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Gene entry

CYB5R3

cytochrome b5 reductase 3

Chromosome
22
Cytoband
22q13.2
Variants (rsID)
26

CYB5R3 is a protein-coding gene, meaning the body reads it as instructions to build a protein, located on chromosome 22 (region 22q13.2). Its official name is “cytochrome b5 reductase 3”. The reference table lists 26 variants (rsID) for this gene.

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Clinically classified variants

6 reference-table entries with clinical significance.

  • rs1800457Benignsingle nucleotide variantNADH-CYTOCHROME b5 REDUCTASE POLYMORPHISM
  • rs121965006Pathogenicsingle nucleotide variantMethemoglobinemia type 2
  • rs121965007Pathogenicsingle nucleotide variantMethemoglobinemia, type I
  • rs121965008Pathogenicsingle nucleotide variantMethemoglobinemia, type I
  • rs121965018Pathogenicsingle nucleotide variantMethemoglobinemia, type I
  • rs121965009Uncertain significancesingle nucleotide variantMethemoglobinemia, type I

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.