Pyridoxal kinase

pyridoxal kinase
Identifiers
EC no.	2.7.1.35
CAS no.	9026-42-0
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, a pyridoxal kinase (EC 2.7.1.35) is an enzyme that catalyzes the chemical reaction

ATP + pyridoxal ${\displaystyle \rightleftharpoons }$ ADP + pyridoxal 5'-phosphate

Thus, the two substrates of this enzyme are ATP and pyridoxal, whereas its two products are ADP and pyridoxal 5'-phosphate.

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:pyridoxal 5'-phosphotransferase. Other names in common use include pyridoxal kinase (phosphorylating), pyridoxal 5-phosphate-kinase, pyridoxal phosphokinase, and pyridoxine kinase. This enzyme participates in vitamin B₆ metabolism.

Structural studies

As of late 2007, 15 structures have been solved for this class of enzymes, with PDB accession codes 1LHP, 1LHR, 1RFT, 1RFU, 1RFV, 1TD2, 1VI9, 1YGJ, 1YGK, 1YHJ, 2AJP, 2DDM, 2DDO, 2DDW, and 2F7K.

References

• McCormick DB, Gregory ME, Snell EE (1961). "Pyridoxal phosphokinases. I. Assay, distribution, purification, and properties". J. Biol. Chem. 236 (7): 2076–2084. doi:10.1016/S0021-9258(18)64132-8. PMID 13773826.
• Trufanov AF; Krisanova JA. "Biosynthesis of pyridoxal phosphate by liver sections of rat in vitro". Byull. Eksp. Biol. Med. 22: 40–43.