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General description of the gene and the encoded protein(s) using information from HGNC and Ensembl, as well as predictions made by the Human Protein Atlas project.
Gene namei
Official gene symbol, which is typically a short form of the gene name, according to HGNC.
Assigned HPA protein class(es) for the encoded protein(s).
Disease related genes FDA approved drug targets Transporters
Predicted locationi
All transcripts of all genes have been analyzed regarding the location(s) of corresponding protein based on prediction methods for signal peptides and transmembrane regions.
Genes with at least one transcript predicted to encode a secreted protein, according to prediction methods or to UniProt location data, have been further annotated and classified with the aim to determine if the corresponding protein(s) are secreted or actually retained in intracellular locations or membrane-attached.
Remaining genes, with no transcript predicted to encode a secreted protein, will be assigned the prediction-based location(s).
The annotated location overrules the predicted location, so that a gene encoding a predicted secreted protein that has been annotated as intracellular will have intracellular as the final location.
Gene information from Ensembl and Entrez, as well as links to available gene identifiers are displayed here. Information was retrieved from Ensembl if not indicated otherwise.
Chromosome
3
Cytoband
p21.31
Chromosome location (bp)
50362613 - 50504244
Number of transcriptsi
Number of protein-coding transcripts from the gene as defined by Ensembl.
Useful information about the protein provided by UniProt.
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) and possibly T-type (CACNA1G) 1,2. Overexpression induces apoptosis....show less
Molecular function (UniProt)i
Keywords assigned by UniProt to proteins due to their particular molecular function.
Calcium channel, Ion channel, Voltage-gated channel
Biological process (UniProt)i
Keywords assigned by UniProt to proteins because they are involved in a particular biological process.
Calcium transport, Ion transport, Transport
Ligand (UniProt)i
Keywords assigned by UniProt to proteins because they bind, are associated with, or whose activity is dependent of some molecule.
Calcium, Metal-binding
Gene summary (Entrez)i
Useful information about the gene from Entrez
Calcium channels mediate the entry of calcium ions into the cell upon membrane polarization. This gene encodes the alpha-2/delta subunit of the voltage-dependent calcium channel complex. The complex consists of the main channel-forming subunit alpha-1, and auxiliary subunits alpha-2/delta, beta, and gamma. The auxiliary subunits function in the assembly and membrane localization of the complex, and modulate calcium currents and channel activation/inactivation kinetics. The subunit encoded by this gene undergoes post-translational cleavage to yield the extracellular alpha2 peptide and a membrane-anchored delta polypeptide. This subunit is a receptor for the antiepileptic drug, gabapentin. Mutations in this gene are associated with early infantile epileptic encephalopathy. Single nucleotide polymorphisms in this gene are correlated with increased sensitivity to opioid drugs. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Mar 2014]...show less
PROTEIN INFORMATIONi
The protein information section displays alternative protein-coding transcripts (splice variants) encoded by this gene according to the Ensembl database.
The Splice variant identifier links to the Ensembl website protein summary for the selected splice variant. The data in the Swissprot and TrEMBL columns links to corresponding pages in the UniProt database.
The protein classes assigned to this protein are shown if expanding the data in the protein class column. Parent protein classes are in bold font and subclasses are listed under the parent class.
The length of the protein (amino acid residues according to Ensembl), molecular mass (kDalton), predicted signal peptide and number of predicted transmembrane region(s) according to in-house majority decision methods based on sets of predictors are also reported.
Transporters Accessory Factors Involved in Transport MEMSAT3 predicted membrane proteins Phobius predicted membrane proteins SCAMPI predicted membrane proteins THUMBUP predicted membrane proteins SPOCTOPUS predicted secreted proteins DeepTMHMM predicted secreted proteins Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC Disease related genes FDA approved drug targets Small molecule drugs Mapped to neXtProt neXtProt - Evidence at protein level Protein evidence (Kim et al 2014) Protein evidence (Ezkurdia et al 2014)
Transporters Accessory Factors Involved in Transport MEMSAT3 predicted membrane proteins SCAMPI predicted membrane proteins THUMBUP predicted membrane proteins Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC Disease related genes FDA approved drug targets Small molecule drugs Mapped to neXtProt neXtProt - Evidence at protein level Protein evidence (Ezkurdia et al 2014)
Transporters Accessory Factors Involved in Transport MEMSAT3 predicted membrane proteins Phobius predicted membrane proteins SCAMPI predicted membrane proteins THUMBUP predicted membrane proteins SPOCTOPUS predicted secreted proteins DeepTMHMM predicted secreted proteins Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC Disease related genes FDA approved drug targets Small molecule drugs Mapped to neXtProt neXtProt - Evidence at protein level Protein evidence (Kim et al 2014) Protein evidence (Ezkurdia et al 2014)
Transporters Accessory Factors Involved in Transport MEMSAT3 predicted membrane proteins Phobius predicted membrane proteins SCAMPI predicted membrane proteins SPOCTOPUS predicted membrane proteins THUMBUP predicted membrane proteins SPOCTOPUS predicted secreted proteins DeepTMHMM predicted secreted proteins Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC Disease related genes FDA approved drug targets Small molecule drugs Mapped to neXtProt neXtProt - Evidence at protein level Protein evidence (Kim et al 2014) Protein evidence (Ezkurdia et al 2014)
The Human Protein Atlas project is funded
