Article(id=1199783106812149787, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1199783099115598386, articleNumber=null, orderNo=null, doi=10.16438/j.0513-4870.2024-0602, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1719417600000, receivedDateStr=2024-06-27, revisedDate=1724947200000, revisedDateStr=2024-08-30, acceptedDate=null, acceptedDateStr=null, onlineDate=1763980183556, onlineDateStr=2025-11-24, pubDate=1731340800000, pubDateStr=2024-11-12, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1763980183556, onlineIssueDateStr=2025-11-24, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1763980183556, creator=13701087609, updateTime=1763980183556, updator=13701087609, issue=Issue{id=1199783099115598386, tenantId=1146029695717560320, journalId=1189982191388893191, year='2024', volume='59', issue='11', pageStart='2897', pageEnd='3178', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1763980181720, creator=13701087609, updateTime=1764225007568, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1200809973203726680, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1199783099115598386, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1200809973203726681, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1199783099115598386, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=2975, endPage=2980, ext={EN=ArticleExt(id=1199783107143499811, articleId=1199783106812149787, tenantId=1146029695717560320, journalId=1189982191388893191, language=EN, title=HSP90 functional site recognition mechanism based on peptide derivatives, columnId=null, journalTitle=Acta Pharmaceutica Sinica, columnName=null, runingTitle=null, highlight=null, articleAbstract=
Heat shock protein 90 (HSP90) is a crucial molecular chaperone responsible for the activation and maturation of client proteins. Targeting HSP90 can effectively inhibit cancer cell proliferation by either competitively occupying the ATP-binding site or disrupting the protein-protein interaction sites between HSP90 and its co-chaperones. Therefore, studying the recognition and function of HSP90 binding sites is essential for molecular discovery. This study focuses on peptide P1, revealing its dual binding mechanism with HSP90. P1 is capable of simultaneously interacting with both the ATP-binding site of HSP90 and the binding interface with the co-chaperone CDC37 (cell division cycle 37). Through ATPase and Co-IP assays, we found that P1 effectively inhibits both ATP activity and the protein interaction between HSP90 and CDC37, providing a novel approach for developing new inhibitors targeting the HSP90 chaperone system.
, correspAuthors=Qi-dong YOU, Lei WANG, authorNote=null, correspAuthorsNote=null, copyrightStatement=Copyright ©2024 Acta Pharmaceutica Sinica. All rights reserved., copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, authorCompany=null, fund=null, authors=null, authorsList=Li-xiao ZHANG, Qi-dong YOU, Lei WANG), CN=ArticleExt(id=1199783108259184734, articleId=1199783106812149787, tenantId=1146029695717560320, journalId=1189982191388893191, language=CN, title=基于多肽衍生物的HSP90功能位点识别机制研究, columnId=1199783099958653494, journalTitle=药学学报, columnName=专题报道: 蛋白成熟与翻译后修饰的化学干预, runingTitle=null, highlight=null, articleAbstract=
HSP90 (heat shock protein 90) 是一种重要的分子伴侣蛋白, 负责客户蛋白的激活和成熟。靶向HSP90可通过竞争性占据ATP位点或者干扰HSP90与共伴侣蛋白之间的蛋白互作位点, 进而有效抑制癌细胞增殖。因此, HSP90的位点识别与功能的研究对于分子发现至关重要。本研究聚焦于多肽P1, 揭示了其与HSP90之间的双重结合机制, P1能够同时作用于HSP90的ATP结合位点和共伴侣蛋白CDC37 (cell division cycle 37) 结合界面。通过ATPase实验和Co-IP实验, 发现P1具有同时抑制ATP的活性和HSP90-CDC37之间的蛋白互作的能力, 这为靶向HSP90伴侣系统的新型抑制剂提供了新思路。
, correspAuthors=尤启冬, 王磊, authorNote=null, correspAuthorsNote=
