Role of sulA and sulB in filamentation by lon mutants of Escherichia coli K-12
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چکیده
منابع مشابه
Phosphoglucomutase mutants of Escherichia coli K-12.
Bacteria with strongly depressed phosphoglucomutase (EC 2.7.5.1) activity are found among the mutants of Escherichia coli which, when grown on maltose, accumulate sufficient amylose to be detectable by iodine staining. These pgm mutants grow poorly on galactose but also accumulate amylose on this carbon source. Growth on lactose does not produce high amylose but, instead, results in the inducti...
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We have extended our previous study on the suppression of frameshift mutants by Escherichia coli thyA mutants by assaying suppression of 15 rIIB frameshift mutants of bacteriophage T4 on one of our suppressing thyA mutant strains. The majority of insertion mutants were suppressible, whereas none of the deletion mutants tested was suppressible. Frameshift suppression could be inhibited by adding...
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Mutations in sulA (sfiA) block the filamentation and death of capR (lon) mutants that occur after treatments that either damage DNA or inhibit DNA replication and thereby induce the SOS response. Previous sulA-lacZ gene fusion studies showed that sulA is transcriptionally regulated by the SOS response system (lexA/recA). SulA protein has been hypothesized to be additionally regulated proteolyti...
متن کاملPotassium-dependant mutants of Escherichia coli K-12.
Mutants of Escherichia coli K-12 that grow more slowly in media containing low concentrations of K have been isolated. All independent mutants of this type which have been studied carry a mutation in a small region of the bacterial chromosome between the supE and gal loci. The growth rate of the mutants is the same as that of the parental strains in medium containing more than 1 mm K, but is on...
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 1981
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.148.1.265-273.1981