Crystal Structure of a Histone Deacetylase Homologue from Pseudomonas aeruginosa.
Crystal Structure of a Histone Deacetylase Homologue from Pseudomonas aeruginosa.
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铜绿假单胞菌组蛋白脱乙酰酶同源物的晶体结构
DOI:
10.1021/acs.biochem.6b00613
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发表时间:
2016
期刊:
影响因子:
2.9
通讯作者:
Meyer-Almes FJ
中科院分区:
文献类型:
--
作者:
Krämer A;Wagner T;Yildiz Ö;Meyer-Almes FJ
Despite the recently growing interest in the acetylation of lysine residues by prokaryotic enzymes, the underlying biological function is still not well understood. Deacetylation is accomplished by proteins that belong to the histone deacetylase (HDAC) superfamily. In this report, we present the first crystal structure of PA3774, a histone deacetylase homologue from the human pathogenPseudomonas aeruginosathat shares a high degree of homology with class IIb HDACs. We determined the crystal structure of the ligand-free enzyme and protein–ligand complexes with a trifluoromethylketone inhibitor and the reaction product acetate. Moreover, we produced loss of function mutants and determined the structure of the inhibitor-free PA3774H143Amutant, the inhibitor-free PA3774Y313Fmutant, and the PA3774Y313Fmutant in complex with the highly selective hydroxamate inhibitor PFSAHA. The overall structure reveals that the exceptionally long L1 loop mediates the formation of a tetramer composed of two “head-to-head” dimers. The distinctive dimer interface significantly confines the entrance area of the active site, suggesting a crucial role for substrate recognition and selectivity.
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影响因子:
2.9
作者:
Lombardi PM;Angell HD;Whittington DA;Flynn EF;Rajashankar KR;Christianson DW
通讯作者:
Christianson DW
影响因子:
14.8
作者:
Miyake, Yasuyuki;Keusch, Jeremy J.;Matthias, Patrick
通讯作者:
Matthias, Patrick
影响因子:
2.9
作者:
Dowling, Daniel P.;Gantt, Stephanie L.;Gattis, Samuel G.;Fierke, Carol A.;Christianson, David W.
通讯作者:
Christianson, David W.
影响因子:
--
作者:
Krämer A;Herzer J;Overhage J;Meyer-Almes FJ
通讯作者:
Meyer-Almes FJ
影响因子:
3.2
作者:
Sakurada, K;Ohta, T;Aisaka, K
通讯作者:
Aisaka, K