| Literature DB >> 4570768 |
S J Clarke, B Low, W H Konigsberg.
Abstract
Escherichia coli strain K28, isolated after nitrosoguanidine mutagenesis, was found to be auxotrophic for serine. It was also temperature sensitive for growth as a result of producing an altered seryl-transfer ribonucleic acid (tRNA) synthetase (EC 6.1.1.11, l-serine: tRNA ligase [AMP]). The auxotrophy was caused by a mutation in the structural gene for phosphohydroxy-pyruvate transaminase (serC), which was distinct from, but closely linked to, the structural gene for seryl-tRNA synthetase (serS). We conclude that the relevant genes are in the order gal-serS-serC-aroA.Entities:
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Year: 1973 PMID: 4570768 PMCID: PMC251668 DOI: 10.1128/jb.113.3.1091-1095.1973
Source DB: PubMed Journal: J Bacteriol ISSN: 0021-9193 Impact factor: 3.490