Another genetic variant we test for in the methionine cycle is in the MTRR gene. Variations of this gene influences the maintenance of homocysteine levels.


Global population distribution:

Source: 1000 Genome Project. Global averages for both sexes

MTRR: AA

43%

MTRR: GA

41%

MTRR: GG

16%

More about MTRR

MTRR is an enzyme that is necessary for the activation of the MTR enzyme, therefore it is also important in the maintenance of low levels of homocysteine.

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