Gene Overview:
The TCN2 gene provides instructions for producing transcobalamin, a protein essential for transporting vitamin B12 (cobalamin) from the bloodstream into cells. Vitamin B12 is critical for DNA synthesis, fatty acid metabolism, energy production, and the formation of new blood cells.
Key Mutation:
- 776 C>G
- Impact Allele: G allele
What It Means for You:
- G allele (negative):
- Associated with lower TCN2 protein levels, resulting in reduced vitamin B12 transport into cells.
- Intracellular vitamin B12 deficiency can lead to elevated homocysteine levels, a risk factor for cardiovascular diseases.
- Implicated in Crohn’s disease and neuropathy due to insufficient intracellular vitamin B12 availability.
Next Steps:
- Consult Your Genomics Specialist or Doctor: Evaluate vitamin B12 levels and discuss potential supplementation.
- Monitor Homocysteine Levels: Elevated levels may indicate the need for further intervention.
- Dietary Adjustments: Ensure adequate intake of vitamin B12-rich foods, such as meat, eggs, and shellfish, and consider supplementation if necessary.