You can use PRIDE to find data that have been submitted in support of a piece of published work, or you can search across submissions for particular proteins of interest. Each identification carries with it a description of the experimental method used. PRIDE links the published work from the summary page using PubMed IDs. An increasing number of journals mandate deposition of data in PRIDE as part of the publication process, hence the quality of data in PRIDE broadly follows the protein identification standards required by journals. Most journals require the minimum level evidence specified by the 'Philadelphia Guidelines' (6) and fully described in the MIAPE guidelines. You can learn more about PRIDE on the PRIDE Quick Tour.