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J Virol. 1980 September; 35(3): 662-671

Initiation of adenovirus DNA replication.

ABSTRACT

In an attempt to study the mechanism of initiation of adenovirus DNA replication, an assay was developed to investigate the pattern of DNA synthesis in early replicative intermediates of adenovirus DNA. By using wild-type virus-infected cells, it was possible to place the origin of adenovirus type 2 DNA replication within the terminal 350 to 500 base pairs from either of the two molecular termini. In addition, a variety of parameters characteristic of adenovirus DNA replication were compared with those obtained in a soluble nuclear extract competent for viral DNA replication. It was observed that in vitro DNA replication, which is dependent on the exogenously added viral DNA-protein complex as its optimal template, occurs in a manner apparently indistinguishable from the situation in virus-infected cells. This includes the presence of proteinaceous material on the molecular termini of newly initiated viral DNA.