One of two multimeric complexes that forms a membrane vesicle coat. The mammalian COPI subunits are called alpha-, beta-, beta'-, gamma-, delta-, epsilon- and zeta-COP. Vesicles with COPI coats are found associated with Golgi membranes at steady state. (Gene Ontology, GO_0030126)
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14 proteins localized to the copi vesicle coat cellular component from the COMPARTMENTS Curated Protein Localization Evidence Scores dataset.