1YC4

Crystal structure of human HSP90alpha complexed with dihydroxyphenylpyrazoles

1YC4 の概要

• エントリーDOI: 10.2210/pdb1yc4/pdb
• 関連するPDBエントリー: 1yc1 1yc3
• 分子名称: Heat shock protein HSP 90-alpha, 4-(1H-IMIDAZOL-4-YL)-3-(5-ETHYL-2,4-DIHYDROXY-PHENYL)-1H-PYRAZOLE (3 entities in total)
• 機能のキーワード: cell-cycle, cancer, drug design, cell cycle
• 由来する生物種: Homo sapiens (human)
• 細胞内の位置: Cytoplasm: P07900
• タンパク質・核酸の鎖数: 1
• 化学式量合計: 30080.57

構造登録者

Kreusch, A.,Han, S.,Brinker, A.,Zhou, V.,Choi, H.,He, Y.,Lesley, S.A.,Caldwell, J.,Gu, X. (登録日: 2004-12-21, 公開日: 2005-02-22, 最終更新日: 2024-02-14)

主引用文献

Kreusch, A.,Han, S.,Brinker, A.,Zhou, V.,Choi, H.S.,He, Y.,Lesley, S.A.,Caldwell, J.,Gu, X.J.
Crystal structures of human HSP90alpha-complexed with dihydroxyphenylpyrazoles.
Bioorg.Med.Chem.Lett., 15:1475-1478, 2005

PubMed Abstract: A series of dihydroxyphenylpyrazole compounds were identified as a unique class of reversible Hsp90 inhibitors. The crystal structures for two of the identified compounds complexed with the N-terminal ATP binding domain of human Hsp90alpha were determined. The dihydroxyphenyl ring of the compounds fits deeply into the adenine binding pocket with the C2 hydroxyl group forming a direct hydrogen bond with the side chain of Asp93. The pyrazole ring forms hydrogen bonds to the backbone carbonyl of Gly97, the hydroxyl group of Thr184 and to a water molecule, which is present in all of the published HSP90 structures. One of the identified compounds (G3130) demonstrated cellular activities (in Her-2 degradation and activation of Hsp70 promoter) consistent with the inhibition of cellular Hsp90 functions.

PubMed: 15713410
DOI: 10.1016/j.bmcl.2004.12.087

実験手法

X-RAY DIFFRACTION (1.81 Å)