title: Two-component suppression of recF143 by recA441 in Escherichia coli K-12.
abstract: Sensitivity to UV irradiation conferred by recF143 was partially suppressed by recA441 (also known as tif-1). A temperature-conditional component depended on uvrA function and is thought to involve thermal induction of excision repair enzymes. In a uvrA6 mutant, a temperature-independent component of suppression was seen. This is thought to indicate that recA441 also caused temperature-independent changes in recA activity. Two hypotheses are offered to explain how recA441 produced both thermosensitive and thermoindependent effects.
mesh_terms: D001426:Bacterial Proteins / Q000235:genetics* / Q000528:radiation effects; D004307:Dose-Response Relationship, Radiation; D004926:Escherichia coli / Q000235:genetics* / Q000528:radiation effects; D005796:Genes; D005798:Genes, Bacterial; D005838:Genotype; D011938:Rec A Recombinases / Q000235:genetics*; D013489:Suppression, Genetic; D014466:Ultraviolet Rays
chemical_list: D001426:Bacterial Proteins; D011938:Rec A Recombinases