Previous Article | Next Article ![]()
Journal of Bacteriology, August 2002, p. 4626-4629, Vol. 184, No. 16
0021-9193/02/$04.00+0 DOI: 10.1128/JB.184.16.4626-4629.2002
Copyright © 2002, American Society for Microbiology. All Rights Reserved.
Rap Protein in Escherichia coli K-12
Department of Molecular Genetics & Microbiology, University of Massachusetts Medical School, Worcester, Massachusetts 01655
Received 23 October 2001/ Accepted 9 May 2002
The rap gene of bacteriophage
was placed in the chromosome of an Escherichia coli K-12 strain in which the recBCD gene cluster had previously been replaced by the
red genes and in which the recG gene had been deleted. Recombination between linear double-stranded DNA molecules and the chromosome was tested in variants of the recG
red+ rap+ strain bearing mutations in genes known to affect recombination in other cellular pathways. The linear DNA was a 4-kb fragment containing the cat gene, with flanking lac sequences, released from an infecting phage chromosome by restriction enzyme cleavage in the cell. Replacement of wild-type lacZ with lacZ::cat was monitored by measuring the production of Lac-deficient chloramphenicol-resistant bacterial progeny. The results of these experiments indicated that the
rap gene could functionally substitute for the E. coli ruvC gene in Red-mediated recombination.
This article has been cited by other articles:
Copyright © 2009 by the American Society for Microbiology. For an alternate route to Journals.ASM.org, visit: http://intl-journals.asm.org | More Info»