Opium Poppy Mosaic Virus Has an Xrn-Resistant, Translated Subgenomic RNA and a BTE 3' CITE.

ABSTRACT: Opium poppy mosaic virus (OPMV) is a recently discovered umbravirus in the family Tombusviridae OPMV has a plus-sense genomic RNA (gRNA) of 4,241 nucleotides (nt) from which replication protein p35 and p35 extension product p98, the RNA-dependent RNA polymerase (RdRp), are expressed. Movement proteins p27 (long distance) and p28 (cell to cell) are expressed from a 1,440-nt subgenomic RNA (sgRNA2). A highly conserved structure was identified just upstream from the sgRNA2 transcription start site in all umbraviruses, which includes a carmovirus consensus sequence, denoting generation by an RdRp-mediated mechanism. OPMV also has a second sgRNA of 1,554 nt (sgRNA1) that starts just downstream of a canonical exoribonuclease-resistant sequence (xrRNAD). sgRNA1 codes for a 30-kDa protein in vitro

SUBMITTER: Ilyas M 

PROVIDER: S-EPMC8104115 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature