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. Author manuscript; available in PMC: 2009 Mar 13.
Published in final edited form as: J Nutr Biochem. 2007 Jun 27;19(3):158–165. doi: 10.1016/j.jnutbio.2007.02.004

Fig. 1.

Fig. 1

Choline metabolism, phosphatidylcholine and sphingomyelin synthesis, and the role of betaine and folate in one-carbon metabolism. BHMT, betaine homocysteine S-methyltransferase; CDP-Cho, cytidinediphosphocholine; CMP, cytidinemonophosphate; CTP, cytidinetriphosphate, DAG, diacylglycerol; DMG, dimethylglycine; HCY, homocysteine; MET, methionine; MTHFR, methylenetetrahydrofolate reductase; PC, phosphocholine; PtdCho, phosphatidylcholine; PtdEth, phosphatidylethanolamine; SAH, S-adenosylhomocysteine; SAM, S-adenosylmethionine; SM, sphingomyelin; THF, tetrahydrofolate.