The Pfam protein families database.
Robert D. FinnJaina MistryJohn G. TatePenny C. CoggillAndreas HegerJoanne E. PollingtonO. Luke GavinPrasad GunasekaranGoran CericKristoffer ForslundLiisa HolmErik L. L. SonnhammerSean R. EddyAlex BatemanPublished in: Nucleic Acids Res. (2010)