Southern bean mosaic viral RNA has a 5'-linked protein but lacks 3' terminal poly(A).
Nuclease digestion of SBMV RNA releases a protein of molecular weight approximately 12,000 in addition to the four mononucleotides. The lack of reactivity of SBMV RNA to polynucleotide kinase and the absence of a capping group suggest that the protein is covalently attached to the 5' end of the RNA. RNA sequencing shows that the 3' terminus of SBMV RNA is not polyadenylated.
D001483:Base Sequence; D008745:Methylation; D008970:Molecular Weight; D009029:Mosaic Viruses / Q000032:analysis*; D009843:Oligoribonucleotides / Q000032:analysis; D011061:Poly A / Q000032:analysis*; D012367:RNA, Viral / Q000032:analysis*; D012260:Ribonucleases
D009843:Oligoribonucleotides; D012367:RNA, Viral; D011061:Poly A; D012260:Ribonucleases