Home HOME Acta Virologica 2011 Acta Virologica Vol.55, No.3, p.273-278, 2011

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Quarterly, 72-88 pp. per issue
Founded: 1957
ISSN 0001-723X
E-ISSN 1336-2305

Published in English

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Acta Virologica Vol.55, No.3, p.273-278, 2011

Title: Evidence of conserved epitopes in variable region of VP8* subunit of VP4 protein of rotaviruses of P[8]-1 and P[8]-3 lineages
Author: J. F. CONTRERAS, G. E. MENCHACA, R. INFANTE, C. E. HERNÁNDEZ, C. RODRÍGUEZ, R. S. TAMEZ

Abstract: Although antibody responses to the human rotavirus VP4 protein have been reported, few studies have analyzed the specificity of these responses to the VP8* subunit. This study investigated antibody responses generated against the variable region of the VP4 protein (VP8* subunit) in children infected with rotavirus genotype P[8]. Recombinant VP8* subunit (rVP8*) and truncations corresponding aa 1–102
(peptide A) and 84-180 (peptide B) of rotavirus strains P[8]-1 and P[8]-3 lineages were expressed in Escherichia coli and examined for antibody reactivity using ELISA and Western blot assays. Sera from infected children had IgG antibodies that reacted with full-length rVP8*, peptide A and B of both lineages, with stronger reactivity observed against peptide B. In addition, anti-strain Wa (P[8]-1) and anti-rVP8* (P[8]-3) rabbit polyclonal antiserum reacted against peptide B sequences of both lineages. These data indicate that the VP8* variable region of rotavirus belonging to P[8]-1 and P[8]-3 lineages have conserved epitopes recognized by antibodies elicited during natural infections.

Keywords: antibodies; conserved epitopes; VP8* subunit; VP4 protein; P[8] lineage; rotaviruses
Year: 2011, Volume: 55, Issue: 3 Page From: 273, Page To: 278
doi:10.4149/av_2011_03_273


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