Transport of D- and L-tryptophan in Bacillus megaterium by an inducible permease

Author:

Bouknight R R,Sadoff H L

Abstract

Tryptophan-grown cells of Bacillus megaterium ATCC 19213 contain a permease system that transports both D- and L-tryptophan and is inhibited by sodium azide. Arginine-grown cells contain little tryptophan permease activity, suggesting that the system is inducible. Arginine represses the tryptophan permease as well as the transport system for leucine and phenylalanine. Kynurenine was a more effective inducer of the tryptophan transport system than either D- or L-tryptophan.

Publisher

American Society for Microbiology

Subject

Molecular Biology,Microbiology

Reference14 articles.

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2. Histidine and aromatic permeases of Salmonella typhimurium;Ames G. F.;J. Bacteriol.,1968

3. Properties of a tryptophan transport system in Escherichia coli;Boezi J. A.;Biochim. Biophys. Acta,1961

4. Tryptophan catabolism in Bacillus megaterium;Bouknight R. R.;J. Bacteriol.,1975

5. Formation of amino acid pools in Escherichia coli K-12;Brown K. D.;J. Bacteriol.,1970

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