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Updated: Jun 11, 2026
Production of Human Norovirus Protruding Domains in E. coli for X-ray Crystallography
Published on: April 19, 2016
Crystallization and preliminary X-ray diffraction analysis of the N-terminal domain of human coronavirus OC43
I Jung Chen1, Chia Cheng Chou, Chia Ling Liu
1Department of Life Sciences, National Chung Hsing University, Taichung 402, Taiwan.
Abstract:
The N-terminal domain of nucleocapsid protein from human coronavirus OC43 (HCoV-OC43 N-NTD) mostly contains positively charged residues and has been identified as being responsible for RNA binding during ribonucleocapsid formation in the coronavirus. In this study, the crystallization and preliminary crystallographic analysis of HCoV-OC43 N-NTD (amino acids 58-195) with a molecular weight of 20 kDa are reported. HCoV-OC43 N-NTD was crystallized at 293 K using PEG 1500 as a precipitant and a 99.9% complete native data set was collected to 1.7 A resolution at 100 K with an overall R(merge) of 5.0%. The crystals belonged to the hexagonal space group P6(5), with unit-cell parameters a = 81.57, c = 42.87 A. Solvent-content calculations suggest that there is likely to be one subunit of N-NTD in the asymmetric unit.
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