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2.6.1.52: phosphoserine transaminase

This is an abbreviated version!
For detailed information about phosphoserine transaminase, go to the full flat file.

Reaction

4-phosphooxy-L-threonine
+
2-oxoglutarate
=
(3R)-3-hydroxy-2-oxo-4-phosphooxybutanoate
 +
L-glutamate

Synonyms

3-O-phospho-L-serine:2-oxoglutarate aminotransferase, 3-phosphoserine aminotransferase, AspAT, AtPSAT, AtPSAT1, BCIR PSAT, bmPSAT, EhPSAT, hydroxypyruvic phosphate-glutamic transaminase, L-phosphoserine aminotransferase, phosphohydroxypyruvate transaminase, phosphohydroxypyruvic-glutamic transaminase, phosphoserine aminotransferase, phosphoserine aminotransferase 1, phosphoserine aminotransferase1, phosphoserine aminotransferase2, phosphoserine aminotransferases, PSAT, PSAT alpha, PSAT beta, PSAT-BALC, PSAT-BCIRA, PSAT-ECOLI, PSAT1, PSAT2, PSerAT, serC, sll1559

ECTree

     2 Transferases
         2.6 Transferring nitrogenous groups
             2.6.1 Transaminases
                2.6.1.52 phosphoserine transaminase

Specific Activity

Specific Activity on EC 2.6.1.52 - phosphoserine transaminase

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SPECIFIC ACTIVITY [µmol/min/mg]
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
0.007
substrate L-homoserine, pH 8.2, 30°C, recombinant mutant R42W/R77W/H328E
0.01
substrate L-homoserine, pH 8.2, 30°C, recombinant mutant H41K
0.022
substrate L-homoserine, pH 8.2, 30°C, recombinant mutant R42E
0.031
substrate L-homoserine, pH 8.2, 30°C, recombinant mutant H41Y
0.036
substrate L-homoserine, pH 8.2, 30°C, recombinant mutant R42W/R77W/H328L
0.051
substrate L-homoserine, pH 8.2, 30°C, recombinant mutant H41Q
0.058
substrate L-homoserine, pH 8.2, 30°C, recombinant mutant R42W/R77E
0.079
substrate L-phosphoserine, pH 8.2, 30°C, recombinant mutant R42W/R77W
0.08
substrate L-homoserine, pH 8.2, 30°C, recombinant mutant R42W/R77W/H328Y
0.115
substrate L-homoserine, pH 8.2, 30°C, recombinant wild-type enzyme
0.131
substrate L-homoserine, pH 8.2, 30°C, recombinant mutant R42K
0.145
substrate L-homoserine, pH 8.2, 30°C, recombinant mutant R42W/R329G
0.148
substrate L-homoserine, pH 8.2, 30°C, recombinant mutant R42Q
0.18
substrate L-homoserine, pH 8.2, 30°C, recombinant mutant R42W/R77I
0.224
substrate L-homoserine, pH 8.2, 30°C, recombinant mutant R42W/R77S
0.266
substrate L-homoserine, pH 8.2, 30°C, recombinant mutant R42W
0.273
substrate L-homoserine, pH 8.2, 30°C, recombinant mutant R42W/R77T
0.281
substrate L-homoserine, pH 8.2, 30°C, recombinant mutant R42W/R329Q
0.293
substrate L-homoserine, pH 8.2, 30°C, recombinant mutant R42W/R329H
0.47
-
substrate: O-phospho-L-serine, pH 8.5, 25°C
0.487
substrate L-homoserine, pH 8.2, 30°C, recombinant mutant R42W/R77W
0.66
substrate: 2-oxoglutarate, pH 8.5, 25°C
0.67
substrate: O-phospho-L-serine, pH 8.5, 25°C
0.74
-
substrate: 2-oxoglutarate, pH 8.5, 25°C
1.29
-
-
1.3
purified enzyme, pH 8.1-8.2, 25°C
12
pH and temperature not specified in the publication
13.2
-
-
1416
purified enzyme, pH 6.8-7.2, 38°C
21.22
-
substrate: L-glutamate, pH 8.5, 25°C
3.406
pH 8.2, 30°C, substrate L-phosphoserine, recombinant wild-type enzyme
3.8
pH not specified in the publication, 25°C, purified recombinant enzyme, substrate 3-phosphooxypyruvate
42
purified recombinant enzyme, pH 6.1, 25°C
42.3
purified recombinant enzyme, pH 8.2, 25°C
44.4
purified recombinant enzyme mutant K2G, pH 6.1, 25°C
5.82
substrate: L-glutamate, pH 8.5, 25°C
6.14
substrate: 3-phosphohydroxypyruvate, pH 8.5, 25°C
7
purified enzyme, pH and temperature not specified in the publication
9.65
-
substrate: 3-phosphohydroxypyruvate, pH 8.5, 25°C
additional information
-
13 U/mg