Crystallization and preliminary X-ray crystallographic analysis of the helicase domain of hepatitis C virus NS3 protein

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The NS3 protein of hepatitis C virus (HCV) is thought to be essential for viral replication. The N-terminal domain of the protein contains protease activity and the C-terminal domain contains nucleotide triphosphatase and RNA helicase activity. The RNA helicase domain of HCV NS3 protein was purified by using affinity-column chromatographic methods, and crystallized by using the microbatch crystallization method under oil at 277 K. The crystals belong to primitive trigonal space group P3(1)21 or P3(2)21 with cell dimensions of a = b = 93.3, c = 104.6 Angstrom. The asymmetric unit contains one molecule of the helicase domain, with the crystal volume per protein mass (V-m) of 2.50 Angstrom(3) Da(-1) and solvent content of about 50.8% by volume. A native data set to 2.3 Angstrom resolution was obtained from a frozen crystal indicating that the crystals are quite suitable for structure determination by multiple isomorphous replacement.
Publisher
BLACKWELL PUBLISHING
Issue Date
1998-01
Language
English
Article Type
Article
Keywords

NON-B-HEPATITIS; RNA HELICASE; CRYSTAL-STRUCTURE; NON-A; NONSTRUCTURAL PROTEIN-3; DNA HELICASE; BINDING; PESTIVIRUS; CLEAVAGE; ENCODES

Citation

ACTA CRYSTALLOGRAPHICA SECTION D-BIOLOGICAL CRYSTALLOGRAPHY, v.54, pp.121 - 123

ISSN
0907-4449
DOI
10.1107/S0907444997008883
URI
http://hdl.handle.net/10203/74292
Appears in Collection
BS-Journal Papers(저널논문)
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