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2h55
From Proteopedia
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| - | [[Image:2h55.gif|left|200px]] | + | [[Image:2h55.gif|left|200px]] |
| - | + | ||
| - | '''Structure of human Hsp90-alpha bound to the potent water soluble inhibitor PU-DZ8''' | + | {{Structure |
| + | |PDB= 2h55 |SIZE=350|CAPTION= <scene name='initialview01'>2h55</scene>, resolution 2.00Å | ||
| + | |SITE= | ||
| + | |LIGAND= <scene name='pdbligand=DZ8:2-FLUORO-8-[(6-IODO-1,3-BENZODIOXOL-5-YL)METHYL]-9-[3-(ISOPROPYLAMINO)PROPYL]-9H-PURIN-6-AMINE'>DZ8</scene> | ||
| + | |ACTIVITY= | ||
| + | |GENE= HSPCA ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens]) | ||
| + | }} | ||
| + | |||
| + | '''Structure of human Hsp90-alpha bound to the potent water soluble inhibitor PU-DZ8''' | ||
| + | |||
==Overview== | ==Overview== | ||
| Line 7: | Line 16: | ||
==About this Structure== | ==About this Structure== | ||
| - | 2H55 is a [ | + | 2H55 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2H55 OCA]. |
==Reference== | ==Reference== | ||
| - | Structural and quantum chemical studies of 8-aryl-sulfanyl adenine class Hsp90 inhibitors., Immormino RM, Kang Y, Chiosis G, Gewirth DT, J Med Chem. 2006 Aug 10;49(16):4953-60. PMID:[http:// | + | Structural and quantum chemical studies of 8-aryl-sulfanyl adenine class Hsp90 inhibitors., Immormino RM, Kang Y, Chiosis G, Gewirth DT, J Med Chem. 2006 Aug 10;49(16):4953-60. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/16884307 16884307] |
[[Category: Homo sapiens]] | [[Category: Homo sapiens]] | ||
[[Category: Single protein]] | [[Category: Single protein]] | ||
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[[Category: purine]] | [[Category: purine]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 17:12:46 2008'' |
Revision as of 15:12, 20 March 2008
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| , resolution 2.00Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | |||||||
| Gene: | HSPCA (Homo sapiens) | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
Structure of human Hsp90-alpha bound to the potent water soluble inhibitor PU-DZ8
Overview
Hsp90 chaperones play a critical role in modulating the activity of many cell signaling proteins and are an attractive target for anti-cancer therapeutics. We report here the structures of the water soluble 8-aryl-sulfanyl adenine class Hsp90 inhibitors, 1 (PU-H71) and 2 (PU-H64), in complex with the N-terminal domain of human Hsp90alpha. The conformation of 1 when bound to Hsp90 differs from previously reported 8-aryl adenine Hsp90 inhibitors including 3 (PU24FCl). While the binding mode for 3 places the 2'-halide of the 8-aryl group on top of the adenine ring, for 1 and 2, we show that the 2'-halide is rotated approximately 180 degrees away. This difference explains the opposing trends in Hsp90 inhibitory activity for the 2'-halo derivatives of the 3',4',5'-trimethoxy series where Cl > Br > I compared to the 4',5'-methylenedioxy series where I > Br > Cl. We also present quantum chemical calculations of 2 and its analogues that illuminate their basis for Hsp90 inhibition. The calculated conformation of 2 agreed well with the crystallographically observed conformations of 1 and 2. The predictive nature of the calculations has allowed the exploration of additional derivatives based on the 8-aryl adenine scaffold.
About this Structure
2H55 is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.
Reference
Structural and quantum chemical studies of 8-aryl-sulfanyl adenine class Hsp90 inhibitors., Immormino RM, Kang Y, Chiosis G, Gewirth DT, J Med Chem. 2006 Aug 10;49(16):4953-60. PMID:16884307
Page seeded by OCA on Thu Mar 20 17:12:46 2008
Categories: Homo sapiens | Single protein | Gewirth, D T. | Immormino, R M. | DZ8 | Chaperone | Dz8 | Grp94 | H64 | H71 | Hsp90 | Pu3 | Purine
