BRS2(PM5) - Transsulfuration Pathway
1. Definition
Diversion of homocysteine toward cysteine production through transsulfuration.
2. Intervention Breakdown
Food-State Dominant
3. Functional Role
↑ cysteine generation
4. Mechanistic Basis
Summary
Diversion of homocysteine toward cysteine production through transsulfuration.
Transsulfuration Pathway — mechanistic detail
(Transsulfuration Pathway)
Diversion of homocysteine toward cysteine production through transsulfuration. Bridge from methylation to antioxidant defense
Dietary levers include poultry/eggs/legumes.
5. Underlying Mechanisms and Requirements
5.1 Co-factors
- B6
5.2 KCs (Key Constraints)
5.3 Cross-BRS Links
- None listed
6. Dietary Levers
Diet
- Sulfur amino acids ← poultry, eggs, legumes
7. Lifestyle Levers
Lifestyle
- Consistent daily meal timing may support one-carbon and methyl-donor availability across the day.
- Sleep and stress context may indirectly affect methylation demand; lifestyle factors are secondary to dietary substrate supply for this PM.
8. Scoreable Inputs & Modulation Signals
Scoreable Input Categories
| Input Category | Example Inputs | PM relevance |
|---|---|---|
| Functional Property Potentials | methyl_donor_pattern; sulfur_amino_acid_context; choline_rich_food_matrix | May support transsulfuration pathway. |
| Realised Functional States | consistent_daily_methyl_donor_coverage | May reflect meal-level pathway support. |
| Substance / Nutrient Signals | sulfur amino acids | Direct input signals for this PM. |
| Preparation Transformations | minimally_processed; whole_food_matrix | May preserve nutrient density for pathway support. |