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2.7.4.8: guanylate kinase

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

Word Map on EC 2.7.4.8

Reaction

ATP
+
GMP
=
ADP
+
GDP

Synonyms

5'-GMP kinase, apo-EcGMPK, ATP: GMP phosphotransferase, ATP:GMP phosphotransferase, BmGK, CASK polypeptide, Cavbeta1b, Cavbeta2a, deoxyguanylate kinase, DLG1/SAP97, ecGMPK, GK, GK3, GKc, GKpm, GMK, GMK3, GMP kinase, GMPK, guanosine monophosphate kinase, guanosine monophosphate kinase (EcGMPK), guanylate kinase, guanylate kinase (GK), guanylate monophosphate kinase, GUK, kinase, guanylate (phosphorylating), MAGUK, MAGUK PSD-95, MAGUKs, membrane associated guanylate kinase, membrane associated guanylate kinase protein, membrane-associated guanylate kinase, membrane-associated guanylate kinases, MoGuk1, MoGuk2, More, organellar GK, post-synaptic density-95 membrane associated guanylate kinase, postsynaptic density protein-95 SH3 GK, PSD-95 GK, PSD-95 MAGUK, PSD-95alpha, PSD-95beta, Staphylococcus aureus guanylate monophosphate kinase, voltage-gated calcium channel beta1b, voltage-gated calcium channel beta2a, YGK

ECTree

     2 Transferases
         2.7 Transferring phosphorus-containing groups
             2.7.4 Phosphotransferases with a phosphate group as acceptor
                2.7.4.8 guanylate kinase

Temperature Stability

Temperature Stability on EC 2.7.4.8 - guanylate kinase

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TEMPERATURE STABILITY
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
100
-
10 min, about 80% loss of activity, t1/2: 3 min (dGMP-phosphorylation), t1/2: 4 min (GMP-phosphorylation)
30
-
at least 15 min stable from pH 5.5-8.5
42.4
Tm value, mutant enzyme R96H
43.8
Tm value, mutant enzyme S121F
44.4
Tm value, mutant enzyme V91M
44.6
Tm value, mutant enzyme S186Y
45
-
t1/2: 10 min
45.5
Tm value, mutant enzyme S2L
45.6
Tm value, mutant enzyme R116Q
46
Tm value, mutant enzyme G3A
47.4
Tm value, wild-type enzyme
50
-
10 min, inactivation
60
-
10 min, 90% loss of activity
80
-
incubation for 2 min, 5 min, 10 min or 20 min leads to 43%, 67%, 89% or 97% loss of activity, respectively, 30 min: inactivation
additional information
-
thermostability of the enzyme is found to be significantly enhanced in the presence of the substrates