dephospho-CoA kinase | |||||||||
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Identifiers | |||||||||
EC no. | 2.7.1.24 | ||||||||
CAS no. | 9026-83-9 | ||||||||
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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In enzymology, a dephospho-CoA kinase (EC 2.7.1.24) is an enzyme that catalyzes the chemical reaction
Thus, the two substrates of this enzyme are ATP and dephospho-CoA, whereas its two products are ADP and CoA.
This enzyme belongs to the family of transferases, specifically those transferring phosphorus-containing groups (phosphotransferases) with an alcohol group as acceptor. The systematic name of this enzyme class is ATP:dephospho-CoA 3'-phosphotransferase. Other names in common use include dephosphocoenzyme A kinase (phosphorylating), 3'-dephospho-CoA kinase, and dephosphocoenzyme A kinase. This enzyme participates in pantothenate and coa biosynthesis.
As of late 2007, 8 structures have been solved for this class of enzymes, with PDB accession codes 1JJV, 1N3B, 1T3H, 1VHL, 1VHT, 1VIY, 2GRJ, and 2IF2.
Coenzyme A (CoA, SHCoA, CoASH) is a coenzyme, notable for its role in the synthesis and oxidation of fatty acids, and the oxidation of pyruvate in the citric acid cycle. All genomes sequenced to date encode enzymes that use coenzyme A as a substrate, and around 4% of cellular enzymes use it (or a thioester) as a substrate. In humans, CoA biosynthesis requires cysteine, pantothenate (vitamin B5), and adenosine triphosphate (ATP).
Pantetheine is the cysteamine amide analog of pantothenic acid (vitamin B5). The dimer of this compound, pantethine is more commonly known, and is considered to be the most potent form of vitamin B5. Pantetheine is an intermediate in the catabolism of coenzyme A by the body.
The enzyme [acyl-carrier-protein] phosphodiesterase (EC 3.1.4.14) catalyzes the reaction
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