This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.
Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.
6ceo
From Proteopedia
(Difference between revisions)
m (Protected "6ceo" [edit=sysop:move=sysop]) |
|||
| Line 1: | Line 1: | ||
| - | '''Unreleased structure''' | ||
| - | + | ==Structure of Hsp90 NTD with a GRP94-selective resorcinylic inhibitor.== | |
| + | <StructureSection load='6ceo' size='340' side='right' caption='[[6ceo]], [[Resolution|resolution]] 1.90Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[6ceo]] is a 1 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6CEO OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6CEO FirstGlance]. <br> | ||
| + | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=D57:dimethyl+2-[2-(1-benzyl-1H-imidazol-2-yl)ethyl]-4,6-dihydroxybenzene-1,3-dicarboxylate'>D57</scene>, <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr> | ||
| + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6ceo FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6ceo OCA], [http://pdbe.org/6ceo PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6ceo RCSB], [http://www.ebi.ac.uk/pdbsum/6ceo PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6ceo ProSAT]</span></td></tr> | ||
| + | </table> | ||
| + | == Function == | ||
| + | [[http://www.uniprot.org/uniprot/HS90A_HUMAN HS90A_HUMAN]] Molecular chaperone that promotes the maturation, structural maintenance and proper regulation of specific target proteins involved for instance in cell cycle control and signal transduction. Undergoes a functional cycle that is linked to its ATPase activity. This cycle probably induces conformational changes in the client proteins, thereby causing their activation. Interacts dynamically with various co-chaperones that modulate its substrate recognition, ATPase cycle and chaperone function.<ref>PMID:15937123</ref> <ref>PMID:11274138</ref> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | Grp94 and Hsp90, the ER and cytoplasmic hsp90 paralogs, share a conserved ATP-binding pocket that has been targeted for therapeutics. Paralog-selective inhibitors may lead to drugs with fewer side effects. Here, we analyzed 1 (BnIm), a benzyl imidazole resorcinylic inhibitor, for its mode of binding. The structures of 1 bound to Hsp90 and Grp94 reveal large conformational changes in Grp94 but not Hsp90 that expose site 2, a binding pocket adjacent to the central ATP cavity that is ordinarily blocked. The Grp94:1 structure reveals a flipped pose of the resorcinylic scaffold that inserts into the exposed site 2. We exploited this flipped binding pose to develop a Grp94-selective derivative of 1. Our structural analysis shows that the ability of the ligand to insert its benzyl imidazole substituent into site 1, a different side pocket off the ATP binding cavity, is the key to exposing site 2 in Grp94. | ||
| - | + | Structure Based Design of a Grp94-Selective Inhibitor: Exploiting a Key Residue in Grp94 To Optimize Paralog-Selective Binding.,Que NLS, Crowley VM, Duerfeldt AS, Zhao J, Kent CN, Blagg BSJ, Gewirth DT J Med Chem. 2018 Apr 12;61(7):2793-2805. doi: 10.1021/acs.jmedchem.7b01608. Epub , 2018 Mar 20. PMID:29528635<ref>PMID:29528635</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | [[Category: | + | </div> |
| + | <div class="pdbe-citations 6ceo" style="background-color:#fffaf0;"></div> | ||
| + | == References == | ||
| + | <references/> | ||
| + | __TOC__ | ||
| + | </StructureSection> | ||
| + | [[Category: Gewirth, D T]] | ||
| + | [[Category: Que, N L.S]] | ||
| + | [[Category: Chaperone]] | ||
| + | [[Category: Chaperone-inhibitor complex]] | ||
| + | [[Category: Inhibitor]] | ||
Revision as of 05:44, 18 April 2018
Structure of Hsp90 NTD with a GRP94-selective resorcinylic inhibitor.
| |||||||||||
