View source for 6c91


==Structure of GRP94 with a resorcinylic inhibitor.==
<StructureSection load='6c91' size='340' side='right' caption='[[6c91]], [[Resolution|resolution]] 2.90&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[6c91]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Canlf Canlf]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6C91 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6C91 FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=EQD:5-[2-(1-benzyl-1H-imidazol-2-yl)ethyl]-4,6-dichlorobenzene-1,3-diol'>EQD</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">HSP90B1, GRP94, TRA1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9615 CANLF])</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=6c91 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6c91 OCA], [http://pdbe.org/6c91 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6c91 RCSB], [http://www.ebi.ac.uk/pdbsum/6c91 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6c91 ProSAT]</span></td></tr>
</table>
== Function ==
[[http://www.uniprot.org/uniprot/ENPL_CANLF ENPL_CANLF]] Molecular chaperone that functions in the processing and transport of secreted proteins. When associated with CNPY3, required for proper folding of Toll-like receptors. Functions in endoplasmic reticulum associated degradation (ERAD). Has ATPase activity (By similarity). 
<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&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 6c91" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Canlf]]
[[Category: Gewirth, D T]]
[[Category: Que, N L.S]]
[[Category: Chaperone]]
[[Category: Chaperone-inhibitor complex]]
[[Category: Endoplasmin]]
[[Category: Inhibitor]]