Cloned (Comment) | Organism |
---|---|
expression in Escherichia coli of chimeras of a carboxylesterase (EC 3.1.1.1) from Archaeoglobus fulgidus and an acylpeptide hydrolase (EC 3.4.19.1) from Aeropyrum pernix K1 | Archaeoglobus fulgidus |
Protein Variants | Comment | Organism |
---|---|---|
additional information | construction of chimeras of a carboxylesterase (EC 3.1.1.1) from Archaeoglobus fulgidus and an acylpeptide hydrolase (EC 3.4.19.1) from Aeropyrum pernix K1. Their activities to hydrolyze 4-nitrophenyl esters (pNP) with different acyl chain lengths is explored. The chimeras inherit the thermophilic property of both parents. The substrate-binding domain is the dominant factor on enzyme substrate specificity, and the optimization of the newly formed domain interface is an important guarantee for successful domain swapping of proteins with low-sequence homology | Archaeoglobus fulgidus |
KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.0327 | - |
4-nitrophenyl butanoate | 80°C, pH 8.0, wild-type enzyme | Archaeoglobus fulgidus | |
0.0768 | - |
4-nitrophenyl acetate | 80°C, pH 8.0, wild-type enzyme | Archaeoglobus fulgidus | |
0.289 | - |
4-nitrophenyl octanoate | 80°C, pH 8.0, wild-type enzyme | Archaeoglobus fulgidus | |
0.507 | - |
4-nitrophenyl hexadecanoate | 80°C, pH 8.0, wild-type enzyme | Archaeoglobus fulgidus | |
0.651 | - |
4-nitrophenyl decanoate | 80°C, pH 8.0, wild-type enzyme | Archaeoglobus fulgidus | |
0.654 | - |
4-nitrophenyl dodecanoate | 80°C, pH 8.0, wild-type enzyme | Archaeoglobus fulgidus | |
1.054 | - |
4-nitrophenyl tetradecanoate | 80°C, pH 8.0, wild-type enzyme | Archaeoglobus fulgidus |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Archaeoglobus fulgidus | - |
- |
- |
Purification (Comment) | Organism |
---|---|
purification of chimeras of a carboxylesterase (EC 3.1.1.1) from Archaeoglobus fulgidus and an acylpeptide hydrolase (EC 3.4.19.1) from Aeropyrum pernix K1 | Archaeoglobus fulgidus |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
4-nitrophenyl acetate + H2O | - |
Archaeoglobus fulgidus | 4-nitrophenol + acetate | - |
? | |
4-nitrophenyl butanoate + H2O | - |
Archaeoglobus fulgidus | 4-nitrophenol + butanoate | - |
? | |
4-nitrophenyl decanoate + H2O | - |
Archaeoglobus fulgidus | 4-nitrophenol + decanoate | - |
? | |
4-nitrophenyl dodecanoate + H2O | - |
Archaeoglobus fulgidus | 4-nitrophenol + dodecanoate | - |
? | |
4-nitrophenyl hexadecanoate + H2O | - |
Archaeoglobus fulgidus | 4-nitrophenol + hexadecanoate | - |
? | |
4-nitrophenyl octanoate + H2O | - |
Archaeoglobus fulgidus | 4-nitrophenol + octanoate | - |
? | |
4-nitrophenyl tetradecanoate + H2O | - |
Archaeoglobus fulgidus | 4-nitrophenol + tetradecanoate | - |
? |
Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|
80 | - |
wild-type enzyme | Archaeoglobus fulgidus |
Temperature Minimum [°C] | Temperature Maximum [°C] | Comment | Organism |
---|---|---|---|
60 | 90 | 60°C: about 55% of maximal activity, 90°C: about 85% of maximal activity, wild-type enzyme | Archaeoglobus fulgidus |
Turnover Number Minimum [1/s] | Turnover Number Maximum [1/s] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
5.3 | - |
4-nitrophenyl hexadecanoate | 80°C, pH 8.0, wild-type enzyme | Archaeoglobus fulgidus | |
42.3 | - |
4-nitrophenyl tetradecanoate | 80°C, pH 8.0, wild-type enzyme | Archaeoglobus fulgidus | |
120 | - |
4-nitrophenyl acetate | 80°C, pH 8.0, wild-type enzyme | Archaeoglobus fulgidus | |
128 | - |
4-nitrophenyl dodecanoate | 80°C, pH 8.0, wild-type enzyme | Archaeoglobus fulgidus | |
277 | - |
4-nitrophenyl butanoate | 80°C, pH 8.0, wild-type enzyme | Archaeoglobus fulgidus | |
477 | - |
4-nitrophenyl decanoate | 80°C, pH 8.0, wild-type enzyme | Archaeoglobus fulgidus | |
831 | - |
4-nitrophenyl octanoate | 80°C, pH 8.0, wild-type enzyme | Archaeoglobus fulgidus |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
7 | 7.5 | wild-type enzyme | Archaeoglobus fulgidus |
pH Minimum | pH Maximum | Comment | Organism |
---|---|---|---|
6 | 10.5 | pH 6.0: about 50% of maximal activity, pH 10.5: about 50% of maximal activity, wild-type enzyme | Archaeoglobus fulgidus |
kcat/KM Value [1/mMs-1] | kcat/KM Value Maximum [1/mMs-1] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
10 | - |
4-nitrophenyl hexadecanoate | 80°C, pH 8.0, wild-type enzyme | Archaeoglobus fulgidus | |
40 | - |
4-nitrophenyl tetradecanoate | 80°C, pH 8.0, wild-type enzyme | Archaeoglobus fulgidus | |
200 | - |
4-nitrophenyl dodecanoate | 80°C, pH 8.0, wild-type enzyme | Archaeoglobus fulgidus | |
700 | - |
4-nitrophenyl decanoate | 80°C, pH 8.0, wild-type enzyme | Archaeoglobus fulgidus | |
1600 | - |
4-nitrophenyl acetate | 80°C, pH 8.0, wild-type enzyme | Archaeoglobus fulgidus | |
2900 | - |
4-nitrophenyl octanoate | 80°C, pH 8.0, wild-type enzyme | Archaeoglobus fulgidus | |
8500 | - |
4-nitrophenyl butanoate | 80°C, pH 8.0, wild-type enzyme | Archaeoglobus fulgidus |