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COPA
HPA
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  • COPA
PROTEIN SUMMARY GENE INFORMATION RNA DATA ANTIBODY DATA
GENERAL INFORMATIONi

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.

COPA
Synonyms HEP-COP
Gene descriptioni

Full gene name according to HGNC.

COPI coat complex subunit alpha
Protein classi

Assigned HPA protein class(es) for the encoded protein(s).

Disease related genes
Human disease related genes
Plasma proteins
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.

Secreted, Intracellular
Protein evidence Evidence at protein level (all genes)
GENE INFORMATIONi

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 1
Cytoband q23.2
Chromosome location (bp) 160288594 - 160343566
Number of transcriptsi

Number of protein-coding transcripts from the gene as defined by Ensembl.

7
Ensembl ENSG00000122218 (version 109)
Entrez gene 1314
HGNC HGNC:2230
UniProt P53621 (UniProt - Evidence at protein level)
neXtProt NX_P53621
GeneCards COPA
Antibodypedia COPA antibodies


PROTEIN FUNCTION
Protein function (UniProt)i

Useful information about the protein provided by UniProt.

The coatomer is a cytosolic protein complex that binds to dilysine motifs and reversibly associates with Golgi non-clathrin-coated vesicles, which further mediate biosynthetic protein transport from the ER, via the Golgi up to the trans Golgi network. Coatomer complex is required for budding from Golgi membranes, and is essential for the retrograde Golgi-to-ER transport of dilysine-tagged proteins. In mammals, the coatomer can only be recruited by membranes associated to ADP-ribosylation factors (ARFs), which are small GTP-binding proteins; the complex also influences the Golgi structural integrity, as well as the processing, activity, and endocytic recycling of LDL receptors (By similarity).... show less
Molecular function (UniProt)i

Keywords assigned by UniProt to proteins due to their particular molecular function.

Hormone
Biological process (UniProt)i

Keywords assigned by UniProt to proteins because they are involved in a particular biological process.

