One of the genes tested for in the methionine cycle is the MTR gene. Variations of this gene influences how efficiently folate is processed.


Global population distribution:

Source: 1000 Genome Project. Global averages for both sexes

MTR: AA

62%

MTR: GA

33%

MTR: GG

5%

More about MTR

MTR is an enzyme that is necessary for the conversion of homocysteine to methionine. Methionine production is important as it is crucial for ‘DNA methylation’ - the process by which our genes are turned ‘on’ and ‘off’.

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