7T5F | pdb_00007t5f

Botulinum neurotoxin Type B Light Chain complexed with nanobodies JLJ-G3 and JNE-B10

External Resource: Annotation

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

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
E	V-set_8	e7t5fE1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set_8	ECOD (1.6)
D [auth B]	V-set_8	e7t5fB1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set_8	ECOD (1.6)
F	V-set_8	e7t5fF1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set_8	ECOD (1.6)
C	V-set_8	e7t5fC1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set_8	ECOD (1.6)
B [auth D]	Peptidase_M27	e7t5fD1	A: mixed a+b and a/b	X: Zincin-like	H: Metalloproteases (zincins) catalytic domain (From Topology)	T: Metalloproteases (zincins) catalytic domain	F: Peptidase_M27	ECOD (1.6)
A	Peptidase_M27	e7t5fA1	A: mixed a+b and a/b	X: Zincin-like	H: Metalloproteases (zincins) catalytic domain (From Topology)	T: Metalloproteases (zincins) catalytic domain	F: Peptidase_M27	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
E	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
D [auth B]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
F	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
C	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
D [auth B], E	Heavy Chain	IGHV3	-	botulinum neurotoxin type b	SAbDab (2025-12-12)
C, F	Heavy Chain	IGHV1	-	botulinum neurotoxin type b	SAbDab (2025-12-12)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B [auth D]	PF01742	Clostridial neurotoxin zinc protease (Peptidase_M27)	Clostridial neurotoxin zinc protease	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
D [auth B], E	JNE-B10	-	-	-
C, F	JLJ-G3	-	-	-
A, B [auth D]	Botulinum neurotoxin type B	binding lipid binding macromolecule transmembrane transporter activity protein transporter activity protein transmembrane transporter activity transporter activity transmembrane transporter activity peptidase activity catalytic activity, acting on a protein metalloendopeptidase activity hydrolase activity metallopeptidase activity catalytic activity endopeptidase activity binding lipid binding macromolecule transmembrane transporter activity protein transporter activity protein transmembrane transporter activity transporter activity transmembrane transporter activity peptidase activity catalytic activity, acting on a protein metalloendopeptidase activity hydrolase activity metallopeptidase activity catalytic activity endopeptidase activity toxin activity cation binding transition metal ion binding zinc ion binding ion binding metal ion binding small molecule binding	proteolysis metabolic process cellular process primary metabolic process protein metabolic process macromolecule metabolic process	cellular anatomical structure membrane extracellular region host cell plasma membrane host cellular component host cell part host cell membrane other organism part host cell synapse host cell presynaptic membrane host intracellular part host cell cytoplasm host intracellular region host cell cytosol cellular anatomical structure membrane extracellular region host cell plasma membrane host cellular component host cell part host cell membrane other organism part host cell synapse host cell presynaptic membrane host intracellular part host cell cytoplasm host intracellular region host cell cytosol host cell cytoplasm part host intracellular membrane-bounded organelle host intracellular organelle host cell cytoplasmic vesicle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B [auth D]	IPR000395	Botulinum/Tetanus toxin, catalytic chain	Domain
A, B [auth D]	IPR012928	Clostridium neurotoxin, receptor binding N-terminal	Domain
A, B [auth D]	IPR012500	Clostridium neurotoxin, translocation	Domain
A, B [auth D]	IPR011065	Kunitz inhibitor STI-like superfamily	Homologous Superfamily
A, B [auth D]	IPR013104	Clostridium neurotoxin, receptor-binding C-terminal	Domain
A, B [auth D]	IPR013320	Concanavalin A-like lectin/glucanase domain superfamily	Homologous Superfamily
A, B [auth D]	IPR036248	Clostridium neurotoxin, translocation domain	Homologous Superfamily

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.