Uptake of adenosine 5'-monophosphate by Escherichia coli
نویسندگان
چکیده
منابع مشابه
Cyclic adenosine 5'-monophosphate in Escherichia coli.
INTRODUCTION ................ ROLE OF CYCLIC AMP IN REGULATION OF GENE EXPRESSION .......... A Positive Element in Gene Expression ...................................... CRP .......................... :........................................... Direct stimulation of gene expression ...................................... Possible Role As a Negative Element .........................................
متن کامل3',5'-cyclic adenosine monophosphate-requiring mutants of Escherichia coli.
Mutants that require exogenous 3',5'-cyclic adenosine monophosphate (cAMP) for exponential growth were isolated from strains deficient in adenyl cyclase. Studies of one strain showed that cAMP is not incorporated into macromolecules; instead, it seems to have a regulatory function, i.e., in media lacking cAMP, cells form ribonucleic acid (RNA) and protein at linear rather than exponential rates...
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Binding of cyclic adenosine 3' ,5'-monophosphate (cAMP) by the cAMP receptor protein in crude cell-free extracts of Escherichia coli was characterized. When cell were grown in glucose, binding was inhibited 50% relative to extracts from cells grown with succinate as carbon source . This inhibition could be relieved by dialysis.
متن کاملRegulation of beta-galactosidase synthesis in Escherichia coli by cyclic adenosine 3',5'-monophosphate.
Cyclic adenosine 3’,5’-monophosphate (cyclic AMP) increases the differential rate of synthesis of @-galactosidase in Escherichia coli made permeable by treatment with t&(hydroxymethyl)aminomethane and ethylenediaminetetraacetic acid. In normal, growing cells, cyclic AMP overcomes the transient repression of /3-galactosidase by glucose. A half-maximal effect of cyclic AMP occurs at about 7 x 10-...
متن کاملStimulation of galactokinase synthesis in Escherichia coli by adenosine 3',5'-cyclic monophosphate.
Adenosine 3',5'-cyclic monophosphate (cyAMP) stimulates the rate of synthesis of galactokinase in glycerol-grown Escherichia coli both when production of the enzyme is induced by d-fucose and when it is repressed by glucose in the presence of inducer. cyAMP also stimulates the synthesis of galactokinase in constitutive strains B78A (R(-)) and R10 (O(c)), and overcomes the transient repression o...
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 1975
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.121.2.401-405.1975