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Target intelligence / Profile preview
Homocysteine Methylation Pathway Enzymes (HMP Enzymes)
- Target
- HMP Enzymes
- Molecular classification
- Enzyme
01
Overview
The homocysteine methylation pathway consists of a set of enzymes responsible for the remethylation of homocysteine to methionine, a critical process in one-carbon metabolism. This pathway is essential for maintaining cellular methylation reactions and regulating homocysteine levels, which are linked to cardiovascular and neurological health. Key enzymes include Methionine Synthase (MS), Betaine-Homocysteine Methyltransferase (BHMT), and Methylenetetrahydrofolate Reductase (MTHFR). Dysregulation of this pathway can lead to elevated plasma homocysteine, associated with increased risk of vascular disease and other pathologies.
- Other names
- Homocysteine Remethylation EnzymesMethionine Synthesis Pathway EnzymesOne-Carbon Metabolism Enzymes (related)
02
Mechanism of action
Enzymatic catalysis in homocysteine remethylation, cofactor supplementation to enhance enzyme activity, substrate provision for enzymatic reactions
03
Biological functions
One-carbon metabolismHomocysteine remethylationMethionine synthesisMethyl group donationRegulation of homocysteine levels
04
Disease associations
Cardiovascular diseaseNeurodegenerative diseaseHyperhomocysteinemiaNeural tube defectsCancer (indirectly, through methylation patterns)
05
Safety considerations
HyperhomocysteinemiaAdverse effects of high-dose B vitamin supplementation (rare)Potential interactions with other medications
06
Interacting drugs
Folic acid
3 more in the full profile.
07
Biomarkers
Plasma homocysteine levelsMTHFR genotypeVitamin B12 levelsFolate levelsSAM levelsBetaine levels
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