O08532 (CA2D1_MOUSE) Reviewed, UniProtKB/Swiss-Prot
Last modified
April 3, 2013.
Version 102.
History...
Names·Attributes·General annotation·Ontologies·Alt products·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order
Names·Attributes·General annotation·Ontologies·Alt products·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize orderNames and origin
| Protein names | Recommended name: Voltage-dependent calcium channel subunit alpha-2/delta-1 Alternative name(s): Voltage-gated calcium channel subunit alpha-2/delta-1 Cleaved into the following 2 chains: | ||||
| Gene names |
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| Organism | Mus musculus (Mouse) [Reference proteome] | ||||
| Taxonomic identifier | 10090 [NCBI] | ||||
| Taxonomic lineage | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Glires › Rodentia › Sciurognathi › Muroidea › Muridae › Murinae › Mus › Mus![]() |
Protein attributes
| Sequence length | 1103 AA. |
| Sequence status | Complete. |
| Sequence processing | The displayed sequence is further processed into a mature form. |
| Protein existence | Evidence at protein level |
General annotation (Comments)
| Function | The alpha-2/delta subunit of voltage-dependent calcium channels regulates calcium current density and activation/inactivation kinetics of the calcium channel. Plays an important role in excitation-contraction coupling By similarity. |
| Subunit structure | Dimer formed of alpha-2-1 and delta-1 chains; disulfide-linked. Voltage-dependent calcium channels are multisubunit complexes, consisting of alpha-1 (CACNA1), alpha-2 (CACNA2D), beta (CACNB) and delta (CACNA2D) subunits in a 1:1:1:1 ratio By similarity. |
| Subcellular location | Membrane; Single-pass type I membrane protein Potential. |
| Tissue specificity | Isoform 2A is expressed in skeletal muscle and aorta. Isoform 2B is expressed in brain. Isoform 2C is expressed in heart. Isoform 2D is expressed in heart and smooth muscle. Isoform 2E is expressed in smooth muscle. All five isoforms are expressed in the cardiovascular system. |
| Domain | The MIDAS-like motif in the VWFA domain binds divalent metal cations and is required to promote trafficking of the alpha-1 (CACNA1) subunit to the plasma membrane by an integrin-like switch By similarity. |
| Post-translational modification | Proteolytically processed into subunits alpha-2-1 and delta-1 that are disulfide-linked By similarity. |
| Miscellaneous | Binds gabapentin, an antiepileptic drug By similarity. |
| Sequence similarities | Belongs to the calcium channel subunit alpha-2/delta family. Contains 1 cache domain. Contains 1 VWFA domain. |
Ontologies
| Keywords | |
|---|---|
| Biological process | Calcium transport Ion transport Transport |
| Cellular component | Membrane |
| Coding sequence diversity | Alternative splicing |
| Domain | Signal Transmembrane Transmembrane helix |
| Ligand | Calcium Metal-binding |
| Molecular function | Calcium channel Ion channel Voltage-gated channel |
| PTM | Disulfide bond Glycoprotein |
| Technical term | Complete proteome Reference proteome |
| Gene Ontology (GO) | |
| Biological_process | regulation of calcium ion transport Inferred from mutant phenotype PubMed 15536090. Source: MGI |
| Cellular_component | T-tubule Inferred from direct assay PubMed 15536090. Source: MGI sarcoplasmic reticulumInferred from direct assay PubMed 15536090. Source: MGI voltage-gated calcium channel complexInferred from electronic annotation. Source: Compara |
