CACNA1B - calcium voltage-gated channel subunit alpha1 B Gene
Also Known as BIII; CACNN; DYT23; Cav2.2; NEDNEH; CACNL1A5
Species: Homo sapiens
About CACNA1B
This gene has 5 transcripts (splice variants), 289 orthologues, 26 paralogues and is associated with 3 phenotypes. Biased expression in brain (RPKM 4.9), testis (RPKM 2.2) and 1 other tissue.
Summary
The protein encoded by this gene is the pore-forming subunit of an N-type voltage-dependent Calcium Channel, which controls neurotransmitter release from neurons. The encoded protein forms a complex with alpha-2, beta, and delta subunits to form the high-voltage activated channel. This channel is sensitive to omega-conotoxin-GVIA and omega-agatoxin-IIIA but insensitive to dihydropyridines. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Aug 2011]
CACNA1B Products (2)
| mRNA | Protein | Name |
|---|---|---|
| NM_000718.4 | NP_000709.1 | voltage-dependent N-type calcium channel subunit alpha-1B isoform 1 |
| NM_001243812.2 | NP_001230741.1 | voltage-dependent N-type calcium channel subunit alpha-1B isoform 2 |
| Molecular Function GO Annotation | Evidence | Verweise | Source |
|---|---|---|---|
| enables high voltage-gated calcium channel activity |
IMP
IMP: Inferred from mutant phenotype
|
23376566 | GOA |
| enables protein binding |
IPI
IPI: Inferred from physical interaction
|
11438518 | GOA |
| enables voltage-gated calcium channel activity |
IDA
IDA: Inferred from direct assay
|
1321501 | GOA |
| enables voltage-gated calcium channel activity |
IMP
IMP: Inferred from mutant phenotype
|
25296916 | GOA |
| Biological Process GO Annotation | Evidence | Verweise | Source |
|---|---|---|---|
| involved in modulation of chemical synaptic transmission |
IDA
IDA: Inferred from direct assay
|
23376566 | GOA |
| involved in response to amyloid-beta |
IDA
IDA: Inferred from direct assay
|
23376566 | GOA |
CACNA1B Protein Structure
Ion_trans: Ion transport protein (136 - 354)
Ion_trans: Ion transport protein (517 - 707)
Ion_trans: Ion transport protein (1185 - 1415)
Ion_trans: Ion transport protein (1505 - 1707)
Ca_chan_IQ: Voltage gated calcium channel IQ domain (1847 - 1877)
- 0
- 400
- 800
- 1200
- 1600
- 2000
- 2339 a.a.
| Protein Preferred Names | Protein Names | |
|---|---|---|
|
voltage-dependent N-type calcium channel subunit alpha-1B |
|
Related Diseases
| Diseases | Alias | |
|---|---|---|
| Neurodevelopmental Disorder With Seizures And Nonepileptic Hyperkinetic Movements |
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| Non-Specific Early-Onset Epileptic Encephalopathy |
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| Lambert-Eaton Myasthenic Syndrome |
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| Dystonia 23 |
|
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| Dystonia |
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| Episodic Ataxia, Type 2 |
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| Familial Hemiplegic Migraine |
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| Spinocerebellar Ataxia 6 |
|
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| Alternating Exotropia |
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| Fleck Retina, Familial Benign |
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| Paroxysmal Extreme Pain Disorder |
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| Kleefstra Syndrome 1 |
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| Episodic Ataxia |
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| Kleefstra Syndrome |
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| Timothy Syndrome |
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| Erythromelalgia |
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| Pseudohypoaldosteronism, Type I, Autosomal Recessive |
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| Pain Agnosia |
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| Agnosia |
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| Migraine With Aura |
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| Bipolar Disorder |
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| Dystonia 11, Myoclonic |
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| Childhood Absence Epilepsy |
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| Migraine With Or Without Aura 1 |
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| Schizophrenia |
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| Microcephaly |
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| West Syndrome |
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Orthologs Information
| Species | Symbol | Source | ID |
|---|---|---|---|
| Mus musculus | CACNA1B | MGD | MGI:88296 |
| Bos taurus | CACNA1B | VGNC | VGNC:26673 |
| Canis familiaris | CACNA1B | VGNC | VGNC:38632 |
| Macaca mulatta | CACNA1B | VGNC | VGNC:70499 |
| Rattus norvegicus | CACNA1B | RGD | RGD:628852 |
| Others | CACNA1B | NCBI |