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J Biol Chem, Vol. 274, Issue 35, 25033-25041, August 27, 1999
§
From the Escherichia coli strains carrying
null mutations in priA are chronically induced for the SOS
response and are defective in homologous recombination, repair of UV
damaged DNA, double-strand break repair, and both induced and
constitutive stable DNA replication. This led to the proposal that PriA
directed replication fork assembly at D loops formed by the homologous
recombination machinery. The demonstration that PriA specifically
recognized and bound D loop DNA supported this hypothesis. Using DNA
footprinting as an assay, we show here that PriA also directs the
assembly of a
Molecular Biology Program,
X174-type primosome on D loop DNA. The ability to load
a complete primosome on D loop DNA is a step necessary for replication
fork assembly.
Copyright © 1999 by The American Society for Biochemistry and Molecular Biology, Inc.
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