Mapping of Digitaria streak virus transcripts reveals different RNA species from the same transcription unit.

摘要: All, except 19 [corrected] bp, of the Digitaria streak virus (DSV) genome is transcribed. Two RNA transcripts (1+ and 2+) are encoded by virion DNA strand up to five (1- 5-) complementary [corrected]. Detailed mapping these RNAs has revealed evidence for splicing in one species (RNA 4-), which together with its more abundant unspliced counterpart 2-) could synthesize both a 30.5 41 kd polypeptide from same transcription unit. This extensive overlapping spliced indicate that initiation temporally regulated. At least transcript 1-) may have non-translational role. Transcription DSV shows similarities some animal viruses, particularly papovaviruses.