ER-Golgi transport, Protein transport, Transport
Gene summary (Entrez)i

Useful information about the gene from Entrez

In eukaryotic cells, protein transport between the endoplasmic reticulum and Golgi compartments is mediated in part by non-clathrin-coated vesicular coat proteins (COPs). Seven coat proteins have been identified, and they represent subunits of a complex known as coatomer. The subunits are designated alpha-COP, beta-COP, beta-prime-COP, gamma-COP, delta-COP, epsilon-COP, and zeta-COP. The alpha-COP, encoded by COPA, shares high sequence similarity with RET1P, the alpha subunit of the coatomer complex in yeast. Also, the N-terminal 25 amino acids of alpha-COP encode the bioactive peptide, xenin, which stimulates exocrine pancreatic secretion and may act as a gastrointestinal hormone. Alternative splicing results in multiple splice forms encoding distinct isoforms. [provided by RefSeq, Jul 2008]... 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.
Splice variant SwissProt TrEMBL Protein class Gene ontology Length & mass Signal peptide
(predicted)
Transmembrane regions
(predicted)
COPA-201
ENSP00000241704
ENST00000241704
P53621
[Direct mapping] Coatomer subunit alpha Xenin Proxenin
Show all
Predicted secreted proteins
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Plasma proteins
Disease related genes
Human disease related genes
   Immune system diseases
   Allergies and autoimmune diseases
Mapped to neXtProt
   neXtProt - Evidence at protein level
Protein evidence (Kim et al 2014)
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0000139 [Golgi membrane]
GO:0005179 [hormone activity]
GO:0005198 [structural molecule activity]
GO:0005515 [protein binding]
GO:0005576 [extracellular region]
GO:0005615 [extracellular space]
GO:0005737 [cytoplasm]
GO:0005789 [endoplasmic reticulum membrane]
GO:0005794 [Golgi apparatus]
GO:0005829 [cytosol]
GO:0006886 [intracellular protein transport]
GO:0006888 [endoplasmic reticulum to Golgi vesicle-mediated transport]
GO:0006890 [retrograde vesicle-mediated transport, Golgi to endoplasmic reticulum]
GO:0006891 [intra-Golgi vesicle-mediated transport]
GO:0007165 [signal transduction]
GO:0015031 [protein transport]
GO:0016020 [membrane]
GO:0016192 [vesicle-mediated transport]
GO:0030117 [membrane coat]
GO:0030126 [COPI vesicle coat]
GO:0030133 [transport vesicle]
GO:0030157 [pancreatic juice secretion]
GO:0030426 [growth cone]
GO:0030663 [COPI-coated vesicle membrane]
GO:0031410 [cytoplasmic vesicle]
GO:0070062 [extracellular exosome]
Show all
1224 aa
138.3 kDa
No 0
COPA-202
ENSP00000357048
ENST00000368069
P53621
[Direct mapping] Coatomer subunit alpha Xenin Proxenin
Show all
Predicted secreted proteins
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Plasma proteins
Disease related genes
Human disease related genes
   Immune system diseases
   Allergies and autoimmune diseases
Mapped to neXtProt
   neXtProt - Evidence at protein level
Protein evidence (Kim et al 2014)
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0000139 [Golgi membrane]
GO:0005179 [hormone activity]
GO:0005198 [structural molecule activity]
GO:0005515 [protein binding]
GO:0005576 [extracellular region]
GO:0005615 [extracellular space]
GO:0005737 [cytoplasm]
GO:0005789 [endoplasmic reticulum membrane]
GO:0005794 [Golgi apparatus]
GO:0005829 [cytosol]
GO:0006886 [intracellular protein transport]
GO:0006888 [endoplasmic reticulum to Golgi vesicle-mediated transport]
GO:0006890 [retrograde vesicle-mediated transport, Golgi to endoplasmic reticulum]
GO:0006891 [intra-Golgi vesicle-mediated transport]
GO:0007165 [signal transduction]
GO:0015031 [protein transport]
GO:0016020 [membrane]
GO:0016192 [vesicle-mediated transport]
GO:0030117 [membrane coat]
GO:0030126 [COPI vesicle coat]
GO:0030133 [transport vesicle]
GO:0030157 [pancreatic juice secretion]
GO:0030426 [growth cone]
GO:0030663 [COPI-coated vesicle membrane]
GO:0031410 [cytoplasmic vesicle]
GO:0070062 [extracellular exosome]
Show all
1233 aa
139.3 kDa
No 0
COPA-208
ENSP00000497495
ENST00000647683
A0A3B3IT15
[Direct mapping] Coatomer subunit alpha
Show all
Predicted secreted proteins
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Human disease related genes
   Immune system diseases
   Allergies and autoimmune diseases
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0000139 [Golgi membrane]
GO:0005198 [structural molecule activity]
GO:0005515 [protein binding]
GO:0005737 [cytoplasm]
GO:0005794 [Golgi apparatus]
GO:0006886 [intracellular protein transport]
GO:0006888 [endoplasmic reticulum to Golgi vesicle-mediated transport]
GO:0015031 [protein transport]
GO:0016020 [membrane]
GO:0016192 [vesicle-mediated transport]
GO:0030117 [membrane coat]
GO:0030126 [COPI vesicle coat]
GO:0030663 [COPI-coated vesicle membrane]
GO:0031410 [cytoplasmic vesicle]
Show all
1204 aa
136 kDa
No 0
COPA-211
ENSP00000498078
ENST00000647899
A0A3B3IU89
[Direct mapping] Coatomer subunit alpha
Show all
Predicted secreted proteins
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Human disease related genes
   Immune system diseases
   Allergies and autoimmune diseases
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0000139 [Golgi membrane]
GO:0005198 [structural molecule activity]
GO:0005515 [protein binding]
GO:0005737 [cytoplasm]
GO:0005794 [Golgi apparatus]
GO:0006886 [intracellular protein transport]
GO:0016020 [membrane]
GO:0016192 [vesicle-mediated transport]
GO:0030117 [membrane coat]
GO:0030663 [COPI-coated vesicle membrane]
GO:0031410 [cytoplasmic vesicle]
Show all
682 aa
77 kDa
No 0
COPA-212
ENSP00000497811
ENST00000648280
A0A3B3ITI7
[Direct mapping] Coatomer subunit alpha
Show all
Predicted secreted proteins
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Human disease related genes
   Immune system diseases
   Allergies and autoimmune diseases
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0005198 [structural molecule activity]
GO:0005515 [protein binding]
GO:0006886 [intracellular protein transport]
GO:0016192 [vesicle-mediated transport]
GO:0030126 [COPI vesicle coat]
Show all
452 aa
49.8 kDa
No 0
COPA-217
ENSP00000497257
ENST00000649676
A0A3B3ISC6
[Direct mapping] Coatomer subunit alpha
Show all
Predicted secreted proteins
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Human disease related genes
   Immune system diseases
   Allergies and autoimmune diseases
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0000139 [Golgi membrane]
GO:0005198 [structural molecule activity]
GO:0005515 [protein binding]
GO:0005737 [cytoplasm]
GO:0005794 [Golgi apparatus]
GO:0006886 [intracellular protein transport]
GO:0016020 [membrane]
GO:0016192 [vesicle-mediated transport]
GO:0030117 [membrane coat]
GO:0030126 [COPI vesicle coat]
Show all
1024 aa
114.9 kDa
No 0
COPA-218
ENSP00000497231
ENST00000649787
A0A3B3IS84
[Direct mapping] Coatomer subunit alpha
Show all
Predicted secreted proteins
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Human disease related genes
   Immune system diseases
   Allergies and autoimmune diseases
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0000139 [Golgi membrane]
GO:0005198 [structural molecule activity]
GO:0005515 [protein binding]
GO:0005737 [cytoplasm]
GO:0005794 [Golgi apparatus]
GO:0006886 [intracellular protein transport]
GO:0006888 [endoplasmic reticulum to Golgi vesicle-mediated transport]
GO:0015031 [protein transport]
GO:0016020 [membrane]
GO:0016192 [vesicle-mediated transport]
GO:0030117 [membrane coat]
GO:0030126 [COPI vesicle coat]
Show all
1204 aa
136.1 kDa
No 0

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