Human astroviruses are recognized as an important cause of
infantile gastroenteritis around the world. In South Korea,
sporadic cases of HAstV infection have been reported since
2002. However, hitherto, there have been no studies reporting
the whole genome sequence of an HAstV isolate from
South Korea. Hence, we sequenced and analyzed the entire
genome of an HAstV-1 strain (lhar) that was isolated in
Seoul, South Korea. The whole-genome sequence analysis
revealed 3 open reading frames comprising the whole genome:
ORF1a (2,763 bp), ORF1b (1,548 bp), and ORF2
(2,364 bp). The lhar strain showed amino acid identities
with 8 other reference strains of 87.6?98.7%, 94.2?98.8%,
and 62.6?99.0% in the ORF1a, ORF1b, and ORF2 regions,
respectively. The amino acid sequence of the capsid region
encoded by ORF2 was compared with a total of 19 HAstV-1
strains and 8 HAstVs reference strains isolated in various
countries. This revealed 1 amino acid substitution, at aa412
(Pro → Arg) in ORF2. This study, the first to report the fulllength
sequence of an HAstV isolated in South Korea, is
meaningful in that it can be used as a full-length HAstV sequence
standard for future comparison studies. It may also
prove useful to the field of public health field by facilitating
the diagnosis and the prediction of new emerging variants.