The 2B domain of the Escherichia coli Rep protein is not required for DNA helicase activity.

Abstract

The Escherichia coli Rep protein is a 3' to 5' SF1 DNA helicase required for replication of bacteriophage phiX174 in E. coli, and is structurally homologous to the E. coli UvrD helicase and the Bacillus stearothermophilus PcrA helicase. Previous crystallographic studies of Rep protein bound to single-stranded DNA revealed that it can undergo a large… (More)

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