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10 sources retrieved · Most recent: April 2026 · Index updated 15 days ago
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CACNG6
calcium voltage-gated channel auxiliary subunit gamma 6
Chromosome 19 · 19q13.42
NCBI Gene: 59285Ensembl: ENSG00000130433.8HGNC: HGNC:13625UniProt: A6NFR2
13PubMed Papers
20Diseases
10Drugs
0Pathogenic Variants
FUNCTIONAL ROLE
Ion ChannelTransporter
CLINICAL
FDA Approved Target
DATA QUALITY
✓ Experimental GO Evidence✓ Swiss-Prot Reviewed
L-type voltage-gated calcium channel complexcalcium channel regulator activityregulation of calcium ion transmembrane transport via high voltage-gated calcium channelvoltage-gated calcium channel activityepilepsyfibromyalgianeuropathic painSeizure
✦AI Summary

CACNG6 encodes calcium voltage-gated channel auxiliary subunit gamma 6, which regulates L-type calcium channels containing CACNA1C as the pore-forming subunit 1. The protein stabilizes calcium channel function and modulates calcium ion transmembrane transport critical for cellular processes. CACNG6 has been implicated in multiple disease contexts. Genetic variants in CACNG6 are associated with aspirin-intolerant asthma (AIA), with the rs192808C>T polymorphism showing significant association (OR=2.88-2.99) 1. Mendelian randomization analysis identified CACNG6 among 35 druggable genes causally linked to childhood asthma susceptibility 2. Epistatic interactions between CACNG6 and CACNG5 variants suggest biological crosstalk contributing to schizophrenia risk 3. In acute myocardial infarction, CACNG6 expression tends to be downregulated in affected blood samples 4. Recent evidence indicates CACNG6 downregulation inhibits calcium ion influx and modulates the MAPK pathway in antimicrobial responses 5. Downregulation of CACNG6 is associated with increased pain interference during chemotherapy in colorectal cancer patients 6. These findings suggest CACNG6 represents a potential therapeutic target for airway inflammatory diseases and cancer-related symptom management.

Sources cited
1
CACNG6 encodes a protein that stabilizes calcium channels; rs192808 polymorphism associates with aspirin-intolerant asthma risk
PMID: 20860846
2
CACNG6 identified as one of 35 druggable genes causally associated with childhood asthma via Mendelian randomization
PMID: 41398767
3
CACNG6 SNP rs192808 shows significant epistatic interaction with CACNG5 rs2048137, suggesting biological interaction in schizophrenia risk
PMID: 27102562
4
CACNG6 shows tendency toward downregulation in acute myocardial infarction blood samples
PMID: 27746059
5
CACNG6 downregulation inhibits calcium ion influx and modulates MAPK pathway in antimicrobial responses
PMID: 41819427
6
CACNG6 downregulation associates with increased pain interference during chemotherapy in colorectal cancer patients
PMID: 40577278
Disease Associationsⓘ20
epilepsyOpen Targets
0.61Moderate
fibromyalgiaOpen Targets
0.60Moderate
neuropathic painOpen Targets
0.60Moderate
SeizureOpen Targets
0.60Moderate
restless legs syndromeOpen Targets
0.58Moderate
neuralgiaOpen Targets
0.58Moderate
anxiety disorderOpen Targets
0.57Moderate
postherpetic neuralgiaOpen Targets
0.57Moderate
spinal cord injuryOpen Targets
0.54Moderate
Focal-onset seizureOpen Targets
0.48Moderate
cardiovascular diseaseOpen Targets
0.46Moderate
Urinary incontinenceOpen Targets
0.43Moderate
PainOpen Targets
0.42Moderate
diabetic neuropathyOpen Targets
0.41Moderate
generalized anxiety disorderOpen Targets
0.40Weak
insomniaOpen Targets
0.40Weak
partial epilepsyOpen Targets
0.39Weak
Chronic painOpen Targets
0.39Weak
Hot flashesOpen Targets
0.37Weak
chronic obstructive pulmonary diseaseOpen Targets
0.37Weak
Pathogenic Variants
No pathogenic variants reported on ClinVar for this gene.
View on ClinVar ↗
Drug Targets10
ATAGABALINPhase II
Voltage-gated calcium channel modulator
insomnia
BEPRIDILApproved
Voltage-gated calcium channel blocker
cardiovascular disease
GABAPENTINApproved
Voltage-gated calcium channel modulator
epilepsy
GABAPENTIN ENACARBILApproved
Voltage-gated calcium channel modulator
restless legs syndrome
IMAGABALINPhase III
Voltage-gated calcium channel modulator
generalized anxiety disorder
PHLOROGLUCINOLApproved
Voltage-gated calcium channel blocker
gastrointestinal disease
PREGABALINApproved
Voltage-gated calcium channel modulator
neuropathic pain
SULOCTIDILApproved
Voltage-gated calcium channel blocker
cardiovascular disease
TERODILINEApproved
Muscarinic acetylcholine receptor antagonist
Urinary incontinence
TERODILINE HYDROCHLORIDEUNKNOWN
Muscarinic acetylcholine receptor antagonist
Related Genes
CACNA2D4Protein interaction92%CACNA1CProtein interaction91%CACNA1DProtein interaction91%CACNA1FProtein interaction91%CACNA1SProtein interaction91%CACNA1HProtein interaction91%
Tissue Expression6 tissues
Lung
100%
Brain
54%
Heart
0%
Bone Marrow
0%
Ovary
0%
Liver
0%
Gene Interaction Network
Click a node to explore
CACNG6CACNA2D4CACNA1CCACNA1DCACNA1FCACNA1SCACNA1H
PROTEIN STRUCTURE
Preparing viewer…
AlphaFoldAI-predicted · UniProt Q9BXT2
View on AlphaFold ↗
Constraintⓘ
LOEUFⓘ
1.60LoF Tolerant
pLIⓘ
0.00Tolerant
Observed/Expected LoF1.12 [0.79–1.60]
RankingsWhere CACNG6 stands among ~20K protein-coding genes
  • #16,122of 20,598
    Most Researched13
  • #249of 1,025
    FDA-Approved Drug Targets7 · top quartile
  • #15,671of 17,882
    Most Constrained (LOEUF)1.60
Genes detectedCACNG6
Sources retrieved10 papers
Response time—
📄 Sources
10▼
1
Systematic druggable genome-wide mendelian randomization identifies therapeutic targets for childhood asthma.
PMID: 41398767
Medicine (Baltimore) · 2025
1.00
2
Detection of genomic variations and selection signatures in Wagyu using whole-genome sequencing data.
PMID: 37792466
Anim Genet · 2023
0.90
3
Evaluation of voltage-dependent calcium channel γ gene families identified several novel potential susceptible genes to schizophrenia.
PMID: 27102562
Sci Rep · 2016
0.80
4
Identification of Transcription Factor-Gene Regulatory Network in Acute Myocardial Infarction.
PMID: 27746059
Heart Lung Circ · 2017
0.70
5
Association of CACNG6 polymorphisms with aspirin-intolerance asthmatics in a Korean population.
PMID: 20860846
BMC Med Genet · 2010
0.60