Article
Residual guanosine 3',5'-bispyrophosphate synthetic activity of relA null mutants can be eliminated by spoT null mutations.
The Journal of biological chemistry - 25 Mar 1991
Xiao H, Kalman M, Ikehara K, Zemel S, Glaser G, Cashel M
Abstract excerpt
It was known previously that 1) the relA gene of Escherichia coli encodes an enzyme capable of guanosine 3',5'-bispyrophosphate (ppGpp) synthesis, 2) an uncharacterized source of ppGpp synthesis exists in relA null strains, and 3) cellular degradation of ppGpp is mainly due to a manganese-dependent ppGpp 3'-pyrophosphohydrolase encoded by the spoT gene. Here, the effects of spoT gene insertions and deletions are...
Topics
- Alleles
- Amino Acids
- Blotting, Southern
- Chromosome Deletion
- DNA, Bacterial
- Escherichia coli
- Genes, Bacterial
- Guanosine Tetraphosphate
- Mutation
- Operon
- Plasmids