Crystal structure of Clostridioides difficile binary toxin proCDTb lacking D4 in complex with BINTOXB/22 Fab
Domain Annotation: ECOD Classification ECOD Database Homepage
| Chains | Family Name | Domain Identifier | Architecture | Possible Homology | Homology | Topology | Family | Provenance Source (Version) |
|---|---|---|---|---|---|---|---|---|
| C | TRPM2 | e8dcmC01 | A: a/b three-layered sandwiches | X: Rossmann-like | H: Rossmann-related | T: FAD/NAD(P)-binding domain | F: TRPM2 | ECOD (v294.1) |
| B | Ion_trans | e8dcmB1 | A: a/b three-layered sandwiches | X: RNase A-like | H: RNase A-like | T: RNase A-like | F: Ion_trans | ECOD (v294.1) |
| A | Ion_trans | e8dcmA1 | A: a/b three-layered sandwiches | X: RNase A-like | H: RNase A-like | T: RNase A-like | F: Ion_trans | ECOD (v294.1) |
SAbDab Antibody Annotation SAbDab Database Homepage
| Chain | Chain Class | Chain Subclass | Chain Type | Antigen Name(s) | Provenance Source |
|---|---|---|---|---|---|
| Light Chain | IGKV6 | Kappa | adp-ribosylating binary toxin binding subunit cdtb | SAbDab (2026-04-24) | |
| Heavy Chain | IGHV9 | - | adp-ribosylating binary toxin binding subunit cdtb | SAbDab (2026-04-24) |
Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage
| Chains | Polymer | Molecular Function | Biological Process | Cellular Component |
|---|---|---|---|---|
| ADP-ribosylating binary toxin binding subunit CdtB | ||||
| BINTOXB/22 Fab light chain | - | - | - | |
| BINTOXB/22 Fab heavy chain | - | - | - |
InterPro: Protein Family Classification InterPro Database Homepage
| Chains | Accession | Name | Type |
|---|---|---|---|
| IPR035331 | Clostridial binary toxin B/anthrax toxin PA, domain 3 | Domain | |
| IPR011658 | PA14 domain | Domain | |
| IPR027439 | Protective antigen, heptamerisation domain | Domain | |
| IPR035088 | Protective antigen, Ca-binding domain | Domain | |
| IPR037149 | Protective antigen, heptamerisation domain superfamily | Homologous Superfamily | |
| IPR003896 | Bacterial exotoxin B | Family |














