Cleavage Atlas

The Cleavage Atlas collects proteolytic cleavage sites observed in public mass-spectrometry proteomics data (PRIDE/ProteomeXchange). Each identifier names a single peptide bond in a UniProtKB protein, independent of which protease cleaves it: the UniProtKB accession, an optional isoform number, and the P1 residue position (Schechter-Berger numbering on the full precursor sequence, Met1 = 1). The bond named is the one between residue P1 and residue P1+1.