| Molecular_function | metal ion binding Inferred from electronic annotation. Source: UniProtKB-KW voltage-gated calcium channel activityInferred from electronic annotation. Source: Compara |
| Complete GO annotation... | |
Alternative products
| This entry describes 5 isoforms produced by alternative splicing. [Align] [Select] | ||||||
| Isoform 2A (identifier: O08532-1) This isoform has been chosen as the 'canonical' sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry. | ||||||
| Isoform 2B (identifier: O08532-2) The sequence of this isoform differs from the canonical sequence as follows: 531-549: Missing. | ||||||
| Isoform 2C (identifier: O08532-3) The sequence of this isoform differs from the canonical sequence as follows: 531-554: Missing. | ||||||
| Isoform 2D (identifier: O08532-4) The sequence of this isoform differs from the canonical sequence as follows: 531-554: Missing. 644-644: Y → SKKGKMKD | ||||||
| Isoform 2E (identifier: O08532-5) The sequence of this isoform differs from the canonical sequence as follows: 531-549: Missing. 644-644: Y → SKKGKMKD |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Signal peptide | 1 – 24 | 24 | By similarity | ||||||
| Chain | 25 – 1103 | 1079 | Voltage-dependent calcium channel subunit alpha-2/delta-1 | PRO_0000304634 | |||||
| Chain | 25 – 957 | 933 | Voltage-dependent calcium channel subunit alpha-2-1 | PRO_0000005003 | |||||
| Chain | 958 – 1103 | 146 | Voltage-dependent calcium channel subunit delta-1 | PRO_0000005004 | |||||
Regions | |||||||||
| Topological domain | 25 – 1073 | 1049 | Extracellular Potential | ||||||
| Transmembrane | 1074 – 1094 | 21 | Helical; Potential | ||||||
| Topological domain | 1095 – 1103 | 9 | Cytoplasmic Potential | ||||||
| Domain | 253 – 430 | 178 | VWFA | ||||||
| Domain | 446 – 537 | 92 | Cache | ||||||
| Motif | 259 – 263 | 5 | MIDAS-like motif | ||||||
Sites | |||||||||
| Metal binding | 259 | 1 | Divalent metal cation By similarity | ||||||
| Metal binding | 261 | 1 | Divalent metal cation By similarity | ||||||
| Metal binding | 263 | 1 | Divalent metal cation By similarity | ||||||
Amino acid modifications | |||||||||
| Glycosylation | 92 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 136 | 1 | N-linked (GlcNAc...) Ref.2 Ref.3 | ||||||
| Glycosylation | 184 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 323 | 1 | N-linked (GlcNAc...) Ref.2 | ||||||
| Glycosylation | 324 | 1 | N-linked (GlcNAc...) Ref.2 | ||||||
| Glycosylation | 348 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 613 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 772 | 1 | N-linked (GlcNAc...) Ref.2 | ||||||
| Glycosylation | 781 | 1 | N-linked (GlcNAc...) Ref.2 Ref.3 | ||||||
| Glycosylation | 888 | 1 | N-linked (GlcNAc...) Potential | ||||||
Natural variations | |||||||||
| Alternative sequence | 531 – 554 | 24 | Missing in isoform 2C and isoform 2D. | VSP_050445 | |||||
| Alternative sequence | 531 – 549 | 19 | Missing in isoform 2B and isoform 2E. | VSP_050444 | |||||
| Alternative sequence | 644 | 1 | Y → SKKGKMKD in isoform 2D and isoform 2E. | VSP_050446 | |||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "Tissue-specific expression of splice variants of the mouse voltage-gated calcium channel alpha2/delta subunit." Angelotti T., Hofmann F. FEBS Lett. 397:331-337(1996) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA]. Tissue: Brain. |
