Annotations: 6PZZ

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Sialidases	8093684	3001607	SCOP2B (2022-06-29)
D [auth B]	SCOP2 Family	Sialidases (neuraminidases)	8093683	4002683	SCOP2 (2022-06-29)
D [auth B]	SCOP2 Superfamily	Sialidases	8093684	3001607	SCOP2 (2022-06-29)
G [auth C]	SCOP2B Superfamily	Sialidases	8093684	3001607	SCOP2B (2022-06-29)
J [auth D]	SCOP2B Superfamily	Sialidases	8093684	3001607	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)
A	Neur	e6pzzA1	A: beta duplicates or obligate multimers	X: beta-propeller-like	H: beta-propeller	T: 6-bladed	F: Neur	ECOD (1.6)
D [auth B]	Neur	e6pzzB1	A: beta duplicates or obligate multimers	X: beta-propeller-like	H: beta-propeller	T: 6-bladed	F: Neur	ECOD (1.6)
G [auth C]	Neur	e6pzzC1	A: beta duplicates or obligate multimers	X: beta-propeller-like	H: beta-propeller	T: 6-bladed	F: Neur	ECOD (1.6)
J [auth D]	Neur	e6pzzD1	A: beta duplicates or obligate multimers	X: beta-propeller-like	H: beta-propeller	T: 6-bladed	F: Neur	ECOD (1.6)
B [auth L]	V-set	e6pzzL1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set	ECOD (1.6)
E	V-set	e6pzzE1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set	ECOD (1.6)
H [auth G]	V-set	e6pzzG1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set	ECOD (1.6)
K [auth J]	V-set	e6pzzJ1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set	ECOD (1.6)
C [auth H]	V-set_8	e6pzzH1	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	e6pzzF1	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)
I	V-set_8	e6pzzI1	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)
L [auth K]	V-set_8	e6pzzK1	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)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.120.10.10	Mainly Beta	6 Propeller	Neuraminidase		CATH (utative)
D [auth B]	2.120.10.10	Mainly Beta	6 Propeller	Neuraminidase		CATH (utative)
G [auth C]	2.120.10.10	Mainly Beta	6 Propeller	Neuraminidase		CATH (utative)
J [auth D]	2.120.10.10	Mainly Beta	6 Propeller	Neuraminidase		CATH (utative)

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
B [auth L], E, H [auth G], K [auth J]	Fab NA-80, anti-N9	L-KAPPA	Homo sapiens (human)	IGKV1-3901, IGKV1D-3901, IGKJ301, IGKC01	V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA	IG	FAB-GAMMA-1_KAPPA	IMGT (202541-0)
C [auth H], F, I, L [auth K]	Fab NA-80, anti-N9	VH-CH1	Homo sapiens (human)	IGHV1-1801, IGHV1-1804, IGHJ401, IGHJ402, IGHJ403, IGHG103, IGHG108, IGHG106	V-DOMAIN VH, C-DOMAIN CH1	IG	FAB-GAMMA-1_KAPPA	IMGT (202541-0)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B [auth L], E, H [auth G], K [auth J]	Light Chain	IGKV1	Kappa	neuraminidase	SAbDab (2025-10-24)
C [auth H], F, I, L [auth K]	Heavy Chain	IGHV1	-	neuraminidase	SAbDab (2025-10-24)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, D [auth B], G [auth C], J [auth D]	PF00064	Neuraminidase (Neur)	Neuraminidase	-	Repeat

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, D [auth B], G [auth C], J [auth D]	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
B [auth L], E, H [auth G], K [auth J]	NA-80 fragment antibody light chain	-	-	-
C [auth H], F, I, L [auth K]	NA-80 fragment antibody heavy chain	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, D [auth B], G [auth C], J [auth D]	IPR001860	Glycoside hydrolase, family 34	Family
A, D [auth B], G [auth C], J [auth D]	IPR033654	Sialidase, Influenza viruses A/B	Domain
A, D [auth B], G [auth C], J [auth D]	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.