Complete nucleotide sequence of a mumps virus genotype I strain isolated in Korea.

The complete nucleotide sequence of mumps virus isolated in Korea, Dg1062/Korea/98 (Dg1062), was determined. As other mumps viruses, its genome was to be 15,384 nucleotides (nts) in length and encoded seven proteins. The both 5' and 3' ends were confirmed to be 55 and 24 nts by RACE method, respectively. The full-length nucleotide sequence of Dg1062 isolate differed from other strains by 2.9-6.8% in the nucleotide sequence level, resulting in 206 nucleotide and 54 amino acid substitutions which were observed in only Dg1062 isolate relative to the consensus sequences of other strains. Despite the variations of amino acids over the full genome including HN gene, it might be considered that this isolate have no significant variations in the antigenic sites. This result is the first report of full-length genome of genotype I strain and provides an overview on the diversity of genetic characteristics of circulating mumps virus.