3K3Q

Crystal Structure of a Llama Antibody complexed with the C. Botulinum Neurotoxin Serotype A Catalytic Domain

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
IMGT Antibody Annotation
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d3k3qa_	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	(Lama glama ) [TaxId: 9844 ],	SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PF07686	e3k3qA1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: PF07686	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
B	3.90.1240.10	Alpha Beta	Alpha-Beta Complex	Zincin-like	Metalloproteases ("zincins"), catalytic domain like	CATH (4.3.0)
C	1.20.58.540	Mainly Alpha	Up-down Bundle	Methane Monooxygenase Hydroxylase	Chain G, domain 1	CATH (4.3.0)
C	4.10.1280.10	Few Secondary Structures	Irregular	Metalloproteases ("zincins"), catalytic domain fold	Clostridium neurotoxins	CATH (4.3.0)

IMGT Antibody Annotation IMGT Database Homepage

Chain	Protein Name	Description	Organism Name	Gene Allele Name(s)	Domain Name(s)	Receptor Type	Receptor Description	Provenance Source
A	Llama heavy chain VH domain Aa1	VH	Lama glama (llama)	IGHV3S401, IGHJ501	V-DOMAIN VH	IG	(VH)	IMGT (202416-0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
B	PF01742	Clostridial neurotoxin zinc protease (Peptidase_M27)	Clostridial neurotoxin zinc protease	-	Family
C	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
A	llama Aa1 VHH domain	-	-	-
B	Botulinum neurotoxin type A	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 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 binding metal ion binding small molecule binding	organic substance metabolic process organonitrogen compound metabolic process proteolysis metabolic process primary metabolic process protein metabolic process macromolecule metabolic process	membrane cellular anatomical entity extracellular region host cell plasma membrane host cellular component host cell part host cell membrane host cell synapse host cell presynaptic membrane host intracellular part host cell cytoplasm host intracellular region host cell cytosol host cell cytoplasm part membrane cellular anatomical entity extracellular region host cell plasma membrane host cellular component host cell part host cell membrane host cell synapse host cell presynaptic membrane host intracellular part host cell cytoplasm host intracellular region host cell cytosol host cell cytoplasm part host cell cytoplasmic vesicle host intracellular membrane-bounded organelle host intracellular organelle
C	Botulinum neurotoxin type A	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 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 binding metal ion binding small molecule binding	organic substance metabolic process organonitrogen compound metabolic process proteolysis metabolic process primary metabolic process protein metabolic process macromolecule metabolic process	membrane cellular anatomical entity extracellular region host cell plasma membrane host cellular component host cell part host cell membrane host cell synapse host cell presynaptic membrane host intracellular part host cell cytoplasm host intracellular region host cell cytosol host cell cytoplasm part membrane cellular anatomical entity extracellular region host cell plasma membrane host cellular component host cell part host cell membrane host cell synapse host cell presynaptic membrane host intracellular part host cell cytoplasm host intracellular region host cell cytosol host cell cytoplasm part host cell cytoplasmic vesicle host intracellular membrane-bounded organelle host intracellular organelle

InterPro: Protein Family Classification InterPro Database Homepage

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

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.