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. 1969 Jan;97(1):250-5.
doi: 10.1128/jb.97.1.250-255.1969.

Genetic analysis of carbohydrate transport-deficient mutants of Salmonella typhimurium

Genetic analysis of carbohydrate transport-deficient mutants of Salmonella typhimurium

M Levinthal et al. J Bacteriol. 1969 Jan.

Abstract

Mutants (car) isolated from Salmonella typhimurium were unable to utilize or ferment the following carbohydrates (all d-configuration): glucose, fructose, mannose, N-acetylglucosamine, sorbitol, mannitol, maltose, melibiose, and glycerol. The mutants did utilize galactose, glucose 6-phosphate, gluconic acid, glucuronic acid, pyruvate, and l-lactate. Biochemical analysis showed that there were two classes of mutants, each lacking one component of a phosphotransferase system. CarA mutants were deficient in enzyme I; carB lacked the phosphate carrier protein, HPr. Mapping experiments showed that the carA gene was located near pro; the carB gene mapped near purC.

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References

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