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NUCLEOTIDE-FREE DIPHTHERIA TOXIN External Resource: Annotation Chains Domain Info Class Fold Superfamily Family Domain Species Provenance Source (Version) A d1sgka1 All beta proteins Common fold of diphtheria toxin/transcription factors/cytochrome f Diphtheria toxin, C-terminal domain Diphtheria toxin, C-terminal domain Diphtheria toxin, C-terminal domain (Corynephage beta ) [TaxId: 10703 ], SCOPe (2.08) A d1sgka2 Alpha and beta proteins (a+b) ADP-ribosylation ADP-ribosylation ADP-ribosylating toxins Diphtheria toxin, N-terminal domain (Corynephage beta ) [TaxId: 10703 ], SCOPe (2.08) A d1sgka3 Membrane and cell surface proteins and peptides Toxins' membrane translocation domains Diphtheria toxin, middle domain Diphtheria toxin, middle domain Diphtheria toxin, middle domain (Corynephage beta ) [TaxId: 10703 ], SCOPe (2.08)
Domain Annotation: SCOP2 Classification SCOP2 Database Homepage Chains Type Family Name Domain Identifier Family Identifier Provenance Source (Version) A SCOP2B Superfamily Diphtheria toxin C-terminal domain 8040181 3000694 SCOP2B (2022-06-29) A SCOP2B Superfamily Diphtheria toxin middle domain 8037645 3001959 SCOP2B (2022-06-29) A SCOP2B Superfamily ADP-ribosylation 8036997 3001208 SCOP2B (2022-06-29)
Chains Family Name Domain Identifier Architecture Possible Homology Homology Topology Family Provenance Source (Version) A PF01324 e1sgkA2 A: beta sandwiches X: Immunoglobulin-like beta-sandwich H: Immunoglobulin-related T: Common fold of diphtheria toxin/transcription factors/cytochrome f F: PF01324 ECOD (1.6) A PF02764 e1sgkA6 A: alpha arrays X: Toxins' membrane translocation domains H: Diphtheria toxin, middle domain (From Topology) T: Diphtheria toxin, middle domain F: PF02764 ECOD (1.6) A PF02763 e1sgkA4 A: a+b complex topology X: ADP-ribosylation (From Topology) H: ADP-ribosylation (From Topology) T: ADP-ribosylation F: PF02763 ECOD (1.6)
Chains Accession Name Description Comments Source PF02764 Diphtheria toxin, T domain (Diphtheria_T) Diphtheria toxin, T domain Central 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 PF02763 Diphtheria toxin, C domain (Diphtheria_C) Diphtheria toxin, C domain N-terminal catalytic (C) domain - blocks protein synthesis by transfer of ADP-ribose from NAD to a diphthamide residue of EF-2. Domain PF01324 Diphtheria toxin, R domain (Diphtheria_R) Diphtheria toxin, R domain C-terminal receptor binding (R) domain - binds to cell surface receptor, permitting the toxin to enter the cell by receptor mediated endocytosis. Domain
Chains Polymer Molecular Function Biological Process Cellular Component DIPHTHERIA TOXIN (DIMERIC) -