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Deficit of the MHTFR function according to the genotype. From van der Put et al. 1998 [49]
| Genotype | 677CC 2 normal 677C |
677CT Heterozygous 677 T |
677 TT Homozygous 677 T |
|---|---|---|---|
| 1298AA 2 normal 1298A |
100 % | 66 %% | 25 % |
| 1298 AC Heterozygous 1298C |
83 % | 48 % | Not tested |
| 1298CC Homozygous 1298C |
61 % | Not tested | Not tested |
