Protein classification

group of proteins that share a common evolutionary origin, reflected by similarity in their sequence

database that hierarchical categories protein structures based on structural and evolutionary relationships

InterPro is a database of protein families, protein domains and functional sites in which identifiable features found in known proteins can be applied to new protein sequences in order to functionally characterise them.

MEROPS is an online database for peptidases (also known as proteases, proteinases and proteolytic enzymes) and their inhibitors. The classification scheme for peptidases was published by Rawlings & Barrett in 1993, and that for protein inhibitors by Rawlings et al. in 2004. The most recent version, MEROPS 12.5, was released in September 2023.

group of proteins that share a common evolutionary origin, reflected by similarity in their structure

classification of membrane proteins including ion channels

biological database

database of protein domains structures

protein and genome structural and functional annotation database