1yer

From Proteopedia

(Difference between revisions)

Revision as of 16:43, 29 January 2020

HUMAN HSP90 GELDANAMYCIN-BINDING DOMAIN, "CLOSED" CONFORMATION

Structural highlights

1yer is a 1 chain structure with sequence from Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[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.^[1] ^[2]

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

The Hsp90 chaperone is required for the activation of several families of eukaryotic protein kinases and nuclear hormone receptors, many of which are protooncogenic and play a prominent role in cancer. The geldanamycin antibiotic has antiproliferative and antitumor effects, as it binds to Hsp90, inhibits the Hsp90-mediated conformational maturation/refolding reaction, and results in the degradation of Hsp90 substrates. The structure of the geldanamycin-binding domain of Hsp90 (residues 9-232) reveals a pronounced pocket, 15 A deep, that is highly conserved across species. Geldanamycin binds inside this pocket, adopting a compact structure similar to that of a polypeptide chain in a turn conformation. This, and the pocket's similarity to substrate-binding sites, suggest that the pocket binds a portion of the polypeptide substrate and participates in the conformational maturation/refolding reaction.

Crystal structure of an Hsp90-geldanamycin complex: targeting of a protein chaperone by an antitumor agent.,Stebbins CE, Russo AA, Schneider C, Rosen N, Hartl FU, Pavletich NP Cell. 1997 Apr 18;89(2):239-50. PMID:9108479^[3]

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

References

↑ Martinez-Ruiz A, Villanueva L, Gonzalez de Orduna C, Lopez-Ferrer D, Higueras MA, Tarin C, Rodriguez-Crespo I, Vazquez J, Lamas S. S-nitrosylation of Hsp90 promotes the inhibition of its ATPase and endothelial nitric oxide synthase regulatory activities. Proc Natl Acad Sci U S A. 2005 Jun 14;102(24):8525-30. Epub 2005 Jun 3. PMID:15937123 doi:10.1073/pnas.0407294102
↑ Forsythe HL, Jarvis JL, Turner JW, Elmore LW, Holt SE. Stable association of hsp90 and p23, but Not hsp70, with active human telomerase. J Biol Chem. 2001 May 11;276(19):15571-4. Epub 2001 Mar 23. PMID:11274138 doi:10.1074/jbc.C100055200
↑ Stebbins CE, Russo AA, Schneider C, Rosen N, Hartl FU, Pavletich NP. Crystal structure of an Hsp90-geldanamycin complex: targeting of a protein chaperone by an antitumor agent. Cell. 1997 Apr 18;89(2):239-50. PMID:9108479

1 Structural highlights
2 Function
3 Evolutionary Conservation
4 Publication Abstract from PubMed
5 See Also
6 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1yer"

@@ Line 1: / Line 1: @@
 ==HUMAN HSP90 GELDANAMYCIN-BINDING DOMAIN, "CLOSED" CONFORMATION==
-<StructureSection load='1yer' size='340' side='right' caption='[[1yer]], [[Resolution|resolution]] 1.65&Aring;' scene=''>
+<StructureSection load='1yer' size='340' side='right'caption='[[1yer]], [[Resolution|resolution]] 1.65&Aring;' scene=''>
 == Structural highlights ==
 <table><tr><td colspan='2'>[[1yer]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1YER OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1YER FirstGlance]. <br>
@@ Line 29: / Line 29: @@
 ==See Also==
-*[[Heat Shock Proteins|Heat Shock Proteins]]
+*[[Heat Shock Protein structures|Heat Shock Protein structures]]
 == References ==
 <references/>
@@ Line 35: / Line 35: @@
 </StructureSection>
 [[Category: Human]]
+[[Category: Large Structures]]
 [[Category: Pavletich, N P]]
 [[Category: Russo, A A]]

1yer

From Proteopedia

Revision as of 16:43, 29 January 2020

HUMAN HSP90 GELDANAMYCIN-BINDING DOMAIN, "CLOSED" CONFORMATION

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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