Annotations: 7SO5

Novel structural insights for a pair of monoclonal antibodies recognizing non-overlapping epitopes of the glucosyltransferase domain of Clostridium difficile toxin B

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
SAbDab Antibody Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
C [auth A]	SCOP2B Superfamily	Nucleotide-diphospho-sugar transferases	8033597	3000077	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
C [auth A]	WD40	e7so5A1	A: alpha arrays	X: putative RnfG subunit of electron transport complex	H: putative RnfG subunit of electron transport complex	T: Aspartate/ornithine carbamoyltransferase	F: WD40	ECOD (v295.2)
B [auth L]	WD40	e7so5L1	A: alpha arrays	X: putative RnfG subunit of electron transport complex	H: putative RnfG subunit of electron transport complex	T: Aspartate/ornithine carbamoyltransferase	F: WD40	ECOD (v295.2)
A [auth H]	WD40	e7so5H1	A: alpha arrays	X: putative RnfG subunit of electron transport complex	H: putative RnfG subunit of electron transport complex	T: Aspartate/ornithine carbamoyltransferase	F: WD40	ECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B [auth L]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
A [auth H]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B [auth L]	Light Chain	IGKV2	Kappa	toxin b	SAbDab (2026-10-23)
A [auth H]	Heavy Chain	IGHV4	-	toxin b	SAbDab (2026-10-23)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C [auth A]	Toxin B	glycosyltransferase activity transferase activity glucosyltransferase activity hexosyltransferase activity catalytic activity	symbiont-mediated perturbation of host actin cytoskeleton symbiont-mediated disruption of host anatomical structure biological process involved in interspecies interaction between organisms symbiont-mediated perturbation of host actin cytoskeleton via filamentous actin depolymerization symbiont-mediated perturbation of host cytoskeleton disruption of anatomical structure in another organism symbiont-mediated disruption of host cellular anatomical structure	cellular anatomical structure extracellular region host intracellular membrane-bounded organelle host cellular component host intracellular part host cell membrane other organism part host cell cytoplasm part host intracellular organelle host cell endosome membrane host cell cytoplasm host cell part host cell endosome host intracellular region cellular anatomical structure extracellular region host intracellular membrane-bounded organelle host cellular component host intracellular part host cell membrane other organism part host cell cytoplasm part host intracellular organelle host cell endosome membrane host cell cytoplasm host cell part host cell endosome host intracellular region host cell plasma membrane host cell cytosol
B [auth L]	Fab B2 LC	-	-	-
A [auth H]	Fab B2 HC	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
C [auth A]	IPR038383	CGT/MARTX, cysteine protease (CPD) domain superfamily	Homologous Superfamily
C [auth A]	IPR024772	TcdA/TcdB toxin, N-terminal helical domain	Domain
C [auth A]	IPR020974	CGT/MARTX, cysteine protease (CPD) domain	Domain
C [auth A]	IPR024769	TcdA/TcdB toxin, pore forming domain	Domain
C [auth A]	IPR029044	Nucleotide-diphospho-sugar transferases	Homologous Superfamily
C [auth A]	IPR061976	TcsH, C-terminal DRBD	Domain
C [auth A]	IPR024770	TcdA/TcdB toxin, catalytic glycosyltransferase domain	Domain
C [auth A]	IPR018337	Cell wall/choline-binding repeat	Repeat