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Gene entry

TPMT

thiopurine S-methyltransferase

Chromosome
6
Cytoband
6p22.3
Variants (rsID)
57

TPMT is a protein-coding gene, meaning the body reads it as instructions to build a protein, located on chromosome 6 (region 6p22.3). Its official name is “thiopurine S-methyltransferase”. The reference table lists 57 variants (rsID) for this gene.

Clinically classified variants

7 reference-table entries with clinical significance.

  • rs1800462Drug responsesingle nucleotide variantThiopurine methyltransferase deficiency
  • rs1800584Drug responsesingle nucleotide variantThiopurine methyltransferase deficiency
  • rs74423290Drug responsesingle nucleotide variantThiopurine methyltransferase deficiency
  • rs1142345Likely benignsingle nucleotide variantThiopurine methyltransferase deficiency
  • rs1800460Likely benignsingle nucleotide variantThiopurine methyltransferase deficiency
  • rs2842934Likely benignsingle nucleotide variant
  • rs398122996Not classifiedsingle nucleotide variant

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.