Cyclic Adenosine 3′,5′-Monophosphate in 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...
متن کاملDifferential binding of cyclic adenosine 3' ,5'-monophosphate to the cyclic adenosine 3' ,5'-monophosphate receptor protein in Escherichia coli.
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 کاملAdenosine 3':5'-cyclic monophosphate control of the enzymes of glutamine metabolism in Escherichia coli.
The effect of cAMP on the intracellular levels of five enzymes concerned with the interconversion of glutamate and glutamine in E. coli has been examined. Cyclic AMP added to the culture medium increases the levels of glutamate dehydrogenase (EC 1.4.1.4) and glutamine synthetase (EC 6.3.1.2); it decreases the levels of glutamate synthase (EC 1.4.1.X), and glutaminase A (EC 3.5.1.2). Cyclic AMP ...
متن کاملRole of cyclic adenosine 3',5'-monophosphate on cessation of respiration in ultraviolet-irradiated Escherichia coli.
The addition of cyclic adenosine 3',5'-monophosphate (cAMP) to ultraviolet-irradiated Escherichia coli B/r cultures causes additional cells to cease respiring and to die. These effects of cAMP are greater on glucose-grown cells, where the effects of ultraviolet radiations alone are smaller and where the intracellular concentrations of cAMP are known to be lower.
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 1973
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.114.3.1068-1073.1973