Analysis of protein hydration in ultrahigh-resolution structures of the SRP GTPase Ffh.
Analysis of protein hydration in ultrahigh-resolution structures of the SRP GTPase Ffh.
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SRP GTPase Ffh 超高分辨率结构中的蛋白质水合分析。
DOI:
10.1107/s0907444906040807
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发表时间:
2006
期刊:
影响因子:
--
通讯作者:
Freymann,DouglasM
中科院分区:
文献类型:
--
作者:
Ramirez,UrsulaD;Freymann,DouglasM
Two new structures of the SRP GTPase Ffh have been determined at 1.1 Å resolution and provide the basis for comparative examination of the extensive water structure of the apo conformation of these GTPases. A set of well defined water-binding positions have been identified in the active site of the two-domain `NG' GTPase, as well as at two functionally important interfaces. The water hydrogen-bonding network accommodates alternate conformations of the protein side chains by undergoing local rearrangements and, in one case, illustrates binding of a solute molecule within the active site by displacement of water molecules without further disruption of the water-interaction network. A subset of the water positions are well defined in several lower resolution structures, including those of different nucleotide-binding states; these appear to function in maintaining the protein structure. Consistent arrangements of surface water between three different ultrahigh-resolution structures provide a framework for beginning to understand how local water structure contributes to protein–ligand and protein–protein binding in the SRP GTPases.
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影响因子:
4.8
作者:
M. Simonović;K. Volz
通讯作者:
K. Volz
影响因子:
5.6
作者:
Nakasako, M
通讯作者:
Nakasako, M
DOI:
10.1002/prot.10286
发表时间:
2003-02-15
期刊:
PROTEINS-STRUCTURE FUNCTION AND GENETICS
影响因子:
--
作者:
Lovell, SC;Davis, IW;Richardson, DC
通讯作者:
Richardson, DC
DOI:
--
发表时间:
1999
期刊:
Medicinal research reviews (Print)
影响因子:
--
作者:
D. Ringe;C. Mattos
通讯作者:
C. Mattos
影响因子:
4.8
作者:
A. Yamano;N. Heo;M. Teeter
通讯作者:
M. Teeter