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2.7.3.4: taurocyamine kinase

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

Word Map on EC 2.7.3.4

Reaction

ATP
+
Taurocyamine
=
ADP
+
N-phosphotaurocyamine

Synonyms

ATP:taurocyamine phosphotransferase, CsTK, guanidino kinase, hypotaurocyamine kinase, kinase (phosphorylating), taurocyamine, kinase, taurocyamine (phosphorylating), MiTK, More, phosphagen kinase, PK1, PK2, SmGK, taurocyamine kinase, taurocyamine phosphotransferase, TK, TPK

ECTree

     2 Transferases
         2.7 Transferring phosphorus-containing groups
             2.7.3 Phosphotransferases with a nitrogenous group as acceptor
                2.7.3.4 taurocyamine kinase

Engineering

Engineering on EC 2.7.3.4 - taurocyamine kinase

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PROTEIN VARIANTS
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
H67A
the mutant shows a decreased Km value compared to the wild type enzyme
H67A/K95Y
the mutant shows significantly decreased Km value compared to the wild type enzyme
K69A
the mutant shows significantly increased Km value compared to the wild type enzyme
K69A/K95Y
the mutant shows significantly decreased Km value compared to the wild type enzyme
K69R
the mutant shows significantly decreased Km value compared to the wild type enzyme
K69R/K95Y
the mutant shows significantly decreased Km value compared to the wild type enzyme
K95A
the mutant shows a 10fold increase in affinity for glycocyamine and has a 7.5fold higher catalytic efficiency for glycocyamine than the wild type enzyme
K95E
activity is largely lost in this mutant
K95H
the mutant has a 3fold higher affinity for taurocyamine
K95I
the mutant has a 3fold higher affinity for taurocyamine
K95R
the mutant has a 3fold higher affinity for taurocyamine
K95Y
an increase in substrate concentration causes a decrease in initial velocity of the reaction performed by this mutant (substrate inhibition)
T68A
the mutant shows significantly decreased Km value compared to the wild type enzyme
T68AA/K95Y
the mutant shows significantly decreased Km value compared to the wild type enzyme
T70A
the mutant shows significantly increased Km value compared to the wild type enzyme
T70A/K95Y
the mutant shows significantly decreased Km value compared to the wild type enzyme
V71A
the mutant shows significantly increased Km value compared to the wild type enzyme and acts like a glycocyamine kinase, rather than a tauromycine kinase
V71A/K95Y
the mutant shows significantly decreased Km value compared to the wild type enzyme
A59G
site-directed mutagenesis on domain 1, the mutant shows a high decrease in affinity and activity for taurocyamine compared to the wild-type enzyme
A62G
site-directed mutagenesis on domain 2, inactive mutant
G58R
site-directed mutagenesis on domain 1, the mutant shows slightly decreased affinity for taurocyamine and a slightly increased activity for taurocyamine compared to the wild-type enzyme
I60V
site-directed mutagenesis on domain 1, the mutant shows decreased affinity and activity for taurocyamine compared to the wild-type enzyme
I63V
site-directed mutagenesis on domain 2, the mutant shows decreased affinity and activity for taurocyamine compared to the wild-type enzyme
R61L
site-directed mutagenesis on domain 2, the mutant shows decreased affinity and activity for taurocyamine compared to the wild-type enzyme
Y84E
site-directed mutagenesis on domain 1, almost inactive mutant
Y84H
site-directed mutagenesis on domain 1, the mutant shows decreased affinity and activity for taurocyamine compared to the wild-type enzyme
Y84I
site-directed mutagenesis on domain 1, the mutant shows decreased affinity and activity for taurocyamine compared to the wild-type enzyme
Y84R
site-directed mutagenesis on domain 1, inactive mutant
Y87E
site-directed mutagenesis on domain 2, inactive mutant
Y87H
site-directed mutagenesis on domain 2, inactive mutant
Y87I
site-directed mutagenesis on domain 2, inactive mutant
Y87R
site-directed mutagenesis on domain 2, inactive mutant
C268S
site-directed mutagenesis
C268S/C631S
site-directed mutagenesis
C631S
site-directed mutagenesis