The nucleotide sequence of hydrangea mosaic virus RNA 3 exhibits similarity with the RNA 3 of tobacco streak virus.
The complete nucleotide sequence of the RNA 3 of hydrangea mosaic virus (HdMV) was determined. It consists of 2268 nucleotides and contains two open reading frames (ORF). ORF 1 encodes for a putative translation product of 293 amino acids which shared 64.9% identity with the 3a protein of tobacco streak virus (TSV). ORF 2 encodes for a putative translation product of 220 amino acids which shared 54.2% identity with the coat protein of TSV. The relationship between the proteins of HdMV and the corresponding proteins of ilarviruses other than TSV was more distant. No zinc-finger-like motif was found in the coat protein of HdMV but the N-terminus of the protein was rich in basic amino acids. Both terminal, non-coding regions of HdMV RNA 3 contained repeated sequences with corresponding homologous fragments in the RNA 3 of TSV. On the basis of the similarities between HdMV and TSV that we detected, we propose that HdMV be included in subgroup 1 of the genus Ilarvirus together with TSV.
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Department of Plant Pathology and Physiology, Clemson University, SC 29634-0377, USA.
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D000595:Amino Acid Sequence; D001483:Base Sequence; D017795:Bromovirus / Q000235:genetics; D008969:Molecular Sequence Data; D009029:Mosaic Viruses / Q000145:classification / Q000235:genetics*; D010947:Plants, Toxic; D012367:RNA, Viral; D014026:Nicotiana / Q000821:virology; D014197:Trees / Q000821:virology; D014764:Viral Proteins / Q000032:analysis
D012367:RNA, Viral; D014764:Viral Proteins