Characterization of Pyridoxine Auxotrophs of Escherichia coli: Chromosomal Position of Linkage Group I

Author:

Dempsey Walter B.1

Affiliation:

1. Basic Research Unit, Veterans Administration Hospital, Dallas, Texas 75216 and Department of Biochemistry, University of Texas Southwestern Medical School, Dallas, Texas 75235

Abstract

The chromosomal location of Group I pyridoxine mutations in Escherichia coli is shown to be adjacent to dsdA,aroC , and purF (old purC ) in E. coli B × K-12 hybrids. All mutants previously classified into Group I by nutrition tests and transduction frequency tests are shown to be linked to dsdA .

Publisher

American Society for Microbiology

Subject

Molecular Biology,Microbiology

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