作者: Kristen M. Ogden , Reimar Johne , John T. Patton
DOI: 10.1016/J.VIROL.2012.05.011
关键词: Polymerase 、 Double-stranded RNA viruses 、 Sequence analysis 、 DNA 、 RNA 、 Biology 、 Clade 、 RNA polymerase 、 Rotavirus 、 Genetics
摘要: Rotaviruses (RVs) are segmented double-stranded RNA viruses that cause gastroenteritis in mammals and birds. Within the RV genus, eight species (RVA-RVH) have been proposed. Here, we report first RVF RVG sequences for viral polymerase (VP1)-encoding segments compare them to those of other species. Phylogenetic analyses indicate VP1 proteins resolve into two major clades, with RVA, RVC, RVD clade A, RVB, RVH B. Plus-strand A viruses, not B contain a 3'-proximal UGUG cassette serves as recognition signal. structures representative each were predicted using homology modeling. Structural elements involved interactions conserved among suggesting mechanism these viruses.