Sequence analysis of genome segment 10 encoding the major outer capsid protein (VP7) of genogroup B aquareovirus and its relationship with the VP7 protein of genogroup A aquareovirus

Summary

Genome segment 10 of the coho salmon (CSR) strain of genogroup B aquareovirus has been cloned and sequenced. The gene is at least 936 nucleotides in length and has a major open reading frame encoding a protein of 293 amino acids with a calculated molecular mass of 31.7 kDa. Comparison of nucleotide and deduced amino acid sequences of genome segment 10 of genogroup A and genogroup B strains indicated 55.7 and 36.5% identity at the nucleotide and amino acid level, respectively. Baculovirus expression and serological identification of the genome segment 10 product of the CSR strain indicated that this gene encodes the major outer capsid protein of genogroup B aquareovirus.