Cloned (Comment) | Organism |
---|---|
the maltose binding protein-fused enzyme is expressed in Escherichia coli BL21(DE3) cells | Arenicola brasiliensis |
Protein Variants | Comment | Organism |
---|---|---|
H67A | the mutant shows a decreased Km value compared to the wild type enzyme | Arenicola brasiliensis |
H67A/K95Y | the mutant shows significantly decreased Km value compared to the wild type enzyme | Arenicola brasiliensis |
K69A | the mutant shows significantly increased Km value compared to the wild type enzyme | Arenicola brasiliensis |
K69A/K95Y | the mutant shows significantly decreased Km value compared to the wild type enzyme | Arenicola brasiliensis |
K69R | the mutant shows significantly decreased Km value compared to the wild type enzyme | Arenicola brasiliensis |
K69R/K95Y | the mutant shows significantly decreased Km value compared to the wild type enzyme | Arenicola brasiliensis |
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 | Arenicola brasiliensis |
K95E | activity is largely lost in this mutant | Arenicola brasiliensis |
K95H | the mutant has a 3fold higher affinity for taurocyamine | Arenicola brasiliensis |
K95I | the mutant has a 3fold higher affinity for taurocyamine | Arenicola brasiliensis |
K95R | the mutant has a 3fold higher affinity for taurocyamine | Arenicola brasiliensis |
K95Y | an increase in substrate concentration causes a decrease in initial velocity of the reaction performed by this mutant (substrate inhibition) | Arenicola brasiliensis |
T68A | the mutant shows significantly decreased Km value compared to the wild type enzyme | Arenicola brasiliensis |
T68AA/K95Y | the mutant shows significantly decreased Km value compared to the wild type enzyme | Arenicola brasiliensis |
T70A | the mutant shows significantly increased Km value compared to the wild type enzyme | Arenicola brasiliensis |
T70A/K95Y | the mutant shows significantly decreased Km value compared to the wild type enzyme | Arenicola brasiliensis |
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 | Arenicola brasiliensis |
V71A/K95Y | the mutant shows significantly decreased Km value compared to the wild type enzyme | Arenicola brasiliensis |
KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.082 | - |
Taurocyamine | mutant enzyme K95Y, in 100 mM Tris-HCl, at pH 8.0 and 25°C | Arenicola brasiliensis | |
0.14 | - |
Taurocyamine | mutant enzyme T68A/K95Y, in 100 mM Tris-HCl, at pH 8.0 and 25°C | Arenicola brasiliensis | |
0.153 | - |
Taurocyamine | mutant enzyme K69A/K95Y, in 100 mM Tris-HCl, at pH 8.0 and 25°C | Arenicola brasiliensis | |
0.184 | - |
Taurocyamine | mutant enzyme H67A/K95Y, in 100 mM Tris-HCl, at pH 8.0 and 25°C | Arenicola brasiliensis | |
0.205 | - |
Taurocyamine | mutant enzyme K95A, in 100 mM Tris-HCl, at pH 8.0 and 25°C | Arenicola brasiliensis | |
0.217 | - |
Taurocyamine | mutant enzyme K69R/K95Y, in 100 mM Tris-HCl, at pH 8.0 and 25°C | Arenicola brasiliensis | |
0.278 | - |
Taurocyamine | mutant enzyme K95I, in 100 mM Tris-HCl, at pH 8.0 and 25°C | Arenicola brasiliensis | |
0.287 | - |
Taurocyamine | mutant enzyme K95R, in 100 mM Tris-HCl, at pH 8.0 and 25°C | Arenicola brasiliensis | |
0.313 | - |
Taurocyamine | mutant enzyme K95H, in 100 mM Tris-HCl, at pH 8.0 and 25°C | Arenicola brasiliensis | |
0.332 | - |
Taurocyamine | mutant enzyme T70A/K95Y, in 100 mM Tris-HCl, at pH 8.0 and 25°C | Arenicola brasiliensis | |
0.603 | - |
Taurocyamine | mutant enzyme V71A/K95Y, in 100 mM Tris-HCl, at pH 8.0 and 25°C | Arenicola brasiliensis | |
0.718 | - |
Taurocyamine | mutant enzyme T68A, in 100 mM Tris-HCl, at pH 8.0 and 25°C | Arenicola brasiliensis | |
0.742 | - |
Taurocyamine | mutant enzyme K69R, in 100 mM Tris-HCl, at pH 8.0 and 25°C | Arenicola brasiliensis | |
0.813 | - |
Taurocyamine | mutant enzyme H67A, in 100 mM Tris-HCl, at pH 8.0 and 25°C | Arenicola brasiliensis | |
0.913 | - |
Taurocyamine | wild type enzyme, in 100 mM Tris-HCl, at pH 8.0 and 25°C | Arenicola brasiliensis | |
1.228 | - |
Taurocyamine | mutant enzyme K69A, in 100 mM Tris-HCl, at pH 8.0 and 25°C | Arenicola brasiliensis | |
1.868 | - |
Taurocyamine | mutant enzyme T70A, in 100 mM Tris-HCl, at pH 8.0 and 25°C | Arenicola brasiliensis | |
2.091 | - |
Taurocyamine | mutant enzyme V71A, in 100 mM Tris-HCl, at pH 8.0 and 25°C | Arenicola brasiliensis | |
13.28 | - |
Taurocyamine | mutant enzyme K95E, in 100 mM Tris-HCl, at pH 8.0 and 25°C | Arenicola brasiliensis |
Localization | Comment | Organism | GeneOntology No. | Textmining |
---|---|---|---|---|
mitochondrion | - |
Arenicola brasiliensis | 5739 | - |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Arenicola brasiliensis | Q4AEC6 | - |
- |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
ATP + taurocyamine | - |
Arenicola brasiliensis | ADP + N-phosphotaurocyamine | - |
? |