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Crystal structure of diphtheria toxin mutant CRM197 with a disulphide bond replaced by a Cys-Acetone-Cys bridge External Resource: Annotation Chains Family Name Domain Identifier Architecture Possible Homology Homology Topology Family Provenance Source (Version) A Diphtheria_R e7o4wA3 A: beta sandwiches X: Immunoglobulin-like beta-sandwich H: Immunoglobulin-related T: Common fold of diphtheria toxin/transcription factors/cytochrome f F: Diphtheria_R ECOD (1.6) A Diphtheria_T e7o4wA1 A: alpha arrays X: Toxins' membrane translocation domains H: Diphtheria toxin, middle domain (From Topology) T: Diphtheria toxin, middle domain F: Diphtheria_T ECOD (1.6) A Diphtheria_C e7o4wA2 A: a+b complex topology X: ADP-ribosylation (From Topology) H: ADP-ribosylation (From Topology) T: ADP-ribosylation F: Diphtheria_C 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 -
