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J. Bacteriol., 05 1996, 2989-2990, Vol 178, No. 10
Copyright © 1996, American Society for Microbiology

Isolation of glutamate-inserting ochre suppressor mutants of Salmonella typhimurium and Escherichia coli

MJ Prival
Genetic Toxicology Branch, U.S. Food and Drug Administration, Washington, D.C. 20204, USA. mjp@fdacf.ssw.dhhs.gov

Glutamate-inserting ochre suppressors have been identified among late- arising, spontaneous revertants of a hisG428 mutant of Salmonella typhimurium and an argE3 mutant of Escherichia coli. The S. typhimurium suppressors mapped in the tRNA2(Glu) gene gltU at 82 min; those in E. coli were found to be in tRNA2(Glu) genes gltW at 56 min, gltU at 85 min, and gltT at 90 min.




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Copyright © 1996 by the American Society for Microbiology. All rights reserved.