| [2] | "The mouse C2C12 myoblast cell surface N-linked glycoproteome: identification, glycosite occupancy, and membrane orientation." Gundry R.L., Raginski K., Tarasova Y., Tchernyshyov I., Bausch-Fluck D., Elliott S.T., Boheler K.R., Van Eyk J.E., Wollscheid B. Mol. Cell. Proteomics 8:2555-2569(2009) [PubMed] [Europe PMC] [Abstract] Cited for: GLYCOSYLATION [LARGE SCALE ANALYSIS] AT ASN-136; ASN-323; ASN-324; ASN-772 AND ASN-781, MASS SPECTROMETRY. Tissue: Myoblast. |
| [3] | "Mass-spectrometric identification and relative quantification of N-linked cell surface glycoproteins." Wollscheid B., Bausch-Fluck D., Henderson C., O'Brien R., Bibel M., Schiess R., Aebersold R., Watts J.D. Nat. Biotechnol. 27:378-386(2009) [PubMed] [Europe PMC] [Abstract] Cited for: GLYCOSYLATION [LARGE SCALE ANALYSIS] AT ASN-136 AND ASN-781, MASS SPECTROMETRY. |
| + | Additional computationally mapped references. |
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | U73484 mRNA. Translation: AAB50139.1. U73485 mRNA. Translation: AAB50140.1. U73483 mRNA. Translation: AAB50138.1. U73486 mRNA. Translation: AAB50141.1. U73487 mRNA. Translation: AAB50142.1. |
| IPI | IPI00230013. IPI00319970. IPI00407868. IPI00410982. IPI00626793. |
| RefSeq | NP_001104313.1. NM_001110843.1. NP_001104314.1. NM_001110844.1. NP_001104315.1. NM_001110845.1. NP_001104316.1. NM_001110846.1. NP_033914.1. NM_009784.2. |
| UniGene | Mm.159842. |
3D structure databases | |
| ProteinModelPortal | O08532. |
| ModBase | Search... |
Protein-protein interaction databases | |
| IntAct | O08532. 2 interactions. |
PTM databases | |
| PhosphoSite | O08532. |
Proteomic databases | |
| PaxDb | O08532. |
| PRIDE | O08532. |
Protocols and materials databases | |
| StructuralBiologyKnowledgebase | Search... |
Genome annotation databases | |
| Ensembl | ENSMUST00000039370; ENSMUSP00000049457; ENSMUSG00000040118. ENSMUST00000078272; ENSMUSP00000077391; ENSMUSG00000040118. ENSMUST00000101581; ENSMUSP00000099117; ENSMUSG00000040118. ENSMUST00000115281; ENSMUSP00000110936; ENSMUSG00000040118. ENSMUST00000180204; ENSMUSP00000136260; ENSMUSG00000040118. |
| GeneID | 12293. |
| KEGG | mmu:12293. |
| UCSC | uc008wmx.2. mouse. uc008wmy.2. mouse. uc008wna.2. mouse. uc008wnb.2. mouse. |
Organism-specific databases | |
| CTD | 781. |
| MGI | MGI:88295. Cacna2d1. |
Phylogenomic databases | |
| eggNOG | NOG307080. |
| GeneTree | ENSGT00530000062904. |
| HOGENOM | HOG000004860. |
| HOVERGEN | HBG057779. |
| InParanoid | O08532. |
| KO | K04858. |
| OMA | DYTNQIG. |
| OrthoDB | EOG4CVG65. |
Gene expression databases | |
| ArrayExpress | O08532. |
| Bgee | O08532. |
| Genevestigator | O08532. |
| GermOnline | ENSMUSG00000040118. Mus musculus. |
Family and domain databases | |
| InterPro | IPR004010. Cache_domain. IPR013680. VDCC_a2/dsu. IPR013608. VWA_N. IPR002035. VWF_A. [Graphical view] |
| Pfam | PF02743. Cache_1. 1 hit. PF08473. VGCC_alpha2. 1 hit. PF00092. VWA. 1 hit. PF08399. VWA_N. 1 hit. [Graphical view] |
| SMART | SM00327. VWA. 1 hit. [Graphical view] |
| PROSITE | PS50234. VWFA. 1 hit. [Graphical view] |
| ProtoNet | Search... |
Other | |
| BindingDB | O08532. |
| ChEMBL | CHEMBL4676. |
| ChiTaRS | CACNA2D1. mouse. |
| NextBio | 280788. |
| SOURCE | Search... |
Entry information
| Entry name | CA2D1_MOUSE | ||||||||
| Accession | Primary (citable) accession number: O08532 Secondary accession number(s): O08533 O08536 | ||||||||
| Entry history |
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| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation program | Chordata Protein Annotation Program | ||||||||
Relevant documents
| MGD cross-references Mouse Genome Database (MGD) cross-references in UniProtKB/Swiss-Prot |
| SIMILARITY comments Index of protein domains and families |

Clusters with
