Genome structure of incomplete particles of adenovirus - PubMed (original) (raw)
Genome structure of incomplete particles of adenovirus
E Daniell. J Virol. 1976 Aug.
Abstract
Incomplete particles arising during productive growth of adenovirus were separated from infectious particles by density gradient centrifugation. The DNA contained in particles of low density was characterized by restriction enzyme analysis and by electron microscopy and heteroduplexing techniques. The DNA is heterogeneous in length, ranging in size from 15% of the normal genome to full length. Many individual molecules contain long, inverted terminal repetitions, which consist of the sequences extending from the normal left-hand end of the viral genome inward; the normal right end sequences appear to be missing from these molecules. The region of the genome reiterated in these molecules is that which has been implicated in transformation of rat cells by adenovirus (Gallimore, Sharp, and Sambrook, 1974; Graham, van der Eb, and Heijneker, 1974). A model for adenovirus replication is presented that accounts for the aberrant structures observed.
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