THE PURSER WELLNESS ENCYCLOPEDIA

Let’s explore “Apolipoprotein B — lab reference”

A RELATED COURSEMethylation & B vitamins

4 chapters, at your pace

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550 resources for your curiosity39 matching listings grouped; alternative sources stay available.

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Gene referenceSep 23, 2026

APOE

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APOE encodes a protein that carries lipids between cells. The familiar APOE e2, e3 and e4 groupings depend on the combination of rs429358 and rs7412, not on either marker read in isolation. Also called: Apolipoprotein E Lipid transport and …

Gene referenceSep 23, 2026

CBS

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CBS helps move homocysteine into the pathway that supplies building blocks for glutathione. Also called: Cystathionine Beta-Synthase From homocysteine toward glutathione Dr. Purser places CBS in the sulfur-handling pathway that connects hom…

Gene referenceSep 23, 2026

COMT

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Makes an enzyme that helps break down catechol compounds, including some neurotransmitters. A common variant does not by itself explain mood, attention or stress tolerance. Also called: Catechol-O-Methyltransferase Catecholamines and sensit…

Gene referenceSep 23, 2026

CTH

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CTH helps make cysteine, one of the building blocks your body uses to make glutathione. Also called: Cystathionine Gamma-Lyase From homocysteine toward glutathione Dr. Purser places CTH in the sulfur-handling pathway that connects homocyste…

Gene referenceSep 23, 2026

GAD1

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GAD1 helps your body make GABA, a chemical messenger, from glutamate. Also called: Glutamate Decarboxylase 1 The glutamate-to-GABA connection Dr. Purser’s course uses GAD/GABA teaching to explain a connection between excitatory and inhibito…

Gene referenceSep 23, 2026

GAD2

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GAD2 helps make GABA, a chemical messenger, from glutamate. Also called: Glutamate Decarboxylase 2 Another part of the GABA system GAD2 helps make GABA from glutamate. GAD1 does a related job, but the two genes are different. Check the exac…

Gene referenceSep 23, 2026

MAOA

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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

MTRR

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…ps maintain the activity of methionine synthase, connecting B12-related chemistry with homocysteine metabolism. Also called: Methionine Synthase Reductase Keeping the remethylation system working Dr. Purser teaches MTRR alongside MTR becaus…

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