Gene
CACNA1F
calcium voltage-gated channel subunit alpha1 F
- HGNC 1393↗(opens in a new tab)
- Ensembl gene ENSG00000102001↗(opens in a new tab)
- NCBI Gene 778↗(opens in a new tab)
Summary
- Cytogenetic location
- Xp11.23
- Coordinates
- Chromosome X: 49,205,063–49,233,340 (GRCh38)
- Exons
- 48 exons across 28.3 kb
- Protein
- 1,966 amino acids
- Also known as
- Cav1.4, JM8, JMC8, CSNBX2, CORDX3, CSNB2A, OA2
- Previous symbols
- CSNB2, AIED
- MANE Select transcript
- ENST00000323022.10NM_001256789.3
- Locus type
- gene with protein product
- Very high
- Confident
- Low
- Very low
Reference genomeGRCh38hg38
Positions on gene and variant pages follow this choice, in this browser.
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Get my Genome TestCurated report relevant to this gene
Congenital Stationary Night Blindness
A group of mostly non-progressive retinal conditions, including Oguchi disease, caused by changes in genes such as NYX, CACNA1F, TRPM1, GRM6, GPR179 and SAG, often with nystagmus or short-sightedness.
- 1 GenCC submitter rates it definitive or strong
What knowing changes
A genetic diagnosis explains the symptoms, helps distinguish the condition from progressive retinal diseases and informs family counselling.
How CACNA1F is laid out
- Coding sequence
- Untranslated region
- Intron
- Direction of transcription
- Known disease-causing sites
- Stretches short reads find hard
Exons of the gene's MANE Select transcript (release v1.5), from NCBI and EMBL-EBI, on the GRCh38 reference genome.
Chromosome bands from UCSC's GRCh38 ideogram (2022-10-29).
Nearby genes from Ensembl release 116, on GRCh38.
Exons make up 6 kb of the gene's 28.3 kb; 5,901 of those bases code for the protein.
How a genome test reads CACNA1F
45
positions in CACNA1F where ClinVar classes a change as pathogenic or likely pathogenic
None of them falls in a region short reads find hard.
A whole genome covers all 28.3 kb of CACNA1F, introns included, not only the 6 kb of exons.
Genes linked to the same conditions
- CABP4calcium binding protein 4Shares 1 condition
- GNAT1G protein subunit alpha transducin 1Shares 1 condition
- GNB3G protein subunit beta 3Shares 1 condition
- GPR179G protein-coupled receptor 179Shares 1 condition
- GRK1G protein-coupled receptor kinase 1Shares 1 condition
- GRM6glutamate metabotropic receptor 6Shares 1 condition
- GUCY2Dguanylate cyclase 2D, retinalShares 1 condition
- LRIT3leucine rich repeat, Ig-like and transmembrane domains 3Shares 1 condition
- NYXnyctalopinShares 1 condition
- PDE6Bphosphodiesterase 6BShares 1 condition
- RHOrhodopsinShares 1 condition
- RIMS2regulating synaptic membrane exocytosis 2Shares 1 condition
Traits linked to CACNA1F
The Human Phenotype Ontology lists these as features of the rare conditions CACNA1F can cause. Each trait's page lists the other genes linked to it.
Abnormality of the eye
- Astigmatism
- Close sighted
- Decreased clarity of vision
- ERG: Reduced dark-adapted b-wave amplitude
- Fundus hypopigmentation
- Hypoplasia of the fovea
- Marked vision impairment
- Red-blind
Show 24 more traits
- Abnormal color vision
- Abnormal electroretinogram
- Abnormal retinal pigmentation
- Difficulties with night vision
- Difficulty adjusting from light to dark
- Extreme sensitivity of the eyes to light
- Involuntary, rapid, rhythmic eye movements
- Abnormal full-field electroretinogram
- Blind spot located at fixation point
- Color blindness
- Optic disc pallor
- Progressive loss of vision
- Retinal atrophy
- Spicular pigmentation of the retina
- Absent foveal reflex
- Metamorphopsia
- Outward facing eye ball
- Retinal detachment
- Visual impairment
- Abnormal amplitude of light-adapted flicker electroretinogram
- Abnormal light- and dark-adapted electroretinogram
- Abnormal macular pigmentation
- Cone/cone-rod dystrophy
- Night blindness since birth
External links
Gene records
Transcript
Protein
Where this comes from
- HGNC: the gene's symbol, name, other symbols and location.
- MANE Select v1.5, from NCBI and EMBL-EBI: the transcript, its exons and coding sequence.
- GenCC and ClinGen, released 2026-10-16: which conditions the gene is linked to, and how strongly.
- The ACMG secondary findings list, SF v3.2.
- ClinVar and the GIAB stratifications: known disease-causing sites, and the regions short reads find hard.
- The Human Phenotype Ontology, release 2026-09-01: the traits linked to the gene. Find out more at hpo.jax.org.
- Data release 2026.10.16-c6eea6bf.
Cite this page
Dante Labs. (n.d.). CACNA1F gene: calcium voltage-gated channel subunit alpha1 F. Retrieved 17 October 2026, from https://dantelabs.com/genes/cacna1f
Dante Labs. CACNA1F gene: calcium voltage-gated channel subunit alpha1 F [Internet]. [cited 17 October 2026]. Available from: https://dantelabs.com/genes/cacna1f
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