CACNA1A - calcium voltage-gated channel subunit alpha1 A Gene
Also Known as BI; EA2; FHM; MHP; APCA; HPCA; MHP1; SCA6; DEE42; CAV2.1; EIEE42; CACNL1A4
Species: Homo sapiens
About CACNA1A
This gene has 59 transcripts (splice variants), 284 orthologues, 26 paralogues and is associated with 12 phenotypes. Biased expression in brain (RPKM 5.1), stomach (RPKM 1.8) and 6 other tissues.
Summary
Voltage-dependent calcium channels mediate the entry of calcium ions into excitable cells, and are also involved in a variety of calcium-dependent processes, including muscle contraction, hormone or neurotransmitter release, and gene expression. Calcium channels are multisubunit complexes composed of alpha-1, beta, alpha-2/delta, and gamma subunits. The channel activity is directed by the pore-forming alpha-1 subunit, whereas, the Others act as auxiliary subunits regulating this activity. The distinctive properties of the Calcium Channel types are related primarily to the expression of a variety of alpha-1 isoforms, alpha-1A, B, C, D, E, and S. This gene encodes the alpha-1A subunit, which is predominantly expressed in neuronal tissue. Mutations in this gene are associated with 2 neurologic disorders, familial hemiplegic migraine and episodic ataxia 2. This gene also exhibits polymorphic variation due to (CAG)n-repeats. Multiple transcript variants encoding different isoforms have been found for this gene. In one set of transcript variants, the (CAG)n-repeats occur in the 3' UTR, and are not associated with any disease. But in another set of variants, an insertion extends the coding region to include the (CAG)n-repeats which encode a polyglutamine tract. Expansion of the (CAG)n-repeats from the normal 4-18 to 21-33 in the coding region is associated with spinocerebellar ataxia 6. [provided by RefSeq, Jul 2016]
CACNA1A Products (5)
| mRNA | Protein | Name |
|---|---|---|
| NM_000068.4 | NP_000059.3 | voltage-dependent P/Q-type calcium channel subunit alpha-1A isoform 1 |
| NM_001127221.2 | NP_001120693.1 | voltage-dependent P/Q-type calcium channel subunit alpha-1A isoform 3 |
| NM_001127222.2 | NP_001120694.1 | voltage-dependent P/Q-type calcium channel subunit alpha-1A isoform 4 |
| NM_001174080.2 | NP_001167551.1 | voltage-dependent P/Q-type calcium channel subunit alpha-1A isoform 5 |
| NM_023035.3 | NP_075461.2 | voltage-dependent P/Q-type calcium channel subunit alpha-1A isoform 2 |
| Molecular Function GO Annotation | Evidence | Références | Source |
|---|---|---|---|
| enables high voltage-gated calcium channel activity |
IDA
IDA: Inferred from direct assay
|
21883149 | GOA |
| enables high voltage-gated calcium channel activity |
IMP
IMP: Inferred from mutant phenotype
|
23376566 | GOA |
| enables protein binding |
IPI
IPI: Inferred from physical interaction
|
8692999 | GOA |
| enables syntaxin binding |
IDA
IDA: Inferred from direct assay
|
8692999 | GOA |
| enables voltage-gated calcium channel activity |
IDA
IDA: Inferred from direct assay
|
10753886 | GOA |
| enables voltage-gated calcium channel activity |
IGI
IGI: Inferred from genetic interaction
|
21883149 | GOA |
| Biological Process GO Annotation | Evidence | Références | Source |
|---|---|---|---|
| involved in calcium ion transmembrane transport |
IDA
IDA: Inferred from direct assay
|
24836863 | GOA |
| involved in cellular response to amyloid-beta |
IDA
IDA: Inferred from direct assay
|
21883149 | GOA |
| involved in cellular response to amyloid-beta |
IGI
IGI: Inferred from genetic interaction
|
21883149 | GOA |
| involved in modulation of chemical synaptic transmission |
IDA
IDA: Inferred from direct assay
|
23376566 | GOA |
| involved in positive regulation of cytosolic calcium ion concentration |
IDA
IDA: Inferred from direct assay
|
10753886 | GOA |
| involved in response to amyloid-beta |
IDA
IDA: Inferred from direct assay
|
18216187 | GOA |
| Cellular Component GO Annotation | Evidence | Références | Source |
|---|---|---|---|
| located in cell projection |
IDA
IDA: Inferred from direct assay
|
16595610 | GOA |
| located in cytoplasm |
IDA
IDA: Inferred from direct assay
|
16595610 | GOA |
| located in nucleus |
IDA
IDA: Inferred from direct assay
|
16595610 | GOA |
| located in plasma membrane |
IDA
IDA: Inferred from direct assay
|
16595610 | GOA |
CACNA1A Protein Structure
Ion_trans: Ion transport protein (139 - 358)
Ion_trans: Ion transport protein (520 - 711)
Ion_trans: Ion transport protein (1278 - 1509)
Ion_trans: Ion transport protein (1599 - 1809)
Ca_chan_IQ: Voltage gated calcium channel IQ domain (1948 - 1980)
- 0
- 400
- 800
- 1200
- 1600
- 2000
- 2400
- 2506 a.a.
