2o1u

<StructureSection load='2o1u' size='340' side='right' caption='[[2o1u]], [[Resolution|resolution]] 2.40&Aring;' scene=''>

<table><tr><td colspan='2'>[[2o1u]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Canlf Canlf]. The December 2008 RCSB PDB [http://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/index.html Molecule of the Month] feature on ''Hsp90'' by David Goodsell is [http://dx.doi.org/10.2210/rcsb_pdb/mom_2008_12 10.2210/rcsb_pdb/mom_2008_12]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2O1U OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2O1U FirstGlance]. <br>

</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=ANP:PHOSPHOAMINOPHOSPHONIC+ACID-ADENYLATE+ESTER'>ANP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr>

<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2o1v|2o1v]], [[2o1w|2o1w]], [[2o1t|2o1t]], [[1tc6|1tc6]]</td></tr>

<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">HSP90B1, 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=2o1u FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2o1u OCA], [http://pdbe.org/2o1u PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2o1u RCSB], [http://www.ebi.ac.uk/pdbsum/2o1u PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2o1u ProSAT]</span></td></tr>

[[http://www.uniprot.org/uniprot/ENPL_CANFA ENPL_CANFA]] 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).

<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/o1/2o1u_consurf.spt"</scriptWhenChecked>

<div style="background-color:#fffaf0;">

== Publication Abstract from PubMed ==

GRP94, an essential endoplasmic reticulum chaperone, is required for the conformational maturation of proteins destined for cell-surface display or export. The extent to which GRP94 and its cytosolic paralog, Hsp90, share a common mechanism remains controversial. GRP94 has not been shown conclusively to hydrolyze ATP or bind cochaperones, and both activities, by contrast, result in conformational changes and N-terminal dimerization in Hsp90 that are critical for its function. Here, we report the 2.4 A crystal structure of mammalian GRP94 in complex with AMPPNP and ADP. The chaperone is conformationally insensitive to the identity of the bound nucleotide, adopting a "twisted V" conformation that precludes N-terminal domain dimerization. We also present conclusive evidence that GRP94 possesses ATPase activity. Our observations provide a structural explanation for GRP94's observed rate of ATP hydrolysis and suggest a model for the role of ATP binding and hydrolysis in the GRP94 chaperone cycle.

 

== References ==

[[Category: Canlf]]

[[Category: Dollins, D E]]

[[Category: Gewirth, D T]]

[[Category: Immormino, R M]]

[[Category: Warren, J J]]

[[Category: Htpg]]