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Journal of Bacteriology logoLink to Journal of Bacteriology
. 1969 Mar;97(3):1403–1410. doi: 10.1128/jb.97.3.1403-1410.1969

Characterization of Pyridoxine Auxotrophs of Escherichia coli: P1 Transduction

Walter B Dempsey a,1
PMCID: PMC249861  PMID: 4887517

Abstract

Pyridoxine mutants of Escherichia coli B, previously divided into a minimum of six groups by cross-feeding tests, were characterized by transduction studies performed with phage P1bt. The results of these studies allowed division of pyridoxine mutants into five unlinked groups and set the minimum number of enzymes between pyridoxal phosphate and a metabolite common to other pathways at six or seven, with the probable maximum at ten. One group was shown to be linked to thr, leu, and pyrA.

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Selected References

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