| Protein Preferred Names | Protein Names | |
|---|---|---|
|
voltage-dependent P/Q-type calcium channel subunit alpha-1A |
|
CACNA1A Protein-protein interaction Information
|
Type
|
Protein Name | Protein ID | Interactor | Interactor Species | Interactor ID | Detection Method | Références |
|---|---|---|---|---|---|---|---|
|
Intra
|
CACNA1A | O00555 | UQCRC2 | Homo sapiens | P22695 | 21078624 | |
|
Intra
|
CACNA1A | O00555 | ADGRL1 | Homo sapiens | O94910 | 21078624 | |
|
Intra
|
CACNA1A | O00555 | ADGRL1 | Homo sapiens | O94910 | 21078624 | |
|
Intra
|
CACNA1A | O00555 | CSNK2B | Homo sapiens | P67870 | 21078624 | |
|
Intra
|
CACNA1A | O00555 | CSNK2B | Homo sapiens | P67870 | 21078624 | |
|
Intra
|
CACNA1A | O00555 | ABI1 | Homo sapiens | Q8IZP0 | 21078624 | |
|
Intra
|
CACNA1A | O00555 | ABI1 | Homo sapiens | Q8IZP0 | 21078624 | |
|
Intra
|
CACNA1A | O00555 | AMIGO2 | Homo sapiens | Q86SJ2 | 21078624 | |
|
Intra
|
CACNA1A | O00555 | ARHGAP22 | Homo sapiens | Q7Z5H3 | 21078624 | |
|
Intra
|
CACNA1A | O00555 | ARHGAP22 | Homo sapiens | Q7Z5H3 | 21078624 | |
|
Intra
|
CACNA1A | O00555 | DNAJB5 | Homo sapiens | O75953 | 21078624 | |
|
Intra
|
CACNA1A | O00555 | TSPOAP1 | Homo sapiens | O95153 | 21078624 | |
|
Intra
|
CACNA1A | O00555 | YLPM1 | Homo sapiens | P49750 | 21078624 | |
|
Intra
|
CACNA1A | O00555 | HIVEP1 | Homo sapiens | P15822 | 21078624 | |
|
Intra
|
CACNA1A | O00555 | HIVEP1 | Homo sapiens | P15822 | 21078624 | |
|
Intra
|
CACNA1A | O00555 | MEGF8 | Homo sapiens | Q7Z7M0 | 21078624 | |
|
Intra
|
CACNA1A | O00555 | MEGF8 | Homo sapiens | Q7Z7M0 | 21078624 | |
|
Intra
|
CACNA1A | O00555 | LTBP4 | Homo sapiens | Q8N2S1 | 21078624 | |
|
Intra
|
CACNA1A | O00555 | MATN2 | Homo sapiens | O00339 | 21078624 |
Related Diseases
| Diseases | Alias | |
|---|---|---|
| Spinocerebellar Ataxia 6 |
|
|
| Episodic Ataxia, Type 2 |
|
|
| Migraine, Familial Hemiplegic, 1 |
|
|
| Developmental And Epileptic Encephalopathy 42 |
|
|
| Sporadic Hemiplegic Migraine |
|
|
| Benign Paroxysmal Torticollis Of Infancy |
|
|
| Developmental And Epileptic Encephalopathy 52 |
|
|
| Familial Or Sporadic Hemiplegic Migraine |
|
|
| Aceruloplasminemia |
|
|
| Disorder Of Sexual Development |
|
|
| Lennox-Gastaut Syndrome |
|
|
| Nervous System Disease |
|
|
| Non-Specific Early-Onset Epileptic Encephalopathy |
|
|
| Congenital Nervous System Abnormality |
|
|
| Familial Hemiplegic Migraine |
|
|
| Alternating Hemiplegia Of Childhood |
|
|
