Table 1

Genes involved in one-carbon metabolism and their polymorphic variants investigated in relation to non-Hodgkin lymphoma, the NCI-SEER Case-Control Study, 1998-2000

GeneEnzyme/proteinLocationdbSNP ID [amino acid change]
BHMT Betaine-homocysteine methyltransferase 5q13.1-q15 rs585800 (Ex8+453A>T) 
CBS Cystathionine-beta-synthase 21q22.3 rs234706 (Ex9+33C>T)§ [Y233Y]; rs12613 (Ex18-39IG>A); rs1801181 (Ex13+41C>T) [A360A] 
FPGS Folylpolyglutamate synthase 9q34.1 rs10106 (Ex15-263T>C) 
FTHFD 10-Formyltetrahydrofolate dehydrogenase 3q21.3 rs2305230 (Ex10-40G>T) [L395L]; rs1127717 (Ex21+31A>G) [D793G] 
GGH Gamma-glutamyl hydrolase 8q12.1 rs719236 (−423G>T); rs1031552 (IVS7-3001C>T) 
MBD2 Methyl-CpG binding domain protein 2 18q21 rs7614 (Ex8+438A>G); rs603097 (−2176T>C) 
MGMT* O-6-Methylguanine-DNA methyltransferase 10q26 rs2308321 (Ex4+13A>G) [I143V]; rs2308327 (Ex4+119A>G) [K178R]; rs12917 (Ex2-25C>T) [L84F] 
MLH1 MutLhomolog 1 3p21.3 rs1799977 (Ex8-23A>G) [I219V]; rs2286940 (IVS12-169C>T) 
MSH2 MutShomolog 2 2p22-p21 rs4987188 (Ex6+23G>A)§ [G322D] 
MTHFD2 5,10-Methylenetetrahydrofolate dehydrogenase 2 2p13.1 rs1667627 (IVS1+3323T>C) 
MTHFR 5,10-Methylenetetrahydrofolate reductase 1p36.3 rs1801131 (Ex8-62A>C or 1298A>C) [E429A]; rs1801133 (Ex5+79C>T or 677C>T) [A222V] 
MTHFS 5,10-Methenyltetrahydrofolate synthetase (or 5-formyltetrahydrofolate cyclo-ligase) 15q24.3 rs622506 (IVS2-1411T>G) 
MTR 5-Methyltetrahydrofolate-homocysteine methyltransferase (or methionine synthase) 1q43 rs1805087 (Ex26-20A>G or 2756A>G)§ [D919G] 
MTRR 5-Methyltetrahydrofolate-homocysteine methyltransferase reductase (or methionine synthase reductase) 5p15.3-15.2 rs161870 (Ex5+136T>C) [L206L] 
SHMT1 Cytoplasmic serine hydroxymethyltransferase 1 17p11.2 rs1979277 (Ex12+138C>T or 1420C>T) [L435F]; rs1979276 (Ex12+236C>T) 
SLC19A1 Solute carrier family 19 (folate transporter), member 1 (or reduced folate carrier 1) 21q22.3 rs12659 (Ex4-254C>T) [P232P]; rs1051296 (Ex8-233T>G) 
TCN1 Transcobalamin11q11-q12 rs526934 (IVS1+372T>C) 
TYMS Thymidylate synthetase 18p11.32 rs699517 (Ex8+157C>T); VNTR (Ex1+52-28base 3R>2R)‡ 
GeneEnzyme/proteinLocationdbSNP ID [amino acid change]
BHMT Betaine-homocysteine methyltransferase 5q13.1-q15 rs585800 (Ex8+453A>T) 
CBS Cystathionine-beta-synthase 21q22.3 rs234706 (Ex9+33C>T)§ [Y233Y]; rs12613 (Ex18-39IG>A); rs1801181 (Ex13+41C>T) [A360A] 
FPGS Folylpolyglutamate synthase 9q34.1 rs10106 (Ex15-263T>C) 
FTHFD 10-Formyltetrahydrofolate dehydrogenase 3q21.3 rs2305230 (Ex10-40G>T) [L395L]; rs1127717 (Ex21+31A>G) [D793G] 
GGH Gamma-glutamyl hydrolase 8q12.1 rs719236 (−423G>T); rs1031552 (IVS7-3001C>T) 
MBD2 Methyl-CpG binding domain protein 2 18q21 rs7614 (Ex8+438A>G); rs603097 (−2176T>C) 
MGMT* O-6-Methylguanine-DNA methyltransferase 10q26 rs2308321 (Ex4+13A>G) [I143V]; rs2308327 (Ex4+119A>G) [K178R]; rs12917 (Ex2-25C>T) [L84F] 
MLH1 MutLhomolog 1 3p21.3 rs1799977 (Ex8-23A>G) [I219V]; rs2286940 (IVS12-169C>T) 
MSH2 MutShomolog 2 2p22-p21 rs4987188 (Ex6+23G>A)§ [G322D] 
MTHFD2 5,10-Methylenetetrahydrofolate dehydrogenase 2 2p13.1 rs1667627 (IVS1+3323T>C) 
MTHFR 5,10-Methylenetetrahydrofolate reductase 1p36.3 rs1801131 (Ex8-62A>C or 1298A>C) [E429A]; rs1801133 (Ex5+79C>T or 677C>T) [A222V] 
MTHFS 5,10-Methenyltetrahydrofolate synthetase (or 5-formyltetrahydrofolate cyclo-ligase) 15q24.3 rs622506 (IVS2-1411T>G) 
MTR 5-Methyltetrahydrofolate-homocysteine methyltransferase (or methionine synthase) 1q43 rs1805087 (Ex26-20A>G or 2756A>G)§ [D919G] 
MTRR 5-Methyltetrahydrofolate-homocysteine methyltransferase reductase (or methionine synthase reductase) 5p15.3-15.2 rs161870 (Ex5+136T>C) [L206L] 
SHMT1 Cytoplasmic serine hydroxymethyltransferase 1 17p11.2 rs1979277 (Ex12+138C>T or 1420C>T) [L435F]; rs1979276 (Ex12+236C>T) 
SLC19A1 Solute carrier family 19 (folate transporter), member 1 (or reduced folate carrier 1) 21q22.3 rs12659 (Ex4-254C>T) [P232P]; rs1051296 (Ex8-233T>G) 
TCN1 Transcobalamin11q11-q12 rs526934 (IVS1+372T>C) 
TYMS Thymidylate synthetase 18p11.32 rs699517 (Ex8+157C>T); VNTR (Ex1+52-28base 3R>2R)‡ 
*

The main effect of MGMT has been reported previously.33 

Genotyping was done in subjects with DNA from blood samples only.

Genotyping was done in all of the subjects with DNA from blood or buccal tissue samples.

§

P < .05 for deviation from Hardy-Weinberg equilibrium among controls.

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