Carbamate kinase

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carbamate kinase
Identifiers
EC no. 2.7.2.2
CAS no. 9026-69-1
Databases
IntEnz IntEnz view
BRENDA BRENDA entry
ExPASy NiceZyme view
KEGG KEGG entry
MetaCyc metabolic pathway
PRIAM profile
PDB structures RCSB PDB PDBe PDBsum
Gene Ontology AmiGO / QuickGO
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PMC articles
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NCBI proteins

In enzymology, a carbamate kinase (EC 2.7.2.2) is an enzyme that catalyzes the chemical reaction

ATP + NH3 + CO2 ADP + carbamoyl phosphate

The 3 substrates of this enzyme are ATP, NH3, and CO2, whereas its two products are ADP and carbamoyl phosphate.

This enzyme belongs to the family of transferases, specifically those transferring phosphorus-containing groups (phosphotransferases) with a carboxy group as acceptor. The systematic name of this enzyme class is ATP:carbamate phosphotransferase. Other names in common use include CKase, carbamoyl phosphokinase, and carbamyl phosphokinase. This enzyme participates in 4 metabolic pathways: purine metabolism, glutamate metabolism, arginine and proline metabolism, and nitrogen metabolism.

Structural studies

As of late 2007, 3 structures have been solved for this class of enzymes, with PDB accession codes 1B7B, 1E19, and 2E9Y.

Related Research Articles

<span class="mw-page-title-main">Carbamoyl phosphate synthetase</span> Class of enzymes

Carbamoyl phosphate synthetase catalyzes the ATP-dependent synthesis of carbamoyl phosphate from glutamine or ammonia and bicarbonate. This enzyme catalyzes the reaction of ATP and bicarbonate to produce carboxy phosphate and ADP. Carboxy phosphate reacts with ammonia to give carbamic acid. In turn, carbamic acid reacts with a second ATP to give carbamoyl phosphate plus ADP.

Carbamoyl phosphate synthetase (glutamine-hydrolysing) is an enzyme that catalyzes the reactions that produce carbamoyl phosphate in the cytosol. Its systemic name is hydrogen-carbonate:L-glutamine amido-ligase .

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<span class="mw-page-title-main">ATP:guanido phosphotransferase family</span>

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References


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