InnateDB: Systems Biology of the Innate Immune Response

Homo sapiens Protein: COPZ1

Summary

InnateDB Protein

IDBP-37818.6

Last Modified

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

Gene Symbol

COPZ1

Protein Name

coatomer protein complex, subunit zeta 1

Synonyms

COPZ; HSPC181; zeta-COP; zeta1-COP;

Species

Homo sapiens

Ensembl Protein

ENSP00000262061

InnateDB Gene

IDBG-37816 (COPZ1)

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 (By similarity). {ECO:0000250}.The zeta subunit may be involved in regulating the coat assembly and, hence, the rate of biosynthetic protein transport due to its association-dissociation properties with the coatomer complex.

Subcellular Localization

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

Disease Associations

Tissue Specificity

Comments

Interactions

Number of Interactions

This gene and/or its encoded proteins are associated with 29 experimentally validated interaction(s) in this database.
They are also associated with 2 interaction(s) predicted by orthology.

Experimentally validated
Total	29 [view]
Protein-Protein	28 [view]
Protein-DNA	1 [view]
Protein-RNA	0
DNA-DNA	0
RNA-RNA	0
DNA-RNA	0

Predicted by orthology
Total	2 [view]

Gene Ontology

Molecular Function

Accession

GO Term

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
GO:0048205	COPI coating of Golgi vesicle
GO:0061024	membrane organization