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Structure of the HSP90 NTD in complex compared with the potential binding modes of different molecules. A: Overview of the GA, P1 and compound 11 bound to HSP90 NTD colored grey; B: Chemical structure of GA, P1 and compound 11; C: The red line defines ATP binding pocket; D: P1 binds to two binding pockets; E: The blue line defines potential CDC37 binding interface. NTD: N terminal domain; GA: Geldanamycin; P1: Gly14-Arg13-Asp12-Leu11-Tyr10-Asp9-Asp8 , figureFileSmall=97fUM94oWkAsCmUdDdvtyg==, figureFileBig=Zm1d2E5v3NsxUl1mhJmhbg==, tableContent=null), ArticleFig(id=1200375555347575386, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1199783106812149787, language=EN, label=null, caption=null, figureFileSmall=hNQXCGqtTt88H1auwxqhdg==, figureFileBig=fzzqMPnOjLArY4JXOVL3CA==, tableContent=null), ArticleFig(id=1200375555515347553, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1199783106812149787, language=CN, label=Figure 2, caption=
Analysis of MD simulations and binding energy calculation. A: A schematic of detailed P1 atom interactions with the protein HSP90 NTD residues; B: Per-residue of P1 energy decomposition; C: Backbone RMSD values of GA, P1 and compound 11 (Comp11) are shown separately for the compare. MD: Molecular dynamics; RMSD: Root mean square deviation , figureFileSmall=hNQXCGqtTt88H1auwxqhdg==, figureFileBig=fzzqMPnOjLArY4JXOVL3CA==, tableContent=null), ArticleFig(id=1200375555657953901, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1199783106812149787, language=EN, label=null, caption=null, figureFileSmall=kXLZ4WVy9tUfpJfbVhbDAA==, figureFileBig=Ubz3cJWmRxvueRZTJE/3CA==, tableContent=null), ArticleFig(id=1200375555825726071, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1199783106812149787, language=CN, label=Figure 3, caption=
P1 binding to the HSP90 NTD double binding site. A: Dose dependence of peptides inhibition of HSP90 ATPase activity; B: Flag-CDC37 and Myc-HSP90 were transferred to 293T after treatment with dose-dependent P1 (0, 1, 5 and 10 μmol·L-1) for Co-IP. Western blots were performed with anti-Flag and anti-Myc. Co-IP: Co-immunoprecipitation , figureFileSmall=kXLZ4WVy9tUfpJfbVhbDAA==, figureFileBig=Ubz3cJWmRxvueRZTJE/3CA==, tableContent=null), ArticleFig(id=1200375555938972288, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1199783106812149787, language=EN, label=null, caption=null, figureFileSmall=O4Urqhfl0K2yk6ghKUdEng==, figureFileBig=XJTBRlahEFSfjKb7wuI+1g==, tableContent=null), ArticleFig(id=1200375556052218508, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1199783106812149787, language=CN, label=Figure 4, caption=
Binding affinities of HSP90 NTD proteins for P1, P2, P3 and P4. A: BLI assay results of target compound P1, P2, P3 and P4; B: HSQC spectra of 50 μmol·L-1 15N-labeled HSP90 NTD in the absence and presence of 250 μmol·L-1 P1, P2, P3 and P4. BLI: Biolayer interferometry; HSQC: Heteronuclear single quantum coherence spectroscopy , figureFileSmall=O4Urqhfl0K2yk6ghKUdEng==, figureFileBig=XJTBRlahEFSfjKb7wuI+1g==, tableContent=null), ArticleFig(id=1200375556173853337, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1199783106812149787, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| Peptide No. | Sequence | KD/μmol·L-1 | IC50/μmol·L-1 |
| P1 | Ac-Gly-Arg-Asp-Leu-Tyr-Asp-Asp-NH2 | 2.63 | 1.35 |
| P2 | Ac-Gly-Arg(Me)2-Asp-Leu-Tyr-Asp-Asp-NH2 | 6.58 | 3.62 |
| P3 | Ac-Gly-Arg-Asp-Leu-Tyr(OMe)-Asp-Asp-NH2 | NA | NA |
| P4 | Ac-Gly-Arg-Asp-Leu-Tyr-Asp(OMe)-Asp-NH2 | 5.79 | 6.31 |
), ArticleFig(id=1200375556345819813, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1199783106812149787, language=CN, label=Table 1, caption=
P1-derived peptides binding capacity and inhibition rate of HSP90 ATPase
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| Peptide No. | Sequence | KD/μmol·L-1 | IC50/μmol·L-1 |
| P1 | Ac-Gly-Arg-Asp-Leu-Tyr-Asp-Asp-NH2 | 2.63 | 1.35 |
| P2 | Ac-Gly-Arg(Me)2-Asp-Leu-Tyr-Asp-Asp-NH2 | 6.58 | 3.62 |
| P3 | Ac-Gly-Arg-Asp-Leu-Tyr(OMe)-Asp-Asp-NH2 | NA | NA |
| P4 | Ac-Gly-Arg-Asp-Leu-Tyr-Asp(OMe)-Asp-NH2 | 5.79 | 6.31 |
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