InnateDB: Systems Biology of the Innate Immune Response

Bos taurus Protein: COPG1

Summary

InnateDB Protein

IDBP-699306.3

Last Modified

2014-10-13 [Report errors or provide feedback]

Gene Symbol

COPG1

Protein Name

coatomer subunit gamma

Synonyms

COPG; COPG2;

Species

Bos taurus

Ensembl Protein

ENSBTAP00000017588

InnateDB Gene

IDBG-646494 (COPG1)

Protein Structure

UniProt Annotation

Function

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. Required for limiting lipid storage in lipid droplets. Involved in lipid homeostasis by regulating the presence of perilipin family members PLIN2 and PLIN3 at the lipid droplet surface and promoting the association of adipocyte triglyceride lipase (PNPLA2) with the lipid droplet surface to mediate lipolysis (By similarity). {ECO:0000250}.

Subcellular Localization

Cytoplasm, cytosol. Golgi apparatus membrane {ECO:0000250}; Peripheral membrane protein {ECO:0000250}; Cytoplasmic side {ECO:0000250}. Cytoplasmic vesicle, COPI-coated vesicle membrane; Peripheral membrane protein; Cytoplasmic side. Note=The coatomer is cytoplasmic or polymerized on the cytoplasmic side of the Golgi, as well as on the vesicles/buds originating from it. Predominantly located in the cis-Golgi apparatus. {ECO:0000250}.

Disease Associations

Tissue Specificity

Comments

Interactions

Number of Interactions

This gene and/or its encoded proteins are associated with 1 experimentally validated interaction(s) in this database.
They are also associated with 31 interaction(s) predicted by orthology.

Experimentally validated
Total	1 [view]
Protein-Protein	1 [view]
Protein-DNA	0
Protein-RNA	0
DNA-DNA	0
RNA-RNA	0
DNA-RNA	0

Predicted by orthology
Total	31 [view]

Gene Ontology

Molecular Function

Accession	GO Term
GO:0005198	structural molecule activity
GO:0005488	binding
GO:0005515	protein binding

Biological Process

GO:0006810	transport
GO:0006886	intracellular protein transport
GO:0006890	retrograde vesicle-mediated transport, Golgi to ER
GO:0006891	intra-Golgi vesicle-mediated transport
GO:0015031	protein transport
GO:0016192	vesicle-mediated transport

Cellular Component

GO:0000139	Golgi membrane
GO:0005737	cytoplasm
GO:0005794	Golgi apparatus
GO:0005829	cytosol
GO:0016020	membrane
GO:0030117	membrane coat
GO:0030126	COPI vesicle coat
GO:0030663	COPI-coated vesicle membrane
GO:0031410	cytoplasmic vesicle

Protein Structure and Domains

PDB ID

InterPro

IPR002553 Clathrin/coatomer adaptor, adaptin-like, N-terminal
IPR009028 Coatomer/calthrin adaptor appendage, C-terminal subdomain
IPR013040 Coatomer, gamma subunit, appendage, Ig-like subdomain
IPR013041 Coatomer/clathrin adaptor appendage, Ig-like subdomain
IPR016024 Armadillo-type fold
IPR017106 Coatomer gamma subunit

PFAM

PF01602
PF08752

PRINTS

PIRSF

PIRSF037093

SMART

TIGRFAMs

Post-translational Modifications

Modification

Cross-References

SwissProt

P53620