MTHFR C677T Mutation
What Does That Actually Mean? C677T or rs1801133 is a genetic variation—a single nucleotide polymorphism (SNP)—in the MTHFR gene. You get one copy of this gene from your mother and one from your father, so there are two possible copies that can be either “normal” or “mutant” If you inherited one good copy and one bad copy that’s called “heterozygous C677T” If you inherited two bad copies (one from each parent) that’s called “homozygous C677T” C…T stand for the bases that you actually have. C = cytosine, T = thymine. Bases are essentially the letters that spell out your genetic code. There are four of them commonly (C, T, A and G). When this gene is “normal” it looks like MTHFR...