Uptake of Branched-Chain Amino Acids by Streptococcus thermophilus.

Abstract:

:The transport of branched-chain amino acids in Streptococcus thermophilus was energy dependent. The metabolic inhibitors of glycolysis and ATPase enzymes were active, but the proton-conducting uncouplers were not. Transport was optimal at temperatures of between 30 and 45 degrees C and at pH 7.0 for the three amino acids leucine, valine, and isoleucine; a second peak existed at pH 5.0 with valine and isoleucine. By competition and kinetics studies, the branched-chain amino acids were found to share at least a common transport system.

journal_name

Appl Environ Microbiol

authors

Akpemado KM,Bracquart PA

doi

10.1128/AEM.45.1.136-140.1983

keywords:

subject

Has Abstract

pub_date

1983-01-01 00:00:00

pages

136-40

issue

1

eissn

0099-2240

issn

1098-5336

journal_volume

45

pub_type

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