Influence of cyclic 3′,5′-adenosine monophosphate on uracil uptake by rifampicin treated Escherichia coli cells
Incubation of cells from a wild type strain of E. coli with 0.3 mg/ml rifampicin for 15 minutes lead to a complete inhibition of RNA synthesis measured as the uracil incorporation into the trichloroacetic acid insoluble fraction. In these rifampicin-treated cells [14C]uracil incorporation tended to...
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| Autores principales: | , |
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| Formato: | JOUR |
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_03008177_v16_n2-3_p135_Judewicz |
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| Sumario: | Incubation of cells from a wild type strain of E. coli with 0.3 mg/ml rifampicin for 15 minutes lead to a complete inhibition of RNA synthesis measured as the uracil incorporation into the trichloroacetic acid insoluble fraction. In these rifampicin-treated cells [14C]uracil incorporation tended to decrease during a further incubation at 37°. Addition of cyclic AMP increased the inactivation of the system responsible for [14C]uracil uptake. The cyclic nucleotide effect seems to be specific since ATP or 5′AMP did not increase such inactivation. © 1977 Dr. W. Junk b.v. Publishers. |
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