EC Number | Activating Compound | Comment | Organism | Structure |
---|---|---|---|---|
6.3.4.16 | N-acetylglutamate | the enzyme requires allosteric activation by N-acetylglutamate | Homo sapiens |
EC Number | Cloned (Comment) | Organism |
---|---|---|
6.3.4.16 | gene CPSI, DNA and amino acid sequence determination and analysis, expression of the N-terminally His6-FLAG-tagged enzyme and mutant T1406D in Schizosaccharomyces pombe from pESP5, expression of mature protein of 1462 amino acid residues with the first 39 amino acids of the precursor protein replaced by a methionyl residue | Homo sapiens |
EC Number | Protein Variants | Comment | Organism |
---|---|---|---|
6.3.4.16 | additional information | connstruction of a domain A deleted mutant hCPS_DELTAA and functional characterization, the mutant shows slightly inccreased catalytic efficiency in absence of N-acetylglutamate and a 4fold increased Km for N-acetylglutamate compared to the wild-type enzyme | Homo sapiens |
6.3.4.16 | T1406D | naturally occurring single nucleotide polymorphism, phenotype, overview | Homo sapiens |
EC Number | KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|---|
6.3.4.16 | additional information | - |
additional information | kinetics, the Km of the enzyme for ammonia is 100fold lower than that for CPSs that also use glutamine, EC 6.3.5.5, kinetics for bicarbonate-dependent ATPase and carbamoyl phosphate-dependent ATP synthesis reactions, overview | Homo sapiens | |
6.3.4.16 | 0.29 | - |
N-acetylglutamate | pH 7.6, 37°C, wild-type enzyme | Homo sapiens | |
6.3.4.16 | 0.35 | - |
NH4+ | pH 7.6, 37°C, wild-type enzyme | Homo sapiens | |
6.3.4.16 | 0.44 | - |
N-acetylglutamate | pH 7.6, 37°C, mutant T1406D | Homo sapiens | |
6.3.4.16 | 0.55 | - |
ATP | pH 7.6, 37°C, wild-type enzyme | Homo sapiens | |
6.3.4.16 | 0.58 | - |
NH4+ | pH 7.6, 37°C, mutant T1406D | Homo sapiens | |
6.3.4.16 | 0.68 | - |
ATP | pH 7.6, 37°C, mutant T1406D | Homo sapiens | |
6.3.4.16 | 2.44 | - |
HCO3- | pH 7.6, 37°C, wild-type enzyme | Homo sapiens | |
6.3.4.16 | 2.49 | - |
HCO3- | pH 7.6, 37°C, mutant T1406D | Homo sapiens |
EC Number | Localization | Comment | Organism | GeneOntology No. | Textmining |
---|---|---|---|---|---|
6.3.4.16 | mitochondrial matrix | the N-terminal targeting signal normally directs the nuclear-encoded protein to the mitochondrial matrix and is cleaved as the protein enters the matrix | Homo sapiens | 5759 | - |
EC Number | Metals/Ions | Comment | Organism | Structure |
---|---|---|---|---|
6.3.4.16 | Mg2+ | - |
Homo sapiens |
EC Number | Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|---|
6.3.4.16 | ATP + NH4+ + HCO3- + H2O | Homo sapiens | the human enzyme removes excess, potentially neurotoxic ammonia via the urea cycle in a tightly regulated manner that avoids depletion of the ammonia pool, and shows inability to use glutamine as an alternative nitrogen donor | ADP + phosphate + carbamoyl phosphate | - |
? | |
6.3.4.16 | additional information | Homo sapiens | severe hyperammonaemia and high mortality are observed in hCPS deficiency, a rare autosomal disease | ? | - |
? |
EC Number | Organism | UniProt | Comment | Textmining |
---|---|---|---|---|
6.3.4.16 | Homo sapiens | P31327 | gene CPSI | - |
EC Number | Source Tissue | Comment | Organism | Textmining |
---|---|---|---|---|
6.3.4.16 | liver | - |
Homo sapiens | - |
6.3.4.16 | small intestine | - |
Homo sapiens | - |
EC Number | Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|---|
6.3.4.16 | 2 ATP + NH3 + CO2 + H2O | - |
Homo sapiens | 2 ADP + phosphate + carbamoyl phosphate | - |
? | |
6.3.4.16 | ATP + NH4+ + HCO3- + H2O | - |
Homo sapiens | ADP + phosphate + carbamoyl phosphate | - |
? | |
6.3.4.16 | ATP + NH4+ + HCO3- + H2O | the human enzyme removes excess, potentially neurotoxic ammonia via the urea cycle in a tightly regulated manner that avoids depletion of the ammonia pool, and shows inability to use glutamine as an alternative nitrogen donor | Homo sapiens | ADP + phosphate + carbamoyl phosphate | - |
? | |
6.3.4.16 | additional information | severe hyperammonaemia and high mortality are observed in hCPS deficiency, a rare autosomal disease | Homo sapiens | ? | - |
? |
EC Number | Synonyms | Comment | Organism |
---|---|---|---|
6.3.4.16 | arginine-specific CPS | - |
Homo sapiens |
6.3.4.16 | carbamoyl-phosphate synthetase | - |
Homo sapiens |
6.3.4.16 | CPS | - |
Homo sapiens |
EC Number | Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|---|
6.3.4.16 | 37 | - |
assay at | Homo sapiens |
EC Number | Turnover Number Minimum [1/s] | Turnover Number Maximum [1/s] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|---|
6.3.4.16 | 5.54 | - |
NH3 | pH 7.6, 37°C, mutant T1406D | Homo sapiens | |
6.3.4.16 | 5.73 | - |
NH3 | pH 7.6, 37°C, wild-type enzyme | Homo sapiens |
EC Number | pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|---|
6.3.4.16 | 7.6 | - |
assay at | Homo sapiens |
EC Number | Cofactor | Comment | Organism | Structure |
---|---|---|---|---|
6.3.4.16 | ATP | - |
Homo sapiens |