EntityQ417841· pop 22· linked from 6,482 articlesprotein familySign in to savegroup of proteins that share a common evolutionary origin, reflected by similarity in their sequenceConnectionssequence homologyEntityprotein superfamilyEntityBLASTEntityevolutionEntityproteinEntityInternational Standard Book NumberEntityenzymeEntityeukaryoteEntityfamilyEntitygeneEntitydigital object identifierEntityInternational Standard Serial NumberEntityhemoglobinEntitymutationEntityphylogeneticsEntitycladeEntityQ180686EntitybibcodeEntitystructureEntityQ229883EntityCategoriesBioinformaticsProtein classificationProtein familiesProtein superfamilies