9BEI | pdb_00009bei

Cryo-EM structure of synthetic claudin-4 complex with Clostridium perfringens enterotoxin C-terminal domain, sFab COP-2, and Nanobody

External Resource: Annotation

SAbDab Antibody Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
E [auth L]	Light Chain	IGKV1	Kappa	heat-labile enterotoxin b chain	SAbDab (2025-12-19)
D [auth K]	Heavy Chain	IGHV1	-	-	SAbDab (2025-12-19)
C [auth H]	Heavy Chain	IGHV3	-	heat-labile enterotoxin b chain	SAbDab (2025-12-19)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
E [auth L]	COP-2 Fab Light chain	-	-	-
D [auth K]	Anti-fab nanobody	-	-	-
C [auth H]	COP-2 Fab Heavy chain	-	-	-
B	Heat-labile enterotoxin B chain	toxin activity	-	cellular anatomical structure extracellular region
A	Claudin-4	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B	IPR003897	Clostridium enterotoxin	Family

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.