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Proteome identifier

The proteome identifier (UPID) is the unique identifier assigned to the set of proteins that constitute the proteome. It consists of the characters ‘UP’ followed by 9 digits, is stable across releases and can therefore be used to cite a UniProt proteome.

UniProtKB entries can be linked to one or more UPIDs. UPIDs generally correspond to one genome assembly, but in certain cases correspond to more than one assembly (e.g. when nuclear and mitochondrial components are sequenced and assembled independently).

UniProt is an ELIXIR core data resource
Main funding by: National Institutes of Health

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