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Abstract
Site-selective peptide/protein degradation through chemical cleavage methods is an important modification of biologically relevant macromolecules which complements enzymatic hydrolysis. In this review, recent progress in chemical, site-selective peptide bond cleavage is overviewed, with an emphasis on postulated mechanisms and their implications on reactivity, selectivity, and substrate scope.
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Seki Y, Tanabe K, Sasaki D, Sohma Y, Oisaki K, Kanai M. Serine-selective aerobic cleavage of peptides and a protein using a water-soluble copper-organoradical conjugate. Angew Chem Int Ed Engl 2014; 53:6501-5. [PMID: 24826926 DOI: 10.1002/anie.201402618] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2014] [Indexed: 01/02/2023]
Abstract
The site-specific cleavage of peptide bonds is an important chemical modification of biologically relevant macromolecules. The reaction is not only used for routine structural determination of peptides, but is also a potential artificial modulator of protein function. Realizing the substrate scope beyond the conventional chemical or enzymatic cleavage of peptide bonds is, however, a formidable challenge. Here we report a serine-selective peptide-cleavage protocol that proceeds at room temperature and near neutral pH value, through mild aerobic oxidation promoted by a water-soluble copper-organoradical conjugate. The method is applicable to the site-selective cleavage of polypeptides that possess various functional groups. Peptides comprising D-amino acids or sensitive disulfide pairs are competent substrates. The system is extendable to the site-selective cleavage of a native protein, ubiquitin, which comprises more than 70 amino acid residues.
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Affiliation(s)
- Yohei Seki
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033 (Japan)
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Seki Y, Tanabe K, Sasaki D, Sohma Y, Oisaki K, Kanai M. Serine‐Selective Aerobic Cleavage of Peptides and a Protein Using a Water‐Soluble Copper–Organoradical Conjugate. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201402618] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yohei Seki
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Bunkyo‐ku, Tokyo 113‐0033 (Japan)
| | - Kana Tanabe
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Bunkyo‐ku, Tokyo 113‐0033 (Japan)
- Japan Science and Technology Agency (JST), ERATO, Kanai Life Science Catalysis Project, Bunkyo‐ku, Tokyo 113‐0033 (Japan)
| | - Daisuke Sasaki
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Bunkyo‐ku, Tokyo 113‐0033 (Japan)
- Japan Science and Technology Agency (JST), ERATO, Kanai Life Science Catalysis Project, Bunkyo‐ku, Tokyo 113‐0033 (Japan)
| | - Youhei Sohma
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Bunkyo‐ku, Tokyo 113‐0033 (Japan)
- Japan Science and Technology Agency (JST), ERATO, Kanai Life Science Catalysis Project, Bunkyo‐ku, Tokyo 113‐0033 (Japan)
| | - Kounosuke Oisaki
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Bunkyo‐ku, Tokyo 113‐0033 (Japan)
| | - Motomu Kanai
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Bunkyo‐ku, Tokyo 113‐0033 (Japan)
- Japan Science and Technology Agency (JST), ERATO, Kanai Life Science Catalysis Project, Bunkyo‐ku, Tokyo 113‐0033 (Japan)
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Ostrowski J, Wyrwicz LS. Integrating genomics, proteomics and bioinformatics in translational studies of molecular medicine. Expert Rev Mol Diagn 2014; 9:623-30. [DOI: 10.1586/erm.09.41] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Lee CS, Kang KR, Lee JY, Park CS, Hahn KH, Sohn JW, Kim BJ. Proteomic analysis of rat brains following exposure to electroconvulsive therapy. J Korean Med Sci 2009; 24:132-7. [PMID: 19270826 PMCID: PMC2650984 DOI: 10.3346/jkms.2009.24.1.132] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2007] [Accepted: 06/03/2008] [Indexed: 11/30/2022] Open
Abstract
Electroconvulsive therapy (ECT) is one of the most effective treatments used in psychiatry to date. The mechanisms of ECT action, however, are the least understood and still unclear. As a tool to elucidate the mechanisms of action of ECT, we employed proteomic analysis based on the identification of differentially expressed proteins after exposure to repeated ECT in rat brains. The expression of proteins was visualized by silver stain after two-dimensional gel electrophoresis. Of 24 differentially expressed protein spots (p<0.05 by Student t-test), six different proteins from 7 spots were identified by matrix-assisted laser desorption/ionization time-of flight (MALDI-TOF)/mass spectrometry. Among the identified proteins, there were five dominantly expressed proteins in the ECT-treated rat brain tissues (p<0.05); S100 protein beta chain, 14-3-3 protein zeta/delta, similar to ubiquitin-like 1 (sentrin) activating enzyme subunit 1, suppressor of G2 allele of SKP1 homolog, and phosphatidylinositol transfer protein alpha. The expression of only one protein, ACY1 protein, was repressed (p<0.05). These findings likely serve for a better understanding of mechanisms involved in the therapeutic effects of ECT.
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Affiliation(s)
- Cheol Soon Lee
- Department of Psychiatry, College of Medicine and Institute of Health Sciences, Gyeongsang National University, Jinju, Korea
| | - Kee Ryeon Kang
- Department of Biochemistry, College of Medicine and Institute of Health Sciences, Gyeongsang National University, Jinju, Korea
- MRC for Neural Dysfunction, College of Medicine and Institute of Health Sciences, Gyeongsang National University, Jinju, Korea
| | - Ji-Young Lee
- Department of Biochemistry, College of Medicine and Institute of Health Sciences, Gyeongsang National University, Jinju, Korea
- MRC for Neural Dysfunction, College of Medicine and Institute of Health Sciences, Gyeongsang National University, Jinju, Korea
| | - Chul Soo Park
- Department of Psychiatry, College of Medicine and Institute of Health Sciences, Gyeongsang National University, Jinju, Korea
| | - Kyu Hee Hahn
- Department of Psychiatry, College of Medicine and Institute of Health Sciences, Gyeongsang National University, Jinju, Korea
| | - Jin Wook Sohn
- Department of Psychiatry, College of Medicine and Institute of Health Sciences, Gyeongsang National University, Jinju, Korea
| | - Bong Jo Kim
- Department of Psychiatry, College of Medicine and Institute of Health Sciences, Gyeongsang National University, Jinju, Korea
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Methods in Proteomics. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/s1871-0069(05)01025-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
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