Brain & Mental Health Brain & Mental HealthDRD2DRD2 is the major dopamine receptor in the brain. Brain & Mental HealthDOCK7DOCK7 is a protein which is important in the formation and maintenance of neurons. Brain & Mental HealthCOMTCOMT is an enzyme which inactivates important neurotransmitters such as dopamine and epinephrine. Brain & Mental HealthAKT1AKT1 is an enzyme which is responsible for ensuring the survival of neurons. Brain & Mental HealthMAOAMAOA is an enzyme involved in the processing of neurotransmitters, it is sometimes called the "warrior" gene due to proposed links with aggression. Brain & Mental HealthMAOBMAOB is an enzyme involved in the processing of neurotransmitters, it's importance relative to MAOA is under debate. LongevityCYP24A1CYP24A1 is an enzyme which converts the active form of vitamin D3 into an inactive form. Heart HealthMTHFRMTHFR is an involved in the conversion of dietary folate into a variety of key products.