Q9Z1L5 (CA2D3_MOUSE) Reviewed, UniProtKB/Swiss-Prot
Last modified
May 1, 2013.
Version 72.
History...
Names·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order
Names·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize orderNames and origin
| Protein names | Recommended name: Voltage-dependent calcium channel subunit alpha-2/delta-3 Alternative name(s): Voltage-gated calcium channel subunit alpha-2/delta-3 Cleaved into the following 2 chains: | ||
| Gene names |
| ||
| 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 | 1091 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. Acts as a regulatory subunit for P/Q-type calcium channel (CACNA1A), N-type (CACNA1B), L-type (CACNA1C OR CACNA1D) but not T-type (CACNA1G). Ref.1 Ref.2 |
| Subunit structure | Dimer formed of alpha-2-2 and delta-2 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 | Brain-specific. Predominantly expressed in the caudate putamen, entorhinal complex, hippocampus and cortex. Ref.1 Ref.3 |
| 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 | N-glycosylated. Ref.4 May be proteolytically processed into subunits alpha-2-3 and delta-3 that are disulfide-linked. It is however unclear whether such cleavage really takes place in vivo and has a functional role. |
| Miscellaneous | In contrast to CACNA2D1 and CACNA2D2, it does not bind gabapentin, an antiepileptic drug. |
| 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 |
| 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) | |
| Cellular_component | integral to membrane Inferred from electronic annotation. Source: UniProtKB-KW |
| 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... | |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Signal peptide | 1 – 33 | 33 | Potential | ||||||
| Chain | 34 – 1091 | 1058 | Voltage-dependent calcium channel subunit alpha-2/delta-3 | PRO_0000304649 | |||||
| Chain | 34 – ? | Voltage-dependent calcium channel subunit alpha-2-3 Potential | PRO_0000304650 | ||||||
| Chain | ? – 1091 | Voltage-dependent calcium channel subunit delta-3 Potential | PRO_0000304651 | ||||||
Regions | |||||||||
| Topological domain | 34 – 1007 | 974 | Extracellular Potential | ||||||
| Transmembrane | 1008 – 1030 | 23 | Helical; Potential | ||||||
| Topological domain | 1031 – 1091 | 61 | Cytoplasmic Potential | ||||||
| Domain | 256 – 438 | 183 | VWFA | ||||||
| Domain | 452 – 549 | 98 | Cache | ||||||
| Motif | 262 – 266 | 5 | MIDAS-like motif | ||||||
Sites | |||||||||
| Metal binding | 262 | 1 | Divalent metal cation By similarity | ||||||
| Metal binding | 264 | 1 | Divalent metal cation By similarity | ||||||
| Metal binding | 266 | 1 | Divalent metal cation By similarity | ||||||
Amino acid modifications | |||||||||
| Glycosylation | 166 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 309 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 553 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 632 | 1 | N-linked (GlcNAc...) Potential | ||||||
Sequences
| ||||||||||||||||||
References
| [1] | "Molecular diversity of the calcium channel alpha2delta subunit." Klugbauer N., Lacinova L., Marais E., Hobom M., Hofmann F. J. Neurosci. 19:684-691(1999) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA], FUNCTION, TISSUE SPECIFICITY. Tissue: Brain. |
| [2] | "Absence of modulation of the expressed calcium channel alpha1G subunit by alpha2delta subunits." Lacinova L., Klugbauer N., Hofmann F. J. Physiol. (Lond.) 516:639-645(1999) [PubMed] [Europe PMC] [Abstract] Cited for: FUNCTION. |
| [3] | "Tissue-specific expression and gabapentin-binding properties of calcium channel alpha2delta subunit subtypes." Gong H.C., Hang J., Kohler W., Li L., Su T.-Z. J. Membr. Biol. 184:35-43(2001) [PubMed] [Europe PMC] [Abstract] Cited for: TISSUE SPECIFICITY. |
| [4] | "Calcium channel alpha(2)delta subunits-structure and Gabapentin binding." Marais E., Klugbauer N., Hofmann F. Mol. Pharmacol. 59:1243-1248(2001) [PubMed] [Europe PMC] [Abstract] Cited for: DISULFIDE BONDS, GLYCOSYLATION, PROTEOLYTIC PROCESSING, LACK OF GABAPENTIN-BINDING. |
| + | Additional computationally mapped references. |
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | AJ010949 mRNA. Translation: CAA09423.1. |
| IPI | IPI00130253. |
| PIR | T30256. |
| RefSeq | NP_033915.1. NM_009785.1. |
| UniGene | Mm.386754. |
3D structure databases | |
| ProteinModelPortal | Q9Z1L5. |
| ModBase | Search... |
Protein-protein interaction databases | |
| IntAct | Q9Z1L5. 1 interaction. |
| STRING | 10090.ENSMUSP00000022567. |
PTM databases | |
| PhosphoSite | Q9Z1L5. |
Proteomic databases | |
| PaxDb | Q9Z1L5. |
| PRIDE | Q9Z1L5. |
Protocols and materials databases | |
| DNASU | 12294. |
| StructuralBiologyKnowledgebase | Search... |
Genome annotation databases | |
| Ensembl | ENSMUST00000022567; ENSMUSP00000022567; ENSMUSG00000021991. |
| GeneID | 12294. |
| KEGG | mmu:12294. |
| UCSC | uc007sui.1. mouse. |
Organism-specific databases | |
| CTD | 55799. |
| MGI | MGI:1338890. Cacna2d3. |
Phylogenomic databases | |
| eggNOG | NOG307080. |
| GeneTree | ENSGT00530000062904. |
| HOGENOM | HOG000010247. |
| HOVERGEN | HBG107124. |
| InParanoid | Q9Z1L5. |
| KO | K04860. |
| OMA | KTIPKYK. |
| OrthoDB | EOG479F69. |
Gene expression databases | |
| Bgee | Q9Z1L5. |
| Genevestigator | Q9Z1L5. |
Family and domain databases | |
| InterPro | IPR004010. Cache_domain. IPR013608. VWA_N. IPR002035. VWF_A. [Graphical view] |
| Pfam | PF02743. Cache_1. 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 | |
| NextBio | 280792. |
| SOURCE | Search... |
Entry information
| Entry name | CA2D3_MOUSE | ||||||||
| Accession | Primary (citable) accession number: Q9Z1L5 | ||||||||
| Entry history |
| ||||||||
| 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
