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Literature summary for 2.3.2.2 extracted from

  • Rambabu, K.; Pattabiraman, T.N.
    Studies on the properties of the variants of gamma-glutamyl transpeptidase in human urine (1982), J. Biosci., 4, 287-294.
No PubMed abstract available

General Stability

General Stability Organism
PMSF stabilizes Homo sapiens

Inhibitors

Inhibitors Comment Organism Structure
Acetazolamide Maleate
-
Homo sapiens
iodoacetamide inhibition of transpeptidase reaction is more efficient than that of autotranspeptidase reaction Homo sapiens

Organism

Organism UniProt Comment Textmining
Homo sapiens
-
-
-

Source Tissue

Source Tissue Comment Organism Textmining
urine high- and low-molecular weight variants Homo sapiens
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
(5-L-glutamyl)-peptide + acceptor + H+
-
Homo sapiens peptide + 5-L-glutamyl amino acid
-
?
5-L-glutamyl-4-nitroanilide + 5-L-glutamyl-4-nitroanilide autotranspeptidase Homo sapiens 5-L-glutamyl-5-L-glutamyl-4-nitroanilide + 4-nitroaniline
-
?
5-L-glutamyl-4-nitroanilide + glycylglycine GGT activity Homo sapiens 4-nitroaniline + 5-L-glutamylglycylglycine
-
?
5-L-glutamyl-4-nitroanilide + L-cystine best acceptor, low molecular weight enzyme variant Homo sapiens 4-nitroaniline + 5-L-glutamyl-L-cystine
-
?
5-L-glutamyl-4-nitroanilide + L-glutamine best acceptor, high molecular weight enzyme variant Homo sapiens 4-nitroaniline + 5-L-glutamyl-L-glutamine
-
?
5-L-glutamyl-4-nitroanilide + L-glutamine best acceptor Homo sapiens 4-nitroaniline + 5-L-glutamyl-L-glutamine
-
?

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
8.6
-
L-Glu-4-nitroanilide + glycylglycine Homo sapiens
9.4
-
L-Glu-4-nitroanilide + L-Glu-4-nitroanilide Homo sapiens