Molecular characterization of human group C rotavirus genes 6, 7 and 9


James, Vivenna L.A., Lambden, Paul R., Deng, Yu, Caul, E. Owen and Clarke, Ian N. (1999) Molecular characterization of human group C rotavirus genes 6, 7 and 9. Journal of General Virology, 80, (12), 3181-3187. (PMID:10567650).

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Description/Abstract

Genes 6, 7 and 9 of human group C rotavirus 'Bristol' strain, encoding non-structural proteins (NSP) 3, 1 and 2, respectively, were cloned and sequenced. Human group C rotavirus genome segment 6 is 1350 bp and contains a single ORF of 1231 nucleotides (encoding 402 amino acids). Genome segment 7 is 1270 bp and encodes a protein of 394 amino acids and genome segment 9 is 1037 bp and encodes a 312 amino acid protein. The human group C rotavirus genes 6, 7 and 9 showed 78, 67 and 88% sequence identity, respectively, to the corresponding porcine group C rotavirus genes. The derived protein sequences were compared with those of the porcine 'Cowden' group C and mammalian group A rotavirus strains. The human group C rotavirus NSP1 protein sequence is one amino acid longer than the porcine group C equivalent. In common with group A and porcine group C rotaviruses, the human group C rotavirus NSP1 protein has a zinc finger motif. Human group C rotavirus NSP2 has two hydrophobic heptad repeat regions, a basic, RNA-binding domain and a basic, proline-rich region. Human group C rotavirus NSP3 has both single- and double-stranded RNA-binding domains and several hydrophobic heptad repeat regions, one of which forms a leucine zipper. This work completes the molecular characterization of the non-structural proteins of a human group C rotavirus. Phylogenetic analysis of all the non-structural genes of group A, B and C rotaviruses suggests that these viruses have diverged at a constant rate from a common ancestor.

Item Type: Article
ISSNs: 0022-1317 (print)
1465-2099 (electronic)
Related URLs:
Subjects: Q Science > QH Natural history > QH426 Genetics
Q Science > QR Microbiology > QR355 Virology
R Medicine > RB Pathology
Divisions: University Structure - Pre August 2011 > School of Medicine > Infection, Inflammation and Repair
ePrint ID: 194179
Date Deposited: 25 Jul 2011 15:18
Last Modified: 27 Mar 2014 19:44
URI: http://eprints.soton.ac.uk/id/eprint/194179

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