Physical locations of bglA and serA on the Escherichia coli K-12 chromosome
نویسندگان
چکیده
منابع مشابه
Location of the endA gene coding for endonuclease I on the physical map of the Escherichia coli K-12 chromosome.
The endonuclease I of Escherichia coli is an RNA-inhibitable DNase which is located in the periplasmic space of the E. coli cell (3); it cleaves native DNA into oligonucleotides (7). It is assumed that in the noninhibited, RNA-free state the enzyme introduces nucleotide sequence-independent doublestrand breaks into DNA (2, 9), whereas the inhibited, RNAcomplexed enzyme probably causes only nick...
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Using a genetic screen we have identified two chromosomal genes, cusRS (ylcA ybcZ), from Escherichia coli K-12 that encode a two-component, signal transduction system that is responsive to copper ions. This regulatory system is required for copper-induced expression of pcoE, a plasmid-borne gene from the E. coli copper resistance operon pco. The closest homologs of CusR and CusS are plasmid-bor...
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Since the first reports by Cavalli-Sforza (9) and Hayes (24) of strains of Escherichia coli K-12 which are conjugational donors of chromosomal markers at high frequency (Hfr strains), many other Hfr strains have been isolated and our understanding of the mechanisms involved in Hfr formation has increased considerably. All Hfr strains arise from the integration of a conjugative plasmid into the ...
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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...
متن کاملGuanylate kinase of Escherichia coli K-12.
We have identified the gene gmk, in the same operon as rpoZ, spoT, and recG at about 82 minutes on the Escherichia coli chromosome. The gmk (GMP kinase) gene encodes a peptide of 23,592 Da, possessing extensive similarity to the amino acid sequence of guanylate kinase from yeast. To confirm that gmk truly encodes guanylate kinase and to explore some of its enzymatic features, we have overproduc...
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 1991
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.173.5.1571.1991