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Characterization of Short-lived Intermediates Produced During Replication of Baculovirus DNA

Overview
Journal Virus Res
Specialty Microbiology
Date 2009 Jun 30
PMID 19560496
Citations 3
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Abstract

In this report the short-lived DNA replication intermediates produced in both uninfected and Autographa californica multiple nucleopolyhedrovirus (AcMNPV) infected Spodoptera frugiperda cells were characterized. The methods used included pulse-labeling of DNA in permiabilized cells, treatment of nascent DNA with Mung bean nuclease, and electrophoresis in neutral and alkaline agarose gels. In contrast to uninfected cells that produced a population of small DNA fragments of about 200bp, a population of heterogeneous fragments of up to 5kb with an average size of 1-2kb derived randomly from the virus genome was identified as the short-lived intermediates produced during AcMNPV replication. The intermediates likely include Okazaki fragments derived from the lagging strands in viral replication forks as well as fragments produced during the recombination-dependent replication.

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