title: Escherichia coli K-12 can utilize an exogenous gamma-glutamyl peptide as an amino acid source, for which gamma-glutamyltranspeptidase is essential.
abstract: 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.
authors.affiliation: Department of Food Science and Technology, Faculty of Agriculture, Kyoto University, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Suzuki
authors.forename: W
authors.initials: W
authors.lastname: Hashimoto
authors.forename: H
authors.initials: H
authors.lastname: Kumagai
mesh_terms: 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*
chemical_list: D000596:Amino Acids; D010455:Peptides; D005973:Glutamine; D005723:gamma-Glutamyltransferase; D005978:Glutathione