Time-of-flight neutron diffraction study of bovine γ-chymotrypsin at the Protein Crystallography Station.
Time-of-flight neutron diffraction study of bovine γ-chymotrypsin at the Protein Crystallography Station.
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在蛋白质晶体学站对牛γ-胰凝乳蛋白酶进行飞行时间中子衍射研究。
DOI:
10.1107/s1744309111009341
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发表时间:
2011
期刊:
影响因子:
--
通讯作者:
Ringe,Dagmar
中科院分区:
文献类型:
--
作者:
Lazar,LouisM;Fisher,SZoe;Moulin,AaronG;Kovalevsky,Andrey;Novak,WalterRP;Langan,Paul;Petsko,GregoryA;Ringe,Dagmar
The overarching goal of this research project is to determine, for a subset of proteins, exact hydrogen positions using neutron diffraction, thereby improving H-atom placement in proteins so that they may be better used in various computational methods that are critically dependent upon said placement. In order to be considered applicable for neutron diffraction studies, the protein of choice must be amenable to ultrahigh-resolution X-ray crystallography, be able to form large crystals (1 mm3 or greater) and have a modestly sized unit cell (no dimension longer than 100 Å). As such, γ-chymotrypsin is a perfect candidate for neutron diffraction. To understand and probe the role of specific active-site residues and hydrogen-bonding patterns in γ-chymotrypsin, neutron diffraction studies were initiated at the Protein Crystallography Station (PCS) at Los Alamos Neutron Science Center (LANSCE). A large single crystal was subjected to H/D exchange prior to data collection. Time-of-flight neutron diffraction data were collected to 2.0 Å resolution at the PCS with ∼85% completeness. Here, the first time-of-flight neutron data collection from γ-chymotrypsin is reported.
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DOI:
--
发表时间:
2004
期刊:
影响因子:
--
作者:
P. Langan;Gayle Greene
通讯作者:
Gayle Greene
DOI:
10.1107/s0907444910027198
发表时间:
2010
期刊:
Acta crystallographica. Section D, Biological crystallography
影响因子:
--
作者:
Kovalevsky,Andrey;Fisher,Zoe;Johnson,Hannah;Mustyakimov,Marat;Waltman,MaryJo;Langan,Paul
通讯作者:
Langan,Paul
DOI:
10.1107/s0907444910026582
发表时间:
2010-11-01
影响因子:
2.2
作者:
Afonine, Pavel V.;Mustyakimov, Marat;Adams, Paul D.
通讯作者:
Adams, Paul D.
影响因子:
2.9
作者:
S. Parsons;M. Raftery
通讯作者:
M. Raftery
DOI:
10.1107/s0108767307043498
发表时间:
2008
期刊:
Acta crystallographica. Section A, Foundations of crystallography
影响因子:
--
作者:
N. Niimura;R. Bau
通讯作者:
N. Niimura;R. Bau