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4l94

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Revision as of 02:02, 5 August 2016

Crystal structure of Human Hsp90 with S46

Structural highlights

4l94 is a 1 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Related:	4l8z, 4l90, 4l91, 4l93
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]

Publication Abstract from PubMed

Heat shock protein 90 (HSP90) is a molecular chaperone to fold and maintain the proper conformation of many signaling proteins, especially some oncogenic proteins and mutated unstable proteins. Inhibition of HSP90 was recognized as an effective approach to simultaneously suppress several aberrant signaling pathways, and therefore it was considered as a novel target for cancer therapy. Here, by integrating several techniques including the fragment-based drug discovery method, fragment merging, computer aided inhibitor optimization, and structure-based drug design, we were able to identify a series of HSP90 inhibitors. Among them, inhibitors 13, 32, 36 and 40 can inhibit HSP90 with IC50 about 20-40 nM, which is at least 200-fold more potent than initial fragments in the protein binding assay. These new HSP90 inhibitors not only explore interactions with an under-studied subpocket, also offer new chemotypes for the development of novel HSP90 inhibitors as anticancer drugs.

Identification of a new series of potent diphenol HSP90 inhibitors by fragment merging and structure-based optimization.,Ren J, Li J, Wang Y, Chen W, Shen A, Liu H, Chen D, Cao D, Li Y, Zhang N, Xu Y, Geng M, He J, Xiong B, Shen J Bioorg Med Chem Lett. 2014 Jun 1;24(11):2525-9. doi: 10.1016/j.bmcl.2014.03.100. , Epub 2014 Apr 8. PMID:24751441^[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
↑ Ren J, Li J, Wang Y, Chen W, Shen A, Liu H, Chen D, Cao D, Li Y, Zhang N, Xu Y, Geng M, He J, Xiong B, Shen J. Identification of a new series of potent diphenol HSP90 inhibitors by fragment merging and structure-based optimization. Bioorg Med Chem Lett. 2014 Jun 1;24(11):2525-9. doi: 10.1016/j.bmcl.2014.03.100. , Epub 2014 Apr 8. PMID:24751441 doi:http://dx.doi.org/10.1016/j.bmcl.2014.03.100

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/4l94"

@@ Line 1: / Line 1: @@
 ==Crystal structure of Human Hsp90 with S46==
 <StructureSection load='4l94' size='340' side='right' caption='[[4l94]], [[Resolution|resolution]] 1.65&Aring;' scene=''>
@@ Line 5: / Line 6: @@
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=S46:(4-HYDROXYPHENYL)(4-METHYLPIPERAZIN-1-YL)METHANONE'>S46</scene></td></tr>
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4l8z|4l8z]], [[4l90|4l90]], [[4l91|4l91]], [[4l93|4l93]]</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=4l94 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4l94 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4l94 RCSB], [http://www.ebi.ac.uk/pdbsum/4l94 PDBsum]</span></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=4l94 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4l94 OCA], [http://pdbe.org/4l94 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4l94 RCSB], [http://www.ebi.ac.uk/pdbsum/4l94 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4l94 ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 17: / Line 18: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 4l94" style="background-color:#fffaf0;"></div>
+==See Also==
+*[[Heat Shock Proteins|Heat Shock Proteins]]
 == References ==
 <references/>

4l94

From Proteopedia

Revision as of 02:02, 5 August 2016

Crystal structure of Human Hsp90 with S46

Structural highlights

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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