%0 Journal Article %A Essenberg, Richard C. %T Use of Homocysteic Acid for Selecting Mutants at the gltS Locus of Escherichia coli K12 %D 1984 %J Microbiology, %V 130 %N 6 %P 1311-1314 %@ 1465-2080 %R https://doi.org/10.1099/00221287-130-6-1311 %I Microbiology Society, %X l-Homocysteic acid is toxic to Escherichia coli K12. Sensitivity to this compound is higher in cells which can utilize glutamate as sole carbon source via the Na+-dependent glutamate transport system. Such cells become resistant by mutation at the gltS locus. Sensitivity of both wild-type and glutamate-utilizing strains is greater if cells are growing on acetate as compared with glucose as major carbon source. %U https://www.microbiologyresearch.org/content/journal/micro/10.1099/00221287-130-6-1311