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  • Title: Nucleotide sequence of the recF gene cluster from Staphylococcus aureus and complementation analysis in Bacillus subtilis recF mutants.
    Author: Alonso JC, Fisher LM.
    Journal: Mol Gen Genet; 1995 Mar 20; 246(6):680-6. PubMed ID: 7898435.
    Abstract:
    We have determined the nucleotide sequence of a 3.5 kb segment in the recF region of the Staphylococcus aureus chromosome. The gene order at this locus, dnaA-dnaN-recF-gyrB is similar to that found in the replication origin region of many other bacteria. S. aureus RecF protein (predicted molecular mass 42.3 kDa), has 57% amino acid sequence identity with the Bacillus subtilis RecF protein (42.2 kDa), but only 26% with the Escherichia coli RecF protein (40.5 kDa). We have shown that the S. aureus recF gene partially complements the defect of a B. subtilis recF mutant, but does not complement an E. coli recF strain. The amino acid sequence alignment of seven available RecF proteins (five of them from bacteria of gram-negative origin) allowed us to identify eight highly conserved regions (alpha to theta) and to predict five new conserved regions within the gram-positive group (a to f). We suggest that the basic mechanism of homologous recombination is conserved among free-living bacteria.
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