Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
ADiphtheria_Re7o4wA3 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Common fold of diphtheria toxin/transcription factors/cytochrome fF: Diphtheria_RECOD (1.6)
ADiphtheria_Te7o4wA1 A: alpha arraysX: Toxins' membrane translocation domainsH: Diphtheria toxin, middle domain (From Topology)T: Diphtheria toxin, middle domainF: Diphtheria_TECOD (1.6)
ADiphtheria_Ce7o4wA2 A: a+b complex topologyX: ADP-ribosylation (From Topology)H: ADP-ribosylation (From Topology)T: ADP-ribosylationF: Diphtheria_CECOD (1.6)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF02764Diphtheria toxin, T domain (Diphtheria_T)Diphtheria toxin, T domainCentral domain of diphtheria toxin is the translocation (T) domain. pH induced conformational change in this domain triggers insertion into the endosomal membrane and facilitates the transfer of the catalytic domain into the cytoplasm.Domain
PF02763Diphtheria toxin, C domain (Diphtheria_C)Diphtheria toxin, C domainN-terminal catalytic (C) domain - blocks protein synthesis by transfer of ADP-ribose from NAD to a diphthamide residue of EF-2.Domain
PF01324Diphtheria toxin, R domain (Diphtheria_R)Diphtheria toxin, R domainC-terminal receptor binding (R) domain - binds to cell surface receptor, permitting the toxin to enter the cell by receptor mediated endocytosis.Domain