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. 1989 Sep 12;17(17):6781-94.
doi: 10.1093/nar/17.17.6781.

The recR locus of Escherichia coli K-12: molecular cloning, DNA sequencing and identification of the gene product

A A Mahdi  1 , R G Lloyd
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Free PMC article

The recR locus of Escherichia coli K-12: molecular cloning, DNA sequencing and identification of the gene product

A A Mahdi et al. Nucleic Acids Res. .
Free PMC article

Abstract

The recR gene of Escherichia coli, which is associated with recBC-independent mechanisms of recombination and DNA repair, has been located between dnaZX and htpG on a 6.4 kb EcoRI fragment of DNA that has been cloned and analysed in lambda and plasmid vectors. Nucleotide sequencing of this interval revealed two open reading frames that constitute an operon lying immediately downstream of dnaZX. The second of these two reading frames was identified as recR. It encodes a polypeptide with a predicted molecular weight of 21,965 Daltons that migrates on SDS gels as a 26 kDa protein. The first gene of the operon encodes a polypeptide of 12,015 daltons. Its function is not known.

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