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Table 2 Distribution of MTHFR genotypes and allele frequencies among 1, 3-butadiene (BD) exposed workers

From: Folate metabolism modifies chromosomal damage induced by 1,3-butadiene: results from a match-up study in China and in vitro experiments

SNPs Genotypes N Rate% Frequency
MTHFR677 CC 13 28.9 C:0.53
CT 22 48.9 T:0.47
TT 10 22.2  
MTHFR1298 CC 2 4.4 C:0.22
CA 16 35.6 A:0.78
AA 27 60.0