To update the existing CAMP database (11 (link)), protein data available in NCBI (12 (link)), UniProtKB (13 (link)) and PDB (14 (link)) databases post 2013 was queried using appropriate keywords such as ‘antimicrobial’, ‘antibacterial’, ‘antifungal’, ‘antiviral’ and ‘antiparasitic’. The obtained hits were manually curated to extract information on sequence, structure, protein definition, accession numbers, reference literature, activity, taxonomy of the source organism, target organisms with minimum inhibitory concentration (MIC) values, hemolytic activity of the peptide and protein family descriptions. This information is made available in CAMPR3. Links to UniProtKB, PDB, PubMed (12 (link)) and other databases dedicated to AMPs are also made available for the benefit of the users.