Escherichia coli K-12 can utilize an exogenous gamma-glutamyl peptide as an amino acid source, for which gamma-glutamyltranspeptidase is essential.
Escherichia coli K-12 can utilize a gamma-glutamyl peptide as an amino acid source, for which gamma-glutamyltranspeptidase (EC 2.3.2.2) is essential. We suggest that the gamma-glutamyl linkage of a gamma-glutamyl peptide is hydrolyzed by gamma-glutamyltranspeptidase located in the periplasmic space, and the released amino acid is taken up and utilized by E. coli.
Suzuki
H
H
Department of Food Science and Technology, Faculty of Agriculture, Kyoto University, Japan.
Hashimoto
W
W
Kumagai
H
H
D000596:Amino Acids / Q000378:metabolism; D004926:Escherichia coli / Q000201:enzymology* / Q000378:metabolism; D005973:Glutamine / Q000378:metabolism*; D005978:Glutathione / Q000378:metabolism; D010455:Peptides / Q000378:metabolism; D005723:gamma-Glutamyltransferase / Q000378:metabolism*
D000596:Amino Acids; D010455:Peptides; D005973:Glutamine; D005723:gamma-Glutamyltransferase; D005978:Glutathione