CACNB2 - calcium voltage-gated channel auxiliary subunit beta 2 Gene
Also Known as CAB2; MYSB; CAVB2; CACNLB2
Species: Homo sapiens
About CACNB2
This gene has 26 transcripts (splice variants), 199 orthologues, 3 paralogues and is associated with 2 phenotypes. Ubiquitous expression in brain (RPKM 4.0), adrenal (RPKM 2.4) and 25 other tissues.
Summary
This gene encodes a subunit of a voltage-dependent Calcium Channel protein that is a member of the voltage-gated Calcium Channel superfamily. The gene product was originally identified as an antigen target in Lambert-Eaton myasthenic syndrome, an autoimmune disorder. Mutations in this gene are associated with Brugada syndrome. Alternatively spliced variants encoding different isoforms have been described. [provided by RefSeq, Feb 2013]
CACNB2 Products (11)
| mRNA | Protein | Name |
|---|---|---|
| NM_000724.4 | NP_000715.2 | voltage-dependent L-type calcium channel subunit beta-2 isoform 1 |
| NM_001167945.2 | NP_001161417.1 | voltage-dependent L-type calcium channel subunit beta-2 isoform 9 |
| NM_001330060.2 | NP_001316989.1 | voltage-dependent L-type calcium channel subunit beta-2 isoform 10 |
| NM_001410882.1 | NP_001397811.1 | voltage-dependent L-type calcium channel subunit beta-2 isoform 11 |
| NM_201570.3 | NP_963864.1 | voltage-dependent L-type calcium channel subunit beta-2 isoform 7 |
| NM_201571.4 | NP_963865.2 | voltage-dependent L-type calcium channel subunit beta-2 isoform 6 |
| NM_201572.4 | NP_963866.2 | voltage-dependent L-type calcium channel subunit beta-2 isoform 8 |
| NM_201590.3 | NP_963884.2 | voltage-dependent L-type calcium channel subunit beta-2 isoform 3 |
| NM_201593.3 | NP_963887.2 | voltage-dependent L-type calcium channel subunit beta-2 isoform 5 |
| NM_201596.3 | NP_963890.2 | voltage-dependent L-type calcium channel subunit beta-2 isoform 2 |
| NM_201597.3 | NP_963891.1 | voltage-dependent L-type calcium channel subunit beta-2 isoform 4 |
| Molecular Function GO Annotation | Evidence | References | Source |
|---|---|---|---|
| contributes to high voltage-gated calcium channel activity |
IDA
IDA: Inferred from direct assay
|
1309651 | GOA |
| enables protein binding |
IPI
IPI: Inferred from physical interaction
|
17525370 | GOA |
| enables voltage-gated calcium channel activity |
IDA
IDA: Inferred from direct assay
|
1309651 | GOA |
| contributes to voltage-gated calcium channel activity involved in AV node cell action potential |
IMP
IMP: Inferred from mutant phenotype
|
17224476 | GOA |
| contributes to voltage-gated calcium channel activity involved in cardiac muscle cell action potential |
IMP
IMP: Inferred from mutant phenotype
|
17224476 | GOA |
| Biological Process GO Annotation | Evidence | References | Source |
|---|---|---|---|
| involved in calcium ion import |
IDA
IDA: Inferred from direct assay
|
1309651 | GOA |
| involved in membrane depolarization during AV node cell action potential |
IMP
IMP: Inferred from mutant phenotype
|
17224476 | GOA |
| involved in membrane depolarization during atrial cardiac muscle cell action potential |
IMP
IMP: Inferred from mutant phenotype
|
17224476 | GOA |
| involved in positive regulation of calcium ion transport |
IDA
IDA: Inferred from direct assay
|
1309651 | GOA |
| involved in regulation of heart rate by cardiac conduction |
IMP
IMP: Inferred from mutant phenotype
|
17224476 | GOA |
| Cellular Component GO Annotation | Evidence | References | Source |
|---|---|---|---|
| part of L-type voltage-gated calcium channel complex |
IDA
IDA: Inferred from direct assay
|
1309651 | GOA |
| part of voltage-gated calcium channel complex |
IDA
IDA: Inferred from direct assay
|
17224476 | GOA |
CACNB2 Protein Structure
VGCC_beta4Aa_N: Voltage gated calcium channel subunit beta domain 4Aa N terminal (72 - 113)
Guanylate_kin: Guanylate kinase (280 - 460)
- 0
- 200
- 400
- 600
- 660 a.a.
