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| | <StructureSection load='2xk2' size='340' side='right'caption='[[2xk2]], [[Resolution|resolution]] 1.95Å' scene=''> | | <StructureSection load='2xk2' size='340' side='right'caption='[[2xk2]], [[Resolution|resolution]] 1.95Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[2xk2]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2XK2 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2XK2 FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[2xk2]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2XK2 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2XK2 FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ADP:ADENOSINE-5-DIPHOSPHATE'>ADP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.95Å</td></tr> |
| - | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[2cdd|2cdd]], [[1yes|1yes]], [[1uy9|1uy9]], [[1byq|1byq]], [[2bsm|2bsm]], [[1osf|1osf]], [[2wi3|2wi3]], [[1uy8|1uy8]], [[2bug|2bug]], [[2wi4|2wi4]], [[2uwd|2uwd]], [[2xhx|2xhx]], [[2wi7|2wi7]], [[2bt0|2bt0]], [[1yer|1yer]], [[2xdu|2xdu]], [[1uyg|1uyg]], [[2bz5|2bz5]], [[2ccu|2ccu]], [[2xds|2xds]], [[2xdx|2xdx]], [[2ccs|2ccs]], [[1uyf|1uyf]], [[1yc3|1yc3]], [[1uyi|1uyi]], [[2xjj|2xjj]], [[1uyd|1uyd]], [[2byi|2byi]], [[2xdl|2xdl]], [[2wi2|2wi2]], [[2vci|2vci]], [[1uy6|1uy6]], [[2wi1|2wi1]], [[2vcj|2vcj]], [[1yc4|1yc4]], [[2xjx|2xjx]], [[2c2l|2c2l]], [[2fwz|2fwz]], [[2xdk|2xdk]], [[1uyh|1uyh]], [[2xjg|2xjg]], [[1uyk|1uyk]], [[2cct|2cct]], [[2fwy|2fwy]], [[1uyl|1uyl]], [[1uye|1uye]], [[2wi6|2wi6]], [[2xab|2xab]], [[1yc1|1yc1]], [[2xhr|2xhr]], [[2xht|2xht]], [[1uyc|1uyc]], [[1uy7|1uy7]], [[1yet|1yet]], [[2jjc|2jjc]], [[2byh|2byh]], [[2wi5|2wi5]]</div></td></tr> | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ADP:ADENOSINE-5-DIPHOSPHATE'>ADP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr> |
| | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2xk2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2xk2 OCA], [https://pdbe.org/2xk2 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2xk2 RCSB], [https://www.ebi.ac.uk/pdbsum/2xk2 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2xk2 ProSAT]</span></td></tr> | | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2xk2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2xk2 OCA], [https://pdbe.org/2xk2 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2xk2 RCSB], [https://www.ebi.ac.uk/pdbsum/2xk2 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2xk2 ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[https://www.uniprot.org/uniprot/HS90A_HUMAN 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.<ref>PMID:15937123</ref> <ref>PMID:11274138</ref>
| + | [https://www.uniprot.org/uniprot/HS90A_HUMAN 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.<ref>PMID:15937123</ref> <ref>PMID:11274138</ref> |
| | == Evolutionary Conservation == | | == Evolutionary Conservation == |
| | [[Image:Consurf_key_small.gif|200px|right]] | | [[Image:Consurf_key_small.gif|200px|right]] |
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| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Human]] | + | [[Category: Homo sapiens]] |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Callaghan, O]] | + | [[Category: Callaghan O]] |
| - | [[Category: Carr, M G]] | + | [[Category: Carr MG]] |
| - | [[Category: Chessari, G]] | + | [[Category: Chessari G]] |
| - | [[Category: Congreve, M]] | + | [[Category: Congreve M]] |
| - | [[Category: Cowan, S]] | + | [[Category: Cowan S]] |
| - | [[Category: Coyle, J E]] | + | [[Category: Coyle JE]] |
| - | [[Category: Downham, R]] | + | [[Category: Downham R]] |
| - | [[Category: Figueroa, E]] | + | [[Category: Figueroa E]] |
| - | [[Category: Frederickson, M]] | + | [[Category: Frederickson M]] |
| - | [[Category: Graham, B]] | + | [[Category: Graham B]] |
| - | [[Category: McMenamin, R]] | + | [[Category: McMenamin R]] |
| - | [[Category: Murray, C W]] | + | [[Category: Murray CW]] |
| - | [[Category: OBrien, M A]] | + | [[Category: OBrien MA]] |
| - | [[Category: Patel, S]] | + | [[Category: Patel S]] |
| - | [[Category: Phillips, T R]] | + | [[Category: Phillips TR]] |
| - | [[Category: Williams, G]] | + | [[Category: Williams G]] |
| - | [[Category: Woodhead, A J]] | + | [[Category: Woodhead AJ]] |
| - | [[Category: Woolford, A J.A]] | + | [[Category: Woolford AJA]] |
| - | [[Category: Chaperone]]
| + | |
| - | [[Category: Stress response]]
| + | |
| Structural highlights
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
Inhibitors of the chaperone Hsp90 are potentially useful as chemotherapeutic agents in cancer. This paper describes an application of fragment screening to Hsp90 using a combination of NMR and high throughput X-ray crystallography. The screening identified an aminopyrimidine with affinity in the high micromolar range and subsequent structure-based design allowed its optimization into a low nanomolar series with good ligand efficiency. A phenolic chemotype was also identified in fragment screening and was found to bind with affinity close to 1 mM. This fragment was optimized using structure based design into a resorcinol lead which has subnanomolar affinity for Hsp90, excellent cell potency, and good ligand efficiency. This fragment to lead campaign improved affinity for Hsp90 by over 1,000,000-fold with the addition of only six heavy atoms. The companion paper (DOI: 10.1021/jm100060b) describes how the resorcinol lead was optimized into a compound that is now in clinical trials for the treatment of cancer.
Fragment-based drug discovery applied to hsp90. Discovery of two lead series with high ligand efficiency.,Murray CW, Carr MG, Callaghan O, Chessari G, Congreve M, Cowan S, Coyle JE, Downham R, Figueroa E, Frederickson M, Graham B, McMenamin R, O'Brien MA, Patel S, Phillips TR, Williams G, Woodhead AJ, Woolford AJ J Med Chem. 2010 Aug 26;53(16):5942-55. PMID:20718493[3]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
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
- ↑ Murray CW, Carr MG, Callaghan O, Chessari G, Congreve M, Cowan S, Coyle JE, Downham R, Figueroa E, Frederickson M, Graham B, McMenamin R, O'Brien MA, Patel S, Phillips TR, Williams G, Woodhead AJ, Woolford AJ. Fragment-based drug discovery applied to hsp90. Discovery of two lead series with high ligand efficiency. J Med Chem. 2010 Aug 26;53(16):5942-55. PMID:20718493 doi:10.1021/jm100059d
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