In Vivo Accumulation of Cyclin A and Cellular Replication Factors in Autonomous Parvovirus Minute Virus of Mice-Associated Replication Bodies

Author:

Bashir Tarig1,Rommelaere Jean1,Cziepluch Celina1

Affiliation:

1. Applied Tumor Virology Unit F0100 and Institut National de la Santé et de la Recherche Médicale U 375, Deutsches Krebsforschungszentrum, D-69120 Heidelberg, Germany

Abstract

ABSTRACT Autonomous parvovirus minute virus of mice (MVM) DNA replication is strictly dependent on cellular factors expressed during the S phase of the cell cycle. Here we report that MVM DNA replication proceeds in specific nuclear structures termed autonomous parvovirus-associated replication bodies, where components of the basic cellular replication machinery accumulate. The presence of DNA polymerases α and δ in these bodies suggests that MVM utilizes partially preformed cellular replication complexes for its replication. The recruitment of cyclin A points to a role for this cell cycle factor in MVM DNA replication beyond its involvement in activating the conversion of virion single-stranded DNA to the duplex replicative form.

Publisher

American Society for Microbiology

Subject

Virology,Insect Science,Immunology,Microbiology

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