Acetylglutamate kinase

Last updated
acetylglutamate kinase
Identifiers
EC no. 2.7.2.8
CAS no. 9027-58-1
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
Search
PMC articles
PubMed articles
NCBI proteins

In enzymology, an acetylglutamate kinase (EC 2.7.2.8) is an enzyme that catalyzes the chemical reaction:

Contents

ATP + N-acetyl-L-glutamate ADP + N-acetyl-L-glutamyl 5-phosphate

Thus, the two substrates of this enzyme are ATP and N-acetyl-L-glutamate, whereas its two products are ADP and N-acetyl-L-glutamyl 5-phosphate.

This enzyme belongs to the family of transferases, specifically those transferring phosphorus-containing groups (phosphotransferases) with a carboxy group as acceptor. This enzyme participates in urea cycle and metabolism of amino groups.

Nomenclature

The systematic name of this enzyme class is ATP:N-acetyl-L-glutamate 5-phosphotransferase. Other names in common use include:

Structural studies

As of late 2007, 9 structures have been solved for this class of enzymes, with PDB accession codes 1GS5, 1GSJ, 1OH9, 1OHA, 1OHB, 2AP9, 2BTY, 2BUF, and 2RD5.

Related Research Articles

In molecular biology, biosynthesis is a multi-step, enzyme-catalyzed process where substrates are converted into more complex products in living organisms. In biosynthesis, simple compounds are modified, converted into other compounds, or joined to form macromolecules. This process often consists of metabolic pathways. Some of these biosynthetic pathways are located within a single cellular organelle, while others involve enzymes that are located within multiple cellular organelles. Examples of these biosynthetic pathways include the production of lipid membrane components and nucleotides. Biosynthesis is usually synonymous with anabolism.

<i>N</i>-Acetylglutamic acid Chemical compound

N-Acetylglutamic acid (also referred to as N-acetylglutamate, abbreviated NAG, chemical formula C7H11NO5) is biosynthesized from glutamate and acetylornithine by ornithine acetyltransferase, and from glutamic acid and acetyl-CoA by the enzyme N-acetylglutamate synthase. The reverse reaction, hydrolysis of the acetyl group, is catalyzed by a specific hydrolase. It is the first intermediate involved in the biosynthesis of arginine in prokaryotes and simple eukaryotes and a regulator in the process known as the urea cycle that converts toxic ammonia to urea for excretion from the body in vertebrates.

<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.

In enzymology, a N-acetyl-gamma-glutamyl-phosphate reductase (EC 1.2.1.38) is an enzyme that catalyzes the chemical reaction

In enzymology, an acetylornithine transaminase (EC 2.6.1.11) is an enzyme that catalyzes the chemical reaction

In enzymology, an acylglycerol kinase is an enzyme that catalyzes the chemical reaction

In enzymology, arginine kinase is an enzyme that catalyzes the chemical reaction

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

<span class="mw-page-title-main">Glutamate 5-kinase</span> Enzyme

In enzymology, a glutamate 5-kinase is an enzyme that catalyzes the chemical reaction

In enzymology, a guanidinoacetate kinase is an enzyme that catalyzes the chemical reaction

<span class="mw-page-title-main">Guanylate kinase</span> Enzyme

In enzymology, a guanylate kinase is an enzyme that catalyzes the chemical reaction

In enzymology, a [isocitrate dehydrogenase (NADP+)] kinase (EC 2.7.11.5) is an enzyme that catalyzes the chemical reaction:

<span class="mw-page-title-main">N-acetylglucosamine kinase</span>

In enzymology, a N-acetylglucosamine kinase is an enzyme that catalyzes the chemical reaction

In enzymology, a nucleoside-phosphate kinase is an enzyme that catalyzes the chemical reaction

In enzymology, a pseudouridine kinase is an enzyme that catalyzes the chemical reaction

In enzymology, a tagatose-6-phosphate kinase is an enzyme that catalyzes the chemical reaction

In enzymology, a taurocyamine kinase is an enzyme that catalyzes the chemical reaction

In enzymology, a thiamine kinase is an enzyme that catalyzes the chemical reaction

<span class="mw-page-title-main">Aldehyde dehydrogenase 18 family, member A1</span> Protein-coding gene in the species Homo sapiens

Delta-1-pyrroline-5-carboxylate synthetase (P5CS) is an enzyme that in humans is encoded by the ALDH18A1 gene. This gene is a member of the aldehyde dehydrogenase family and encodes a bifunctional ATP- and NADPH-dependent mitochondrial enzyme with both gamma-glutamyl kinase and gamma-glutamyl phosphate reductase activities. The encoded protein catalyzes the reduction of glutamate to delta1-pyrroline-5-carboxylate, a critical step in the de novo biosynthesis of proline, ornithine and arginine. Mutations in this gene lead to hyperammonemia, hypoornithinemia, hypocitrullinemia, hypoargininemia and hypoprolinemia and may be associated with neurodegeneration, cataracts and connective tissue diseases. Alternatively spliced transcript variants, encoding different isoforms, have been described for this gene. As reported by Bruno Reversade and colleagues, ALDH18A1 deficiency or dominant-negative mutations in P5CS in humans causes a progeroid disease known as De Barsy Syndrome.

UDP-N-acetylglucosamine kinase is an enzyme with systematic name ATP:UDP-N-acetyl-alpha-D-glucosamine 3'-phosphotransferase. This enzyme catalyses the following chemical reaction

References