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6hfm

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Hsp90 co-chaperone Cns1 C-domain from Saccharomyces cerevisiae

Structural highlights

6hfm is a 2 chain structure with sequence from Atcc 18824. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Gene:	CNS1, YBR155W, YBR1205 (ATCC 18824)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[CNS1_YEAST] Co-chaperone that binds to the molecular chaperones Hsp90 (HSC82 and HSP82) and Hsp70 (SSA1). Stimulates SSA1 ATPase activity, but not Hsp90 ATPase activity. Involved in only a subset of Hsp90 functions.^[1] ^[2]

Publication Abstract from PubMed

The Hsp90 chaperone machinery in eukaryotes comprises a number of distinct accessory factors. Cns1 is one of the few essential co-chaperones in yeast, but its structure and function remained unknown. Here, we report the X-ray structure of the Cns1 fold and NMR studies on the partly disordered, essential segment of the protein. We demonstrate that Cns1 is important for maintaining translation elongation, specifically chaperoning the elongation factor eEF2. In this context, Cns1 interacts with the novel co-factor Hgh1 and forms a quaternary complex together with eEF2 and Hsp90. The in vivo folding and solubility of eEF2 depend on the presence of these proteins. Chaperoning of eEF2 by Cns1 is essential for yeast viability and requires a defined subset of the Hsp90 machinery as well as the identified eEF2 recruiting factor Hgh1.

The Co-chaperone Cns1 and the Recruiter Protein Hgh1 Link Hsp90 to Translation Elongation via Chaperoning Elongation Factor 2.,Schopf FH, Huber EM, Dodt C, Lopez A, Biebl MM, Rutz DA, Muhlhofer M, Richter G, Madl T, Sattler M, Groll M, Buchner J Mol Cell. 2019 Mar 8. pii: S1097-2765(19)30101-7. doi:, 10.1016/j.molcel.2019.02.011. PMID:30876805^[3]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Tesic M, Marsh JA, Cullinan SB, Gaber RF. Functional interactions between Hsp90 and the co-chaperones Cns1 and Cpr7 in Saccharomyces cerevisiae. J Biol Chem. 2003 Aug 29;278(35):32692-701. doi: 10.1074/jbc.M304315200. Epub, 2003 Jun 4. PMID:12788914 doi:http://dx.doi.org/10.1074/jbc.M304315200
↑ Hainzl O, Wegele H, Richter K, Buchner J. Cns1 is an activator of the Ssa1 ATPase activity. J Biol Chem. 2004 May 28;279(22):23267-73. Epub 2004 Mar 25. PMID:15044454 doi:http://dx.doi.org/10.1074/jbc.M402189200
↑ Schopf FH, Huber EM, Dodt C, Lopez A, Biebl MM, Rutz DA, Muhlhofer M, Richter G, Madl T, Sattler M, Groll M, Buchner J. The Co-chaperone Cns1 and the Recruiter Protein Hgh1 Link Hsp90 to Translation Elongation via Chaperoning Elongation Factor 2. Mol Cell. 2019 Mar 8. pii: S1097-2765(19)30101-7. doi:, 10.1016/j.molcel.2019.02.011. PMID:30876805 doi:http://dx.doi.org/10.1016/j.molcel.2019.02.011

1 Structural highlights
2 Function
3 Publication Abstract from PubMed
4 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/6hfm"

@@ Line 3: / Line 3: @@
 <StructureSection load='6hfm' size='340' side='right'caption='[[6hfm]], [[Resolution|resolution]] 1.55&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[6hfm]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6HFM OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6HFM FirstGlance]. <br>
+<table><tr><td colspan='2'>[[6hfm]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Atcc_18824 Atcc 18824]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6HFM OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6HFM FirstGlance]. <br>
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr>
+<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">CNS1, YBR155W, YBR1205 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=4932 ATCC 18824])</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=6hfm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6hfm OCA], [http://pdbe.org/6hfm PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6hfm RCSB], [http://www.ebi.ac.uk/pdbsum/6hfm PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6hfm ProSAT]</span></td></tr>
 </table>
@@ Line 22: / Line 23: @@
 __TOC__
 </StructureSection>
+[[Category: Atcc 18824]]
 [[Category: Large Structures]]
 [[Category: Groll, M]]

6hfm

From Proteopedia

Current revision

Hsp90 co-chaperone Cns1 C-domain from Saccharomyces cerevisiae

Structural highlights

Function

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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