Protein
Cholinephosphotransferase 1
Organism
Saccharomyces cerevisiae (strain ATCC 204508 / S288c)
Function
Catalyzes the final step in the CDP-choline route leading to phosphatidylcholin (PC). Preferentially uses CDP-monomethylethanolamine as aminoalcohol substrate. Shows highest activity toward di- and mono-unsaturated diacylglycerol species as lipid substrates. The CDP-choline pathway only contributes to net PC synthesis if exogenous choline is present. In its absence, this pathway recycles choline from PC turnover and may contribute to maintaining the proper PC species composition.
Similarity
Belongs to the CDP-alcohol phosphatidyltransferase class-I family.
Sequence
MGFFIPQSSLGNLKLYKYQSDDRSFLSNHVLRPFWRKFATIFPLWMAPNLVTLLGFCFIIFNVLTTLYYDPYFDQESPRWTYFSYAIGLFLYQTFDACDGMHARRTGQQGPLGELFDHCIDSINTTLSMIPVCSMTGMGYTYMTIFSQFAILCSFYLSTWEEYHTHKLYLAEFCGPVEGIIVLCISFIAVGIYGPQTIWHTKVAQFSWQDFVFDVETVHLMYAFCTGALIFNIVTAHTNVVRYYESQSTKSATPSKTAENISKAVNGLLPFFAYFSSIFTLVLIQPSFISLALILSIGFSVAFVVGRMIIAHLTMQPFPMVNFPFLIPTIQLVLYAFMVYVLDYQKGSIVSALVWMGLGLTLAIHGMFINDIIYDITTFLDIYALSIKHPKEI