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2.3.2.2: gamma-glutamyltransferase

This is an abbreviated version!
For detailed information about gamma-glutamyltransferase, go to the full flat file.

Word Map on EC 2.3.2.2

Reaction

a (5-L-glutamyl)-peptide
+
an amino acid
=
a peptide
 +
a 5-L-glutamyl amino acid

Synonyms

(5-L-glutamyl) peptide: amino-acid 5-glutamyl transferase, alpha-glutamyl transpeptidase, AngammaGT, AsGGT1, At1g69820, At4g29210, At4g39640, At4g39650, BaGGT, BaGGT42, BaGGT469, BlGGT, BlGGT13, BsGGT168, Cgl0954, eqGGT, gamma glutamyl transferase, gamma-glutamyl peptidyltransferase, gamma-glutamyl transferase, gamma-glutamyl transferase 1, gamma-glutamyl transferase 5, gamma-glutamyl transferase/transpeptidase, gamma-glutamyl transferases, gamma-glutamyl transpeptidase, gamma-glutamyl transpeptidase 1, gamma-glutamyl transpeptidase 4, gamma-glutamyl transpeptidase-1, gamma-glutamyl-transpeptidase, gamma-glutamyltransferase, gamma-glutamyltranspeptidase, gamma-GPT, gamma-GT, gamma-GTase, gamma-GTP, gammaGT, GGT, GGT A, GGT I, GGT-1, GGT1, GGT2, GGT3, GGT4, GGT5, ggtB, GGTII protein, GGTLA1, glutamyl transpeptidase, glutamyltransferase, gamma-, HGGT, L-gamma-glutamyl transpeptidase, L-gamma-glutamyltransferase, L-glutamyltransferase, More, PnGGT, SBLGGT, VvGGT3

ECTree

     2 Transferases
         2.3 Acyltransferases
             2.3.2 Aminoacyltransferases
                2.3.2.2 gamma-glutamyltransferase

Temperature Stability

Temperature Stability on EC 2.3.2.2 - gamma-glutamyltransferase

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TEMPERATURE STABILITY
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
20 - 70
-
purified native enzyme, the enzyme retains more than 88% of its activity at 20-70°C, but the enzyme activity is significantly decreased at temperatures above 70°C
37 - 77
in both the transpeptidation and hydrolysis reactions, wild type enzyme exhibits full activity up to 47°C. At temperatures greater than 62°C, the wild type enzyme is rendered completely inactive
4 - 30
-
at least 10 min stable
40 - 50
-
there is hardly any activity loss of the purified recombinant enzyme after preincubation at 40 °C for 72 h, but the activity drops to 7.5% after preincubation for 8 h at 50°C
40 - 60
thermal stability of BaGGT469 is extremely low and its residual activity is completely lost within 10 min at 60°C. But BaGGT469 is quite stable in the presence of substrate at 40°C
43
-
10 min, completely stable
48
-
t1/2: 15 min
55
-
inactivation within 15 min at pH 8.0
59.5 - 70
the melting temperature of enzyme BlGGT is around 59.5°C, the irreversible denaturation of this enzyme occurs at 70°C
65
-
inactivation, GSH and serine/borate protect
additional information