| Protein Preferred Names | Protein Names | |
|---|---|---|
|
voltage-dependent L-type calcium channel subunit beta-2 |
|
CACNB2 Protein-protein interaction Information
|
Type
|
Protein Name | Protein ID | Interactor | Interactor Species | Interactor ID | Detection Method | References |
|---|---|---|---|---|---|---|---|
|
Intra
|
CACNB2 | Q08289 | CTBP2 | Homo sapiens | P56545-3 | 32296183 | |
|
Intra
|
CACNB2 | Q08289 | CTBP2 | Homo sapiens | P56545-3 | 32296183 | |
|
Intra
|
CACNB2 | Q08289 | TMEM174 | Homo sapiens | Q8WUU8 | 32296183 | |
|
Intra
|
CACNB2 | Q08289 | TMEM174 | Homo sapiens | Q8WUU8 | 32296183 | |
|
Intra
|
CACNB2 | Q08289 | TMEM174 | Homo sapiens | Q8WUU8 | 32296183 | |
|
Intra
|
CACNB2 | Q08289 | PRMT5 | Homo sapiens | O14744 | 32296183 | |
|
Intra
|
CACNB2 | Q08289 | PRMT5 | Homo sapiens | O14744 | 32296183 | |
|
Intra
|
CACNB2 | Q08289 | HEXIM2 | Homo sapiens | Q96MH2 | 32296183 | |
|
Intra
|
CACNB2 | Q08289 | HEXIM2 | Homo sapiens | Q96MH2 | 32296183 | |
|
Intra
|
CACNB2 | Q08289 | HEXIM2 | Homo sapiens | Q96MH2 | 32296183 |
Related Diseases
| Diseases | Alias | |
|---|---|---|
| Brugada Syndrome 4 |
|
|
| Lambert-Eaton Myasthenic Syndrome |
|
|
| Brugada Syndrome |
|
|
| Right Bundle Branch Block |
|
|
| Arrhythmogenic Right Ventricular Cardiomyopathy |
|
|
| Short Qt Syndrome |
|
|
| Timothy Syndrome |
|
|
| Hypertrophic Cardiomyopathy |
|
|
| Arrhythmogenic Right Ventricular Dysplasia, Familial, 10 |
|
|
| Bipolar Disorder |
|
|
| Distal Muscular Dystrophy With Anterior Tibial Onset |
|
|
| Heart Disease |
|
|
| Catecholaminergic Polymorphic Ventricular Tachycardia |
|
|
| Familial Atrial Fibrillation |
|
|
| Autism |
|
|
| Heart Conduction Disease |
|
|
| Schizophrenia |
|
|
| Long Qt Syndrome 1 |
|
|
| Long Qt Syndrome |
|
|
| Left Ventricular Noncompaction |
|
|
| Attention Deficit-Hyperactivity Disorder |
|
|
| Dilated Cardiomyopathy |
|
|
Orthologs Information
| Species | Symbol | Source | ID |
|---|---|---|---|
| Bos taurus | CACNB2 | VGNC | VGNC:26684 |
| Canis familiaris | CACNB2 | VGNC | VGNC:38645 |
| Felis catus | CACNB2 | VGNC | VGNC:60307 |
| Macaca mulatta | CACNB2 | VGNC | VGNC:70510 |
| Mus musculus | CACNB2 | MGD | MGI:894644 |
| Rattus norvegicus | CACNB2 | RGD | RGD:67385 |
| Others | CACNB2 | NCBI |