Crystallization (Comment) | Organism |
---|---|
X-ray crystal structure of the N-phosphonacetyl-L-asparagine complexed with ATCase. Analysis of the crystal structure of the enzyme in the presence of N-phosphonacetyl-L-asparagine reveals that the binding of N-phosphonacetyl-L-asparagine is similar to that of the R-state complex of ATCase with N-phosphonaceyl-L-aspartate, another potent inhibitor of the enzyme | Escherichia coli |
Inhibitors | Comment | Organism | Structure |
---|---|---|---|
N-phosphonacetyl-L-asparagine | potent inhibitor of ATCase | Escherichia coli | |
N-phosphonacetyl-L-aspartate | - |
Escherichia coli |
KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
12 | - |
L-aspartate | - |
Escherichia coli | |
122 | - |
L-asparagine | - |
Escherichia coli |
Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
carbamoyl phosphate + L-aspartate | Escherichia coli | - |
phosphate + N-carbamoyl-L-aspartate | - |
? |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Escherichia coli | - |
- |
- |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
carbamoyl phosphate + L-asparagine | the enzyme catalyzes the carbamoylation of L-Asn with a Km of 122 mM and a maximal velocity 10fold lower than observed with the natural substrate, L-Asp. As opposed to L-Asp, no cooperativity is observed with respect to L-Asn | Escherichia coli | phosphate + N-carbamoyl-L-asparagine | - |
? | |
carbamoyl phosphate + L-aspartate | - |
Escherichia coli | phosphate + N-carbamoyl-L-aspartate | - |
? | |
carbamoyl phosphate + L-aspartate | Arg229, which interacts with the beta-carboxylate of L-Asp, plays a critical role in the orientation of L-Asp in the active site and demonstrates the requirement of the beta-carboxylate of L-Asp in the mechanism of domain closure and the allosteric transition in Escherichia coli ATCase | Escherichia coli | phosphate + N-carbamoyl-L-aspartate | - |
? |
Synonyms | Comment | Organism |
---|---|---|
aspartate transcarbamoylase | - |
Escherichia coli |
ATCase | - |
Escherichia coli |