CYB5R3 cytochrome b5 reductase 3
Gene ID: 1727, updated on 7-Apr-2024Gene type: protein coding
Also known as: B5R; DIA1
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- Go to complete Gene record for CYB5R3
- Go to Variation Viewer for CYB5R3 variants
Summary
This gene encodes cytochrome b5 reductase, which includes a membrane-bound form in somatic cells (anchored in the endoplasmic reticulum, mitochondrial and other membranes) and a soluble form in erythrocytes. The membrane-bound form exists mainly on the cytoplasmic side of the endoplasmic reticulum and functions in desaturation and elongation of fatty acids, in cholesterol biosynthesis, and in drug metabolism. The erythrocyte form is located in a soluble fraction of circulating erythrocytes and is involved in methemoglobin reduction. The membrane-bound form has both membrane-binding and catalytic domains, while the soluble form has only the catalytic domain. Alternate splicing results in multiple transcript variants. Mutations in this gene cause methemoglobinemias. [provided by RefSeq, Jan 2010]
Associated conditions
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Description | Tests |
---|---|
Deficiency of cytochrome-b5 reductase | See labs |
Genomic context
- Location:
- 22q13.2
- Sequence:
- Chromosome: 22; NC_000022.11 (42617840..42649392, complement)
- Total number of exons:
- 12
Variation
Resource | Links for this gene |
---|---|
ClinVar | Variants reported to ClinVar |
dbVar | Studies and variants |
SNP | Variation Viewer for CYB5R3 variants |
Genome viewer | Explore NCBI-annotated and select non-NCBI annotated genome assemblies |
- ClinVarRelated medical variations
- dbVarLink from Gene to dbVar
- MedGenRelated information in MedGen
- OMIMLink to related OMIM entry
- PubMed (OMIM)Gene links to PubMed derived from omim_pubmed_cited links
- RefSeq RNAsLink to Nucleotide RefSeq RNAs
- RefSeqGeneLink to Nucleotide RefSeqGenes
- Variation ViewerRelated Variants
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