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. Author manuscript; available in PMC: 2010 Sep 1.
Published in final edited form as: Ann Hum Genet. 2009 Jul 28;73(Pt 5):484–491. doi: 10.1111/j.1469-1809.2009.00529.x

Figure 1.

Figure 1

Schematic representation of homocysteine/folate metabolism. CBS, cystathionine β-synthase; DHF, dihydrofolate; DHFR, dihydrofolate reductase; dTMP, deoxythymidine monophosphate; dUMP deoxyuridine monophosphate; Hcy homocysteine; MTHFD1, methylenetetrahydrofolate dehydrogenase-methenyltetrahydrofolate cyclohydrolaseformyltetrahydrofolate synthetase; MTHFR, 5,10-methylenetetrahydrofolate reductase; MTR, methionine synthase; MTRR, methionine synthase reductase; RFC1, Reduced folate carrier; SAH, S-adenosylhomocysteine; SAM, S-adenosylmethionine; SHMT, Serine hydroxymethyltransferase; THF, tetrahydrofolate; TYMS, thymidylate synthase.