Structural studies of the Nudix hydrolase DR1025 from Deinococcus radiodurans and its ligand complexes.
Structural studies of the Nudix hydrolase DR1025 from Deinococcus radiodurans and its ligand complexes.
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来自耐辐射奇球菌的 Nudix 水解酶 DR1025 及其配体复合物的结构研究。
DOI:
10.1016/j.jmb.2004.01.065
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发表时间:
2004
期刊:
影响因子:
--
通讯作者:
Holbrook,StephenR
中科院分区:
文献类型:
--
作者:
Ranatunga,Wasantha;Hill,EmmaE;Mooster,JanaL;Holbrook,ElizabethL;Schulze-Gahmen,Ursula;Xu,WenLian;Bessman,MauriceJ;Brenner,StevenE;Holbrook,StephenR
We have determined the crystal structure, at 1.4Å, of the Nudix hydrolase DR1025 from the extremely radiation resistant bacterium Deinococcus radiodurans. The protein forms an intertwined homodimer by exchanging N-terminal segments between chains. We have identified additional conserved elements of the Nudix fold, including the metal-binding motif, a kinked β-strand characterized by a proline two positions upstream of the Nudix consensus sequence, and participation of the N-terminal extension in the formation of the substrate-binding pocket. Crystal structures were also solved of DR1025 crystallized in the presence of magnesium and either a GTP analog or Ap4A (both at 1.6Å resolution). In the Ap4A co-crystal, the electron density indicated that the product of asymmetric hydrolysis, ATP, was bound to the enzyme. The GTP analog bound structure showed that GTP was bound almost identically as ATP. Neither nucleoside triphosphate was further cleaved.
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影响因子:
56.9
作者:
White, O;Eisen, JA;Fraser, CM
通讯作者:
Fraser, CM
影响因子:
4.8
作者:
M. Bessman;J. Walsh;Christopher A. Dunn;Jyothishmathi Swaminathan;John E. Weldon;Jianying Shen
通讯作者:
Jianying Shen
DOI:
10.1107/s0907444903002671
发表时间:
2003
期刊:
Acta crystallographica. Section D, Biological crystallography
影响因子:
--
作者:
E. L. Holbrook;U. Schulze;G. W. Buchko;S. Ni;M. Kennedy;S. Holbrook
通讯作者:
S. Holbrook
DOI:
10.1073/pnas.181466998
发表时间:
2001-11-06
影响因子:
11.1
作者:
Bonanno, JB;Edo, C;Burley, SK
通讯作者:
Burley, SK
影响因子:
4.8
作者:
Conyers, GB;Bessman, MJ
通讯作者:
Bessman, MJ