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Methylation cycle

MTR/MTRR Remethylation Terrain

B12-dependent remethylation context and methylation-cycle uncertainty.

Evidence quality visible
No dosing or treatment advice
Terrain context linked

What The Enzyme Does

MTR and MTRR are represented as a review-required remethylation node pair. The page frames their role as pathway context for methionine-cycle continuity, not a clinical interpretation surface.

Gene
Methionine synthase and methionine synthase reductase
External IDs
MetaboliQ:condition:mtr-mtrr

What The Variants Change

MTR and MTRR variants are listed as Phase 2 content targets, but no curated genotype control is exposed until variant records and reviewer signoff exist.

No curated variant control is exposed for MTR/MTRR in Phase 1A.

Downstream Consequences

  • Remethylation context is modeled qualitatively as pathway continuity pressure.
  • B12-related interpretation remains an evidence-review topic rather than a supplement or protocol recommendation.
  • Current content does not infer homocysteine values, methylation status, or clinical action.

Cross-System Connections

Approved seed-graph edges for MTR/MTRR are pending curation. This page keeps pathway context visible without inventing factor links.

Connected pools: pending approved graph-edge curation