8G3Q | pdb_00008g3q

N2 neuraminidase of A/Tanzania/205/2010 H3N2 in complex with 3 FNI17 Fab molecules

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
SAbDab Antibody 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)
F [auth C]	Glyco_hydro_43	e8g3qC1	A: a/b three-layered sandwiches	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Glyco_hydro_43	ECOD (v294.1)
H [auth I]	Glyco_hydro_43	e8g3qI1	A: a/b three-layered sandwiches	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Glyco_hydro_43	ECOD (v294.1)
J [auth A]	Glyco_hydro_43	e8g3qA1	A: a/b three-layered sandwiches	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Glyco_hydro_43	ECOD (v294.1)
E [auth B]	Glyco_hydro_43	e8g3qB1	A: a/b three-layered sandwiches	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Glyco_hydro_43	ECOD (v294.1)
I [auth L]	Glyco_hydro_43	e8g3qL1	A: a/b three-layered sandwiches	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Glyco_hydro_43	ECOD (v294.1)
G [auth D]	Glyco_hydro_43	e8g3qD1	A: a/b three-layered sandwiches	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Glyco_hydro_43	ECOD (v294.1)
A [auth E]	Glyco_hydro_43	e8g3qE1	A: a/b three-layered sandwiches	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Glyco_hydro_43	ECOD (v294.1)
B [auth G]	Glyco_hydro_43	e8g3qG1	A: a/b three-layered sandwiches	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Glyco_hydro_43	ECOD (v294.1)
D [auth F]	Glyco_hydro_43	e8g3qF1	A: a/b three-layered sandwiches	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Glyco_hydro_43	ECOD (v294.1)
C [auth H]	Glyco_hydro_43	e8g3qH1	A: a/b three-layered sandwiches	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Glyco_hydro_43	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
F [auth C]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
H [auth I]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
J [auth A]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
E [auth B]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
I [auth L]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
G [auth D]	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
F [auth C], H [auth I], J [auth A]	Heavy Chain	IGHV1	-	neuraminidase	SAbDab (2026-04-17)
E [auth B], G [auth D], I [auth L]	Light Chain	IGKV3	Kappa	neuraminidase	SAbDab (2026-04-17)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
F [auth C], H [auth I], J [auth A]	FNI17 Fab heavy chain	-	-	-
E [auth B], G [auth D], I [auth L]	FNI17 Fab light chain	-	-	-
A [auth E], B [auth G], C [auth H], D [auth F]	Neuraminidase	cation binding ion binding binding metal ion binding small molecule binding hydrolase activity, acting on glycosyl bonds alpha-sialidase activity hydrolase activity, hydrolyzing O-glycosyl compounds hydrolase activity exo-alpha-sialidase activity catalytic activity	carbohydrate metabolic process primary metabolic process metabolic process cellular process biological process involved in interspecies interaction between organisms non-lytic viral release viral budding viral life cycle biological process involved in interaction with host biological process involved in symbiotic interaction virion assembly exit from host cell viral process viral budding from plasma membrane carbohydrate metabolic process primary metabolic process metabolic process cellular process biological process involved in interspecies interaction between organisms non-lytic viral release viral budding viral life cycle biological process involved in interaction with host biological process involved in symbiotic interaction virion assembly exit from host cell viral process viral budding from plasma membrane viral release from host cell	cellular anatomical structure membrane host cell plasma membrane host cellular component host cell part host cell membrane other organism part virion component virion membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth E], B [auth G], C [auth H], D [auth F]	IPR001860	Glycoside hydrolase, family 34	Family
A [auth E], B [auth G], C [auth H], D [auth F]	IPR033654	Sialidase, Influenza viruses A/B	Domain
A [auth E], B [auth G], C [auth H], D [auth F]	IPR036278	Sialidase superfamily	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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.