| Dentatorubral-Pallidoluysian Atrophy |
|
|
| Episodic Ataxia |
|
|
| Autosomal Dominant Cerebellar Ataxia |
|
|
| Episodic Ataxia, Type 1 |
|
|
| Migraine With Aura |
|
|
| Migraine With Or Without Aura 1 |
|
|
| Spastic Paraparesis |
|
|
| Autosomal Dominant Cerebellar Ataxia Type Iii |
|
|
| Machado-Joseph Disease |
|
|
| Cluster Headache |
|
|
| Cerebellar Disease |
|
|
| Cerebellar Degeneration |
|
|
| Hemiplegia |
|
|
| Primary Cerebellar Degeneration |
|
|
| Headache |
|
|
| Strabismus |
|
|
| Migraine Without Aura |
|
|
| Cerebral Palsy |
|
|
| Hereditary Ataxia |
|
|
| Migraine, Familial Hemiplegic, 2 |
|
|
| Friedreich Ataxia |
|
|
| Central Nervous System Origin Vertigo |
|
|
| Spinocerebellar Ataxia 12 |
|
|
| Spinocerebellar Ataxia 1 |
|
|
| Trigeminal Neuralgia |
|
|
| Spinocerebellar Ataxia 17 |
|
|
| Developmental And Epileptic Encephalopathy |
|
|
| Torticollis |
|
|
| Migraine, Familial Hemiplegic, 3 |
|
|
| Exfoliation Syndrome |
|
|
| Episodic Ataxia, Type 6 |
|
|
| Childhood Absence Epilepsy |
|
|
| Vestibular Nystagmus |
|
|
| Spinocerebellar Ataxia 14 |
|
|
| Episodic Ataxia, Type 5 |
|
|
| Spinocerebellar Ataxia, Autosomal Recessive 4 |
|
|
| Dystonia 12 |
|
|
| Spinocerebellar Ataxia 27 |
|
|
| Episodic Ataxia, Type 7 |
|
|
| Lambert-Eaton Myasthenic Syndrome |
|
|
| Spinocerebellar Ataxia 2 |
|
|
| Spinocerebellar Ataxia 31 |
|
|
| Paraneoplastic Cerebellar Degeneration |
|
|
| Episodic Ataxia, Type 3 |
|
|
| Inner Ear Disease |
|
|
| Olivopontocerebellar Atrophy |
|
|
| Vertigo, Benign Recurrent |
|
|
| Status Epilepticus |
|
|
| Epilepsy |
|
|
| Restless Legs Syndrome |
|
|
| Sotos Syndrome 2 |
|
|
| Spinal And Bulbar Muscular Atrophy, X-Linked 1 |
|
|
| Cowden Syndrome 5 |
|
|
| Episodic Ataxia, Type 4 |
|
|
| Marshall-Smith Syndrome |
|
|
| Ocular Motility Disease |
|
|
| Epilepsy, Idiopathic Generalized |
|
|
| Spinocerebellar Ataxia 18 |
|
|
| Developmental And Epileptic Encephalopathy 94 |
|
|
| Childhood Electroclinical Syndrome |
|
|
| Developmental And Epileptic Encephalopathy 47 |
|
|
| Cerebellar Ataxia Type 48 |
|
|
| Dystonia |
|
|
| Brain Small Vessel Disease 1 |
|
|
| Kearns-Sayre Syndrome |
|
|
| Hemidystonia |
|
|
| Vestibulocochlear Nerve Disease |
|
|
| Vestibular Neuronitis |
|
|
| Internuclear Ophthalmoplegia |
|
|
| Autosomal Recessive Cerebellar Ataxia |
|
|
| Ataxia, Early-Onset, With Oculomotor Apraxia And Hypoalbuminemia |
|
|
| Developmental And Epileptic Encephalopathy 21 |
