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Gene entry

MTHFD1

methylenetetrahydrofolate dehydrogenase, cyclohydrolase and formyltetrahydrofolate synthetase 1

Chromosome
14
Cytoband
14q23.3
Variants (rsID)
16

MTHFD1 is a protein-coding gene, meaning the body reads it as instructions to build a protein, located on chromosome 14 (region 14q23.3). Its official name is “methylenetetrahydrofolate dehydrogenase, cyclohydrolase and formyltetrahydrofolate synthetase 1”. The reference table lists 16 variants (rsID) for this gene.

Clinically classified variants

2 reference-table entries with clinical significance.

  • rs1950902Benignsingle nucleotide variantCombined immunodeficiency and megaloblastic anemia with or without hyperhomocysteinemia
  • rs2236225Benignsingle nucleotide variantNeural tube defects, folate-sensitive, susceptibility to|Combined immunodeficiency and megaloblastic anemia with or without hyperhomocysteinemia

Other listed variants

Public references

Data from the institutional reference table and public NCBI annotation. For education only; not a substitute for medical or genetic counselling.