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Gene referenceSep 23, 2026
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MAOA helps break down some chemical messengers. A gene result cannot predict a mood or behavior. Also called: MAO-A, Monoamine Oxidase A Neurotransmitter breakdown in context Dr. Purser places MAOA in the neurotransmitter-breakdown part of …

Gene referenceSep 23, 2026
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Makes the methionine synthase enzyme, which uses vitamin B12 in the conversion of homocysteine to methionine. Also called: Methionine Synthase The B12-dependent step In Dr. Purser’s teaching map, MTR is the B12-dependent step that converts …

Gene referenceSep 23, 2026
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Makes an enzyme involved in producing phosphatidylcholine, a component of cell membranes. Genetic findings alone do not establish a choline deficiency. Also called: Phosphatidylethanolamine N-Methyltransferase, choline, phosphatidylcholine …

Gene referenceSep 23, 2026
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PON1 is discussed in relation to how the body handles some compounds and protects certain fats. Also called: Paraoxonase 1 A different part of antioxidant handling PON1 appears in Dr. Purser’s redox and conversion teaching alongside GST and…

Gene referenceSep 23, 2026
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TCN2 helps carry vitamin B12 in the body. A gene result alone cannot tell you your B12 status. Also called: Transcobalamin II B12 must be carried as well as consumed TCN2 appears in Dr. Purser’s homocysteine and methylation map because it c…

Gene referenceSep 23, 2026
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Encodes the reduced folate carrier, a protein involved in transporting folates into cells. Also called: RFC1, reduced folate carrier, folate transport Folate transport is part of the story Dr. Purser’s folate map includes transport as well …

Gene referenceSep 23, 2026
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CCL3 encodes MIP-1 alpha, a chemokine involved in attracting and activating immune cells. It is related to CCL4, or MIP-1 beta, but the two genes and proteins are distinct. Also called: MIP-1 alpha and the chemokine cluster CCL3 encodes MI…

Gene referenceSep 23, 2026
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CD40LG encodes CD40 ligand, which binds CD40 and supports communication needed for effective antibody responses. It is on the X chromosome, which changes how some genetic results must be interpreted. Also called: The ligand that helps acti…

Gene referenceSep 23, 2026
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IL18 encodes interleukin-18, a cytokine that can promote interferon-gamma responses in the appropriate immune context. Its receptor includes components encoded by IL18R1 and IL18RAP. Also called: An inflammatory signal that connects to int…

Gene referenceSep 23, 2026
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IL4 encodes interleukin-4, a cytokine involved in Th2 immune responses and antibody class switching, including pathways related to IgE. It operates alongside IL-5 and IL-13 rather than representing all allergic biology by itself. Also calle…

Gene referenceSep 23, 2026
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MTHFS encodes an enzyme that converts 5-formyltetrahydrofolate into 5,10-methenyltetrahydrofolate. This places it in folate interconversion; it is not another name for MTHFR or a direct maker of methylfolate. Also called: Folinic acid has …

Gene referenceSep 23, 2026
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RAD50 encodes a DNA-repair protein. The surrounding genomic region also contains regulatory elements relevant to the nearby IL4, IL5 and IL13 cluster, so a locus association can concern more than the coding function of one gene. Also called…

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