Protein Variants | Comment | Organism |
---|---|---|
Y426F | wild-type and mutant enzymes Y426F and Y426S. Y426S replacement leads to a 15fold increase in Km for ATP, while all the other kinetic parameters remain unchanged. Y426F replacement does not affect the kinetic behaviour of the enzyme | Escherichia coli |
Y426S | wild-type and mutant enzymes Y426F and Y426S. Y426S replacement leads to a 15fold increase in Km for ATP, while all the other kinetic parameters remain unchanged. Y426F replacement does not affect the kinetic behaviour of the enzyme | Escherichia coli |
KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.0153 | - |
Asn | wild-type, ATP-diphosphate exchange | Escherichia coli | |
0.0225 | - |
Asn | mutant Y426F, ATP-diphosphate exchange | Escherichia coli | |
0.0306 | - |
ATP | mutant Y426F, aminoacylation | Escherichia coli | |
0.0323 | - |
Asn | wild-type, aminoacylation | Escherichia coli | |
0.0326 | - |
Asn | mutant Y426F, aminoacylation | Escherichia coli | |
0.0336 | - |
Asn | mutant Y426S, aminoacylation | Escherichia coli | |
0.0383 | - |
Asn | mutant Y426S, ATP-diphosphate exchange | Escherichia coli | |
0.076 | - |
ATP | ATP, , wild-type, aminoacylation | Escherichia coli | |
0.245 | - |
ATP | mutant Y426S, aminoacylation | Escherichia coli | |
0.5 | - |
ATP | ATP, , wild-type, mutant Y426F, ATP-diphosphate exchange | Escherichia coli | |
7 | - |
ATP | mutant Y426S, ATP-diphosphate exchange | Escherichia coli |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Escherichia coli | - |
wild-type and mutant enzymes Y426F and Y426S | - |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
ATP + L-asparagine + tRNAAsn | - |
Escherichia coli | AMP + diphosphate + L-asparaginyl-tRNAAsn | - |
? | |
additional information | ATP-diphosphate exchange | Escherichia coli | ? | - |
? |
Turnover Number Minimum [1/s] | Turnover Number Maximum [1/s] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.3 | - |
ATP | mutant Y426S, aminoacylation | Escherichia coli | |
0.7 | - |
Asn | mutant Y426S, aminoacylation | Escherichia coli | |
1 | - |
Asn | ATP, , mutant Y426F, aminoacylation | Escherichia coli | |
1.3 | - |
ATP | Asn, , mutant Y426S, ATP-diphosphate exchange | Escherichia coli | |
1.3 | - |
ATP | wild-type, aminoacylation | Escherichia coli | |
1.6 | - |
Asn | wild-type, aminoacylation | Escherichia coli | |
2.1 | - |
ATP | mutant Y426S, ATP-diphosphate exchange | Escherichia coli | |
2.2 | - |
ATP | wild-type, 37°C, ATP-diphosphate exchange | Escherichia coli | |
2.3 | - |
ATP | mutant Y426F, ATP-diphosphate exchange | Escherichia coli | |
2.7 | - |
Asn | mutant Y426F, , ATP-diphosphate exchange | Escherichia coli | |
2.8 | - |
Asn | mutant Y426F, aminoacylation | Escherichia coli | |
2.8 | - |
Asn | Asn, , wild-type, ATP-diphosphate exchange | Escherichia coli |