|
|
| Benign Familial Infantile Epilepsy |
|
|
| Timothy Syndrome |
|
|
| Spinocerebellar Ataxia, Autosomal Recessive 8 |
|
|
| Episodic Ataxia, Type 8 |
|
|
| Phacogenic Glaucoma |
|
|
| Focal Dystonia |
|
|
| Peripheral Vertigo |
|
|
| Spinocerebellar Ataxia, Autosomal Recessive 14 |
|
|
| Adolescence-Adult Electroclinical Syndrome |
|
|
| Familial Periodic Paralysis |
|
|
| Familial Adult Myoclonic Epilepsy |
|
|
| Photosensitive Epilepsy |
|
|
| Spinocerebellar Ataxia 40 |
|
|
| Huntington Disease-Like 2 |
|
|
| Paroxysmal Extreme Pain Disorder |
|
|
| Multiple System Atrophy 1 |
|
|
| Hypokalemic Periodic Paralysis, Type 1 |
|
|
| Neonatal Period Electroclinical Syndrome |
|
|
| Spinocerebellar Ataxia 38 |
|
|
| Fleck Retina, Familial Benign |
|
|
| Spinocerebellar Ataxia, Autosomal Recessive, With Axonal Neuropathy 2 |
|
|
| Retinal Arteries, Tortuosity Of |
|
|
| Spinocerebellar Ataxia, Autosomal Recessive 17 |
|
|
| Epilepsy, Myoclonic Juvenile |
|
|
| Huntington Disease |
|
|
| Choreatic Disease |
|
|
| Dravet Syndrome |
|
|
| Cerebral Arteriopathy, Autosomal Dominant, With Subcortical Infarcts And Leukoencephalopathy, Type 2 |
|
|
| Generalized Epilepsy With Febrile Seizures Plus |
|
|
| Intellectual Developmental Disorder, X-Linked, Syndromic, Billuart Type |
|
|
| Movement Disease |
|
|
| Autism |
|
|
| Fragile X-Associated Tremor/Ataxia Syndrome |
|
|
| Early Myoclonic Encephalopathy |
|
|
| Schizophrenia |
|
|
| Early Infantile Epileptic Encephalopathy |
|
|
| Spinocerebellar Ataxia 8 |
|
|
| Spinal Muscular Atrophy |
|
|
| Hyperekplexia |
|
|
| Progressive Myoclonus Epilepsy |
|
|
| West Syndrome |
|
|
| Spastic Ataxia |
|
|
| Parkinson Disease, Late-Onset |
|
|
| Benign Epilepsy With Centrotemporal Spikes |
|
|
| Congenital Myasthenic Syndrome |
|
|
| Patent Foramen Ovale |
|
|
| Congenital Stationary Night Blindness |
|
|
| Brugada Syndrome |
|
|
| Neuromuscular Disease |
|
|
| Hereditary Spastic Paraplegia |
|
|
| Peripheral Nervous System Disease |
|
|
| Amyotrophic Lateral Sclerosis 1 |
|
|
| Retinitis Pigmentosa |
|
|
Orthologs Information
| Species | Symbol | Source | ID |
|---|---|---|---|
| Bos taurus | CACNA1A | VGNC | VGNC:26672 |
| Felis catus | CACNA1A | VGNC | VGNC:60293 |
| Macaca mulatta | CACNA1A | VGNC | VGNC:70498 |
| Rattus norvegicus | CACNA1A | RGD | RGD:2244 |
| Mus musculus | CACNA1A | MGD | MGI:109482 |
| Canis familiaris | CACNA1A | VGNC | VGNC:38631 |
| Others | CACNA1A | NCBI |