RRC ID 30126
著者 Ohmori H, Saito M, Yasuda T, Nagata T, Fujii T, Wachi M, Nagai K.
タイトル The pcsA gene is identical to dinD in Escherichia coli.
ジャーナル J Bacteriol
Abstract The pcsA68 mutant of Escherichia coli is a cold-sensitive mutant which forms long filaments with a large nucleoid in the central region at 20 degrees C. We here show that (i) the coding region for the pcsA gene is identical with orfY located upstream of pyrE and can be deleted without loss of viability; (ii) pcsA is also identical to dinD, a DNA damage-inducible gene, whose expression is regulated by the LexA-RecA system; (iii) the cold-sensitive phenotype of the pcsA68 mutation is suppressed by delta recA or lexA1 (Ind-) mutation, but not by sulA inactivation; (iv) overproduction of PcsA68 leads to inhibition of cell growth in recA+ and delta recA strains at 20 and 37 degrees C, but PcsA+ does not show such an effect at any temperature; (v) SOS response is induced in the pcsA68 mutant cells at 20 degrees C. We discuss the possible function of the pcsA gene, comparing it with the sulA or the dif-xerCD function. We also describe a new method for gene disruption with positive and negative selection.
巻・号 177(1)
ページ 156-65
公開日 1995-1-1
DOI 10.1128/jb.177.1.156-165.1995
PMID 8002613
PMC PMC176568
MeSH Bacterial Proteins / genetics* Base Sequence Chromosome Mapping Cold Temperature DNA Damage / genetics Escherichia coli / cytology Escherichia coli / genetics* Escherichia coli Proteins* Genes, Bacterial / genetics* Genetic Complementation Test Molecular Sequence Data Mutagenesis Plasmids / genetics Rec A Recombinases / genetics SOS Response, Genetics / genetics Selection, Genetic Sequence Deletion Sequence Homology, Nucleic Acid Suppression, Genetic
IF 3.006
引用数 32
WOS 分野 MICROBIOLOGY
リソース情報
原核生物(大腸菌) ME9622 ME9628