| isolation and identification of a new tetravirus from dendrolimus punctatus larvae collected from yunnan province, china. | in this study, dendrolimus punctatus tetravirus (dptv) has been identified as a new member of the genus omegatetravirus of the family tetraviridae that may be related serologically to nudaurelia capensis omega virus (nomegav). dptv particles are isometric, with a diameter of about 40 nm and a buoyant density of 1.281 g cm(-3) in cscl. the virus has two capsid proteins (of 62 500 and 6800 da) and two single-stranded rna molecules (rna1 and rna2), which are 5492 and 2490 nt long, respectively. rna ... | 2005 | 15722541 |