2o1w: Difference between revisions

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[[Image:2o1w.png|left|200px]]


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==Structure of N-terminal plus middle domains (N+M) of GRP94==
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<StructureSection load='2o1w' size='340' side='right'caption='[[2o1w]], [[Resolution|resolution]] 3.40&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[2o1w]] is a 5 chain structure with sequence from [https://en.wikipedia.org/wiki/Canis_lupus_familiaris Canis lupus familiaris]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2O1W OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2O1W FirstGlance]. <br>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 3.4&#8491;</td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2o1w FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2o1w OCA], [https://pdbe.org/2o1w PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2o1w RCSB], [https://www.ebi.ac.uk/pdbsum/2o1w PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2o1w ProSAT]</span></td></tr>
{{STRUCTURE_2o1w|  PDB=2o1w  |  SCENE=  }}
</table>
== Function ==
[https://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).
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
  <jmolCheckbox>
    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/o1/2o1w_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=2o1w ConSurf].
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== 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.


===Structure of N-terminal plus middle domains (N+M) of GRP94===
Structures of GRP94-nucleotide complexes reveal mechanistic differences between the hsp90 chaperones.,Dollins DE, Warren JJ, Immormino RM, Gewirth DT Mol Cell. 2007 Oct 12;28(1):41-56. PMID:17936703<ref>PMID:17936703</ref>


From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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<div class="pdbe-citations 2o1w" style="background-color:#fffaf0;"></div>


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==See Also==
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*[[Heat Shock Protein structures|Heat Shock Protein structures]]
(as it appears on PubMed at http://www.pubmed.gov), where 17936703 is the PubMed ID number.
== References ==
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<references/>
{{ABSTRACT_PUBMED_17936703}}
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</StructureSection>
==About this Structure==
2O1W is a 5 chains structure of sequences from [http://en.wikipedia.org/wiki/Canis_lupus_familiaris Canis lupus familiaris]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2O1W OCA].
 
==Reference==
<ref group="xtra">PMID:17936703</ref><references group="xtra"/>
[[Category: Canis lupus familiaris]]
[[Category: Canis lupus familiaris]]
[[Category: Dollins, D E.]]
[[Category: Large Structures]]
[[Category: Gewirth, D T.]]
[[Category: Dollins DE]]
[[Category: Immormino, R M.]]
[[Category: Gewirth DT]]
[[Category: Warren, J J.]]
[[Category: Immormino RM]]
[[Category: Chaperone]]
[[Category: Warren JJ]]
[[Category: Endoplasmin]]
[[Category: Gp96]]
[[Category: Grp94]]
[[Category: Hsp82]]
[[Category: Hsp90]]
[[Category: Htpg]]
 
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