UniProt collects information on the species and protein level, allowing users to obtain reference proteomes and information about individual proteins, respectively. By cross-referencing various other databases, and collecting information from existing publications, UniProt is aiming to provide a comprehensive overview of available information for each protein.
Citations
UniProt Consortium. UniProt: the Universal Protein Knowledgebase in 2023. Nucleic Acids Res. 2023 Jan 6;51(D1):D523-D531. doi: 10.1093/nar/gkac1052. PMID: 36408920; PMCID: PMC9825514.