Papovaviruses are small nonenveloped icosahedral viruses that contain circular double stranded dna viral particles range in diameter from 45 to 55 nm papovaviruses contain a limited amount of genetic information six or seven genes the dna has a molecular weight of 3 x 10 6 to 5 x 10 6 two or three polypeptides are used to construct . Family polyomaviridae a group of papovaviruses were perhaps the first to be associated with malignancy causing death or illness in animals polyomaviruses are widespread in mice they can infect other rodents and they can cause tumours in infected animals another virus of the family polyomaviridae is simian virus 40 sv40. Summary polyomaviridae is a family of small non enveloped viruses with dsdna genomes of approximately 5000 base pairs phylogenetic relationships among polyomaviruses based on the amino acid sequence of the viral protein large tumor antigen have resulted in the delineation of four genera alphapolyomavirus betapolyomavirus gammapolyomavirus and deltapolyomavirus
How it works:
1. Register Trial Account.
2. Download The Books as you like ( Personal use )