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choline kinase (CHKA)
Function:
- may have a regulatory role in phosphatidylcholine synthesis
- CDP-choline & CDP-ethanolamine pathways; initial step
ATP + choline ADP + O-phosphocholine
Structure:
- homotetramer (putative)
- belongs to the choline/ethanolamine kinase family
Compartment: cytoplasm
Alternative splicing: named isoforms=2
Related
choline/ethanolamine kinase; choline kinase beta; CKB; choline kinase-like protein; ethanolamine kinase; EK; ethanolamine kinase beta; EKB; choline/ethanolamine kinase beta; CKEKB (CHKB, CHETK, CHKL)
General
kinase or ATP-phosphotransferase
Properties
SIZE: entity length = 457 aa
MW = 52 kD
COMPARTMENT: cytoplasm
MOTIF: proline-rich region
SITE: 50-85
MOTIF: proline residue (SEVERAL)
histidine residue {H304}
MISC-INFO: KM [ATP] 1.0 MM
KM [choline] 14 UM
Database Correlations
OMIM 118491
UniProt P35790
Pfam PF01633
KEGG correlations
ENZYME 2.7.1.32
References
UniProt :accession P35790