6HJQ | pdb_00006hjq

Structure of Full-length Influenza Hemagglutinin (A/duck/Alberta/35/76) in complex with FISW84 Fab Fragment

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
IMGT Antibody Annotation
SAbDab Antibody Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Membrane Protein Annotation: OPM
Membrane Protein Annotation: mpstruc

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2 Family	Influenza hemagglutinin (stalk)	8087937	4003840	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	Influenza hemagglutinin (stalk)	8087938	3001616	SCOP2 (2022-06-29)
L [auth F]	SCOP2B Superfamily	Influenza hemagglutinin (stalk)	8087938	3001616	SCOP2B (2022-06-29)
K [auth D]	SCOP2B Superfamily	Influenza hemagglutinin (stalk)	8087938	3001616	SCOP2B (2022-06-29)
J [auth E]	SCOP2B Superfamily	Influenza hemagglutinin domain-like	8087728	3001342	SCOP2B (2022-06-29)
I [auth C]	SCOP2B Superfamily	Influenza hemagglutinin domain-like	8087728	3001342	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Influenza hemagglutinin domain-like	8087728	3001342	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)
B		e6hjqB01	A: Rossmann-like	X: Rossmann-related	H: FAD/NAD(P)-binding domain	T: CatAgl_D1	F:	ECOD (20:10:01)
F [auth K]		e6hjqK1	A: L-aspartase middle domain-like	X: gp11/gp12 receptor-binding domain	H: gp11/gp12 receptor-binding domain	T: OB_NTP_bind	F:	ECOD (20:10:01)
E [auth I]		e6hjqI1	A: L-aspartase middle domain-like	X: gp11/gp12 receptor-binding domain	H: gp11/gp12 receptor-binding domain	T: OB_NTP_bind	F:	ECOD (20:10:01)
C [auth G]		e6hjqG1	A: L-aspartase middle domain-like	X: gp11/gp12 receptor-binding domain	H: gp11/gp12 receptor-binding domain	T: OB_NTP_bind	F:	ECOD (20:10:01)
D [auth H]		e6hjqH1	A: L-aspartase middle domain-like	X: gp11/gp12 receptor-binding domain	H: gp11/gp12 receptor-binding domain	T: OB_NTP_bind	F:	ECOD (20:10:01)
H [auth L]		e6hjqL1	A: L-aspartase middle domain-like	X: gp11/gp12 receptor-binding domain	H: gp11/gp12 receptor-binding domain	T: OB_NTP_bind	F:	ECOD (20:10:01)
G [auth J]		e6hjqJ1	A: L-aspartase middle domain-like	X: gp11/gp12 receptor-binding domain	H: gp11/gp12 receptor-binding domain	T: OB_NTP_bind	F:	ECOD (20:10:01)
J [auth E]		e6hjqE1	A: L-aspartase middle domain-like	X: gp11/gp12 receptor-binding domain	H: gp11/gp12 receptor-binding domain	T: OB_NTP_bind	F:	ECOD (20:10:01)
I [auth C]		e6hjqC1	A: L-aspartase middle domain-like	X: gp11/gp12 receptor-binding domain	H: gp11/gp12 receptor