Zhao R, Guo Y, Tang J, Li Y, Li Y, Bierer D, Liu L. Use of a Removable Backbone Modification Strategy to Prevent Aspartimide Formation in the Synthesis of Asp Lactam Cyclic Peptides
†. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202100272] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Tingting Cui
- School of Food and Biological Engineering, Engineering Research Center of Bio‐process, Ministry of Education Hefei University of Technology Hefei Anhui 230009 China
| | - Junyou Chen
- School of Food and Biological Engineering, Engineering Research Center of Bio‐process, Ministry of Education Hefei University of Technology Hefei Anhui 230009 China
| | - Rui Zhao
- Department of Chemistry University of Science and Technology of China Hefei Anhui 230026 China
| | - Yanyan Guo
- School of Food and Biological Engineering, Engineering Research Center of Bio‐process, Ministry of Education Hefei University of Technology Hefei Anhui 230009 China
| | - Jiahui Tang
- School of Food and Biological Engineering, Engineering Research Center of Bio‐process, Ministry of Education Hefei University of Technology Hefei Anhui 230009 China
| | - Yulei Li
- Tsinghua‐Peking 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
| | - Yi‐Ming Li
- School of Food and Biological Engineering, Engineering Research Center of Bio‐process, Ministry of Education Hefei University of Technology Hefei Anhui 230009 China
| | - Donald Bierer
- Department of Medicinal Chemistry, Bayer AG, Aprather Weg 18A, 42096 Wuppertal Germany
| | - Lei Liu
- Tsinghua‐Peking 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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35
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Chen J, Cui T, Sun S, Guo Y, Chen J, Wang J, Bierer D, Li YM. Application of tert-Butyl Disulfide-Protected Amino Acids for the Fmoc Solid-Phase Synthesis of Lactam Cyclic Peptides under Mild Metal-Free Conditions. J Org Chem 2021; 86:8610-8619. [PMID: 34161109 DOI: 10.1021/acs.joc.1c00255] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Lactam cyclic peptides are a class of interesting and pharmaceutically active molecules, but their previous syntheses have required the use of heavy metals and/or forcing conditions. Here, we describe the efficient application of the previously reported tert-butyl disulfide-protected amino acids and their use in the efficient, solid-phase synthesis of a series of lactam cyclic peptides under mild, metal-free conditions.
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Affiliation(s)
- Junyou Chen
- School of Food and Biological Engineering, Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei 230009, P. R. China
| | - Tingting Cui
- School of Food and Biological Engineering, Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei 230009, P. R. China
| | - Shuaishuai Sun
- School of Food and Biological Engineering, Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei 230009, P. R. China
| | - Yanyan Guo
- School of Food and Biological Engineering, Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei 230009, P. R. China
| | - Jingnan Chen
- School of Food and Biological Engineering, Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei 230009, P. R. China
| | - Jun Wang
- School of Food and Biological Engineering, Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei 230009, P. R. China
| | - Donald Bierer
- Department of Medicinal Chemistry, Bayer AG, Aprather Weg 18A, 42096 Wuppertal, Germany
| | - Yi-Ming Li
- School of Food and Biological Engineering, Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei 230009, P. R. China
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36
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A versatile resin for the generation of thioether-bonded head-to-tail cyclized peptides. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.152867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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37
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Zhu HY, Wu M, Yu FQ, Zhang YN, Xi TK, Chen K, Fang GM. Chemical synthesis of thioether-bonded bicyclic peptides using tert-butylthio and Trt-protected cysteines. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.152875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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38
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Wang J, Dong L, Liu Y, Chen X, Ma Y, Yin H, Du S, Qi Y, Wang K. Efficient Synthesis and Oxidative Folding Studies of Centipede Toxin RhTx. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202102045] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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39
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Li Y, Cao X, Tian C, Zheng JS. Chemical protein synthesis-assisted high-throughput screening strategies for d-peptides in drug discovery. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2020.04.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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40
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Qi Y, Qu Q, Bierer D, Liu L. A Diaminodiacid (DADA) Strategy for the Development of Disulfide Surrogate Peptides. Chem Asian J 2020; 15:2793-2802. [DOI: 10.1002/asia.202000609] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 07/17/2020] [Indexed: 11/07/2022]
Affiliation(s)
- Yun‐Kun Qi
- Department of Medicinal Chemistry School of Pharmacy Qingdao University Qingdao 266021 China
- Tsinghua-Peking 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
| | - Qian Qu
- Tsinghua-Peking 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
| | - Donald Bierer
- Bayer AG Department of Medicinal Chemistry Aprather Weg 18A 42096 Wuppertal Germany
| | - Lei Liu
- Tsinghua-Peking 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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41
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Zhao R, Shi P, Chen J, Sun S, Chen J, Cui J, Wu F, Fang G, Tian C, Shi J, Bierer D, Liu L, Li YM. Chemical synthesis and biological activity of peptides incorporating an ether bridge as a surrogate for a disulfide bond. Chem Sci 2020; 11:7927-7932. [PMID: 34094161 PMCID: PMC8163063 DOI: 10.1039/d0sc02374d] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Disulfide bridges contribute to the definition and rigidity of polypeptides, but they are inherently unstable in reducing environments and in the presence of isomerases and nucleophiles. Strategies to address these deficiencies, ideally without significantly perturbing the structure of the polypeptide, would be of great interest. One possible surrogate for the disulfide bridge is a simple thioether, but these are susceptible to oxidation. We report the introduction of an ether linkage into the biologically active, disulfide-rich peptides oxytocin, tachyplesin I, and conotoxin α-ImI, using an ether-containing diaminodiacid as the key building block, obtained by the stereoselective ring-opening addition reaction of an aziridine skeleton with a hydroxy group. NMR studies indicated that the derivatives with an ether surrogate bridge exhibited very small change of their three-dimensional structures. The analogs obtained using this novel substitution strategy were found to be more stable than the original peptide in oxidative and reductive conditions; without a loss of bioactivity. This strategy is therefore proposed as a practical and versatile solution to the stability problems associated with cysteine-rich peptides. We report the first introduction of an ether linkage as surrogate into the disulfide-rich peptides using ether-containing diaminodiacid.![]()
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Affiliation(s)
- Rui Zhao
- Hefei National Laboratory of Physical Sciences at Microscale, Department of Chemistry, School of Life Sciences, University of Science and Technology of China Hefei Anhui 230009 China .,School of Food and Biological Engineering, Hefei University of Technology Hefei Anhui 230009 China
| | - Pan Shi
- Hefei National Laboratory of Physical Sciences at Microscale, Department of Chemistry, School of Life Sciences, University of Science and Technology of China Hefei Anhui 230009 China
| | - Junyou Chen
- School of Food and Biological Engineering, Hefei University of Technology Hefei Anhui 230009 China
| | - Shuaishuai Sun
- School of Food and Biological Engineering, Hefei University of Technology Hefei Anhui 230009 China
| | - Jingnan Chen
- School of Food and Biological Engineering, Hefei University of Technology Hefei Anhui 230009 China
| | - Jibin Cui
- School of Food and Biological Engineering, Hefei University of Technology Hefei Anhui 230009 China
| | - Fangming Wu
- High Magnetic Field Laboratory, Chinese Academy of Sciences Hefei 230031 China
| | - Gemin Fang
- School of Life Science, Institute of Physical Science and Information Technology, Anhui University Hefei 230601 China
| | - Changlin Tian
- Hefei National Laboratory of Physical Sciences at Microscale, Department of Chemistry, School of Life Sciences, University of Science and Technology of China Hefei Anhui 230009 China
| | - Jing Shi
- Hefei National Laboratory of Physical Sciences at Microscale, Department of Chemistry, School of Life Sciences, University of Science and Technology of China Hefei Anhui 230009 China
| | - Donald Bierer
- Department of Medicinal Chemistry, Bayer AG Aprather Weg 18A 42096 Wuppertal Germany
| | - Lei Liu
- Department of Chemistry, Tsinghua University Beijing 100084 China
| | - Yi-Ming Li
- School of Food and Biological Engineering, Hefei University of Technology Hefei Anhui 230009 China
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42
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43
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Huang DL, Li Y, Liang J, Yu L, Xue M, Cao XX, Xiao B, Tian CL, Liu L, Zheng JS. The New Salicylaldehyde S,S-Propanedithioacetal Ester Enables N-to-C Sequential Native Chemical Ligation and Ser/Thr Ligation for Chemical Protein Synthesis. J Am Chem Soc 2020; 142:8790-8799. [DOI: 10.1021/jacs.0c01561] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Dong-Liang Huang
- Hefei National Laboratory for Physical Sciences at the Microscale, School of Life Sciences, University of Science and Technology of China, Hefei 230027, China
- High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031, China
| | - Ying Li
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Jun Liang
- Hefei National Laboratory for Physical Sciences at the Microscale, School of Life Sciences, University of Science and Technology of China, Hefei 230027, China
| | - Lu Yu
- High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031, China
| | - Min Xue
- Hefei National Laboratory for Physical Sciences at the Microscale, School of Life Sciences, University of Science and Technology of China, Hefei 230027, China
| | - Xiu-Xiu Cao
- High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031, China
| | - Bin Xiao
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Chang-Lin Tian
- Hefei National Laboratory for Physical Sciences at the Microscale, School of Life Sciences, University of Science and Technology of China, Hefei 230027, China
- High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031, China
| | - Lei Liu
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Ji-Shen Zheng
- Hefei National Laboratory for Physical Sciences at the Microscale, School of Life Sciences, University of Science and Technology of China, Hefei 230027, China
- High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031, China
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44
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Qu Q, Gao S, Wu F, Zhang M, Li Y, Zhang L, Bierer D, Tian C, Zheng J, Liu L. Synthesis of Disulfide Surrogate Peptides Incorporating Large‐Span Surrogate Bridges Through a Native‐Chemical‐Ligation‐Assisted Diaminodiacid Strategy. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201915358] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Qian Qu
- Tsinghua-Peking 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
| | - Shuai Gao
- Tsinghua-Peking 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
| | - Fangming Wu
- High Magnetic Field LaboratoryChinese Academy of Sciences Hefei 230031 China
| | - Meng‐Ge Zhang
- School of Life SciencesHefei National Laboratory for Physical Sciences at the MicroscaleUniversity of Science and Technology of China Hefei 230027 China
| | - Ying Li
- School of Life SciencesHefei National Laboratory for Physical Sciences at the MicroscaleUniversity of Science and Technology of China Hefei 230027 China
| | - Long‐Hua Zhang
- School of Life SciencesHefei National Laboratory for Physical Sciences at the MicroscaleUniversity of Science and Technology of China Hefei 230027 China
| | - Donald Bierer
- Bayer AGDepartment of Medicinal Chemistry Aprather Weg 18A 42096 Wuppertal Germany
| | - Chang‐Lin Tian
- High Magnetic Field LaboratoryChinese Academy of Sciences Hefei 230031 China
- School of Life SciencesHefei National Laboratory for Physical Sciences at the MicroscaleUniversity of Science and Technology of China Hefei 230027 China
| | - Ji‐Shen Zheng
- School of Life SciencesHefei National Laboratory for Physical Sciences at the MicroscaleUniversity of Science and Technology of China Hefei 230027 China
| | - Lei Liu
- Tsinghua-Peking 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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45
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Qu Q, Gao S, Wu F, Zhang MG, Li Y, Zhang LH, Bierer D, Tian CL, Zheng JS, Liu L. Synthesis of Disulfide Surrogate Peptides Incorporating Large-Span Surrogate Bridges Through a Native-Chemical-Ligation-Assisted Diaminodiacid Strategy. Angew Chem Int Ed Engl 2020; 59:6037-6045. [PMID: 32060988 DOI: 10.1002/anie.201915358] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 01/19/2020] [Indexed: 12/17/2022]
Abstract
The use of synthetic bridges as surrogates for disulfide bonds has emerged as a practical strategy to obviate the poor stability of some disulfide-containing peptides. However, peptides incorporating large-span synthetic bridges are still beyond the reach of existing methods. Herein, we report a native chemical ligation (NCL)-assisted diaminodiacid (DADA) strategy that enables the robust generation of disulfide surrogate peptides incorporating surrogate bridges up to 50 amino acids in length. This strategy provides access to some highly desirable but otherwise impossible-to-obtain disulfide surrogates of bioactive peptide. The bioactivities and structures of the synthetic disulfide surrogates were verified by voltage clamp assays, NMR, and X-ray crystallography; and stability studies established that the disulfide replacements effectively overcame the problems of disulfide reduction and scrambling that often plague these pharmacologically important peptides.
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Affiliation(s)
- Qian Qu
- Tsinghua-Peking 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
| | - Shuai Gao
- Tsinghua-Peking 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
| | - Fangming Wu
- High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei, 230031, China
| | - Meng-Ge Zhang
- School of Life Sciences, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230027, China
| | - Ying Li
- School of Life Sciences, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230027, China
| | - Long-Hua Zhang
- School of Life Sciences, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230027, China
| | - Donald Bierer
- Bayer AG, Department of Medicinal Chemistry, Aprather Weg 18A, 42096, Wuppertal, Germany
| | - Chang-Lin Tian
- High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei, 230031, China.,School of Life Sciences, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230027, China
| | - Ji-Shen Zheng
- School of Life Sciences, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230027, China
| | - Lei Liu
- Tsinghua-Peking 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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46
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Chen J, Sun S, Zhao R, Xi C, Qiu W, Wang N, Wang Y, Bierer D, Shi J, Li Y. Chemical Synthesis of Six‐Atom Thioether Bridged Diaminodiacid for Solid‐Phase Synthesis of Peptide Disulfide Bond Mimics. ChemistrySelect 2020. [DOI: 10.1002/slct.201904042] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Junyou Chen
- School of Food and Biological EngineeringHefei University of Technology Hefei 230009 China
| | - Shuaishuai Sun
- School of Food and Biological EngineeringHefei University of Technology Hefei 230009 China
| | - Rui Zhao
- Department of ChemistryUniversity of Science and Techmology of China Hefei 230026 China
| | - Chen‐Peng Xi
- School of Food and Biological EngineeringHefei University of Technology Hefei 230009 China
| | - Wenjie Qiu
- School of Food and Biological EngineeringHefei University of Technology Hefei 230009 China
| | - Ning Wang
- School of Food and Biological EngineeringHefei University of Technology Hefei 230009 China
| | - Ya Wang
- School of Life ScienceAnhui University Hefei 230601 China
| | - Donald Bierer
- Department of Medicinal ChemistryBayer AG Aprather Weg 18 A 42096 Wuppertal Germany
| | - Jing Shi
- Department of ChemistryUniversity of Science and Techmology of China Hefei 230026 China
| | - Yi‐Ming Li
- School of Food and Biological EngineeringHefei University of Technology Hefei 230009 China
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