MTHFR

MTHFR is short for the enzyme called methylenetetrahydrofolate reductase. Sometimes MTHFR is also used when referring to the genes that transcribes methylenetetrahydrofolate reductase. The enzyme catalyzes the conversion of 5,10-methylenetetrahydrofolate to 5-methyltetrahydrofolate, which assists in the production of building blocks for DNA.