Annotations: 8D9Z

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
C [auth D]		e8d9zD1	A: alpha bundles	X: RNase A-like	H: RNase A-like	T: RNase A-like	F:	ECOD (develop294)
B	Polyketide_cyc2	e8d9zB1	A: alpha bundles	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Polyketide_cyc2	ECOD (develop294)
A	Polyketide_cyc2	e8d9zA1	A: alpha bundles	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Polyketide_cyc2	ECOD (develop294)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
A	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	Heavy Chain	IGHV3	-	long neurotoxin 1	SAbDab (2026-03-20)
A	Light Chain	IGKV1	Kappa	long neurotoxin 1	SAbDab (2026-03-20)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C [auth D]	Long neurotoxin 1	channel regulator activity ion channel regulator activity molecular function regulator activity transporter regulator activity neurotransmitter receptor regulator activity acetylcholine receptor regulator activity molecular function inhibitor activity acetylcholine receptor inhibitor activity signaling receptor inhibitor activity signaling receptor regulator activity toxin activity	-	cellular anatomical structure extracellular region
B	Centi-LNX-D09 Fab heavy chain	-	-	-
A	Centi-LNX-D09 Fab light chain	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
C [auth D]	IPR018354	Snake toxin, conserved site	Conserved Site
C [auth D]	IPR045860	Snake toxin-like superfamily	Homologous Superfamily
C [auth D]	IPR054131	Snake toxin cobra-type	Family
C [auth D]	IPR003571	Snake three-finger toxin	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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.