Fig. 1From: Geographical and ethnic distribution of single nucleotide polymorphisms within genes of the folate/homocysteine pathway metabolismMetabolic cycle of homocysteine, the seven enzymes carrying the functional SNPs analyzed in the study are shown in red (SAM S-Adenosyl methionine, SAH S-Adenosyl-l-homocysteine, BHMT Betaine-homocysteine S-methyltransferase, CBS Cystathionine beta synthase, FOLH1 Folate hydrolase, MTHFD1 Methylenetetrahydrofolate dehydrogenase 1, MTHFR Methylenetetrahydrofolate reductase, MTRR Methionine synthase reductase, MTR Methionine synthase, SLC19A1 Solute carrier family 19, TCN2 Transcobalamin II)Back to article page