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Article

Ser57 in the Na+/proline permease of Escherichia coli is critical for high-affinity proline uptake.

European journal of biochemistry - 1 Aug 1996

Quick M, Tebbe S, Jung H

Abstract excerpt

Ser57 in the Na+/proline permease of Escherichia coli has been replaced with alanine, cysteine, glycine, or threonine, and properties of the corresponding putP mutants have been analyzed. Although Ser57 is not essential for activity, the amino acid side chain at this position is critical for proline uptake. Thus, alanine, cysteine, glycine, or threonine in place of Ser57 reduces the initial rate of proline...

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Identifiers

PMID: 8774720
DOI: 10.1111/j.1432-1033.1996.0732u.x

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-08.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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