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. 1974 May;118(2):598-605.
doi: 10.1128/jb.118.2.598-605.1974.

Mutants of Escherichia coli defective in membrane phospholipid synthesis: mapping of the structural gene for L-glycerol 3-phosphate dehydrogenase

J E Cronan Jr, R M Bell

Mutants of Escherichia coli defective in membrane phospholipid synthesis: mapping of the structural gene for L-glycerol 3-phosphate dehydrogenase

J E Cronan Jr et al. J Bacteriol. 1974 May.

Abstract

The structural gene for the biosynthetic l-glycerol 3-phosphate dehydrogenase has been mapped at min 71.5 on the Escherichia coli chromosome. This gene (gpsA) is co-transduced with the xyl, mtl, and pyrE loci. Three-factor conjugational crosses and the transduction data indicate that the order of loci in this region of the chromosone is mtl, gltE, gpsA, gadR, gadS, pyrE. Study of a temperature-sensitive gpsA mutant possessing a dehydrogenase of increased thermolability indicated that gpsA is the structural gene for the dehydrogenase. All dehydrogenase-deficient strains tested were mapped very close to the gpsA locus. Attempts at genetic complementation analysis were unsuccessful.

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References

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