MTR

Metabolic System · Vitamin, Cofactor & One-Carbon Metabolism

How does the body recycle homocysteine into methionine?

MTR makes methionine synthase, the enzyme that carries out that conversion. The resulting methionine supports protein production and other essential chemical processes.

Common Gene Name
5-methyltetrahydrofolate-homocysteine methyltransferase
NCBI Gene ID
4548
Chromosome
1

Clinical Evidence Status

Established disease relationship

These labels describe available evidence about a gene. They do not classify your variant or recommend a treatment.

Answer Sources

Explore supporting evidence (2 records)
Condition or drugEvidenceGrade / statusContextSource
methylcobalamin deficiency type cblGClinGen gene-disease validityDefinitiveAutosomal recessiveView source
2021-07-02
HomocystinuriaMedlinePlus related conditionAssociation type varies; no grade assigned hereView source
2011-07

Source snapshot: 2026-09-09. Consumer text updated: 2026-09-10. Source dates describe the cited records, not a new clinical review.

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