Biochemistry and regulation of a second L-proline transport system in Salmonella typhimurium
- 1 March 1980
- journal article
- research article
- Published by American Society for Microbiology in Journal of Bacteriology
- Vol. 141 (3) , 1071-1076
- https://doi.org/10.1128/jb.141.3.1071-1076.1980
Abstract
This paper reports some biochemical characteristics of a second L-proline transport system in Salmonella typhimurium. In the accompanying paper, R. Menzel and J. Roth (J. Bacteriol. 141:1064--1070, 1980) have identified this system by showing that it is inactivated by mutations at the locus proP. We have found that it is an active transport system with an apparent Km for L-proline of 3 x 10(-4) M and a strict specificity for L-proline and some of its analogs. Unlike the L-proline transport system encoded in putP, this second system is induced by amino acid limitation.This publication has 19 references indexed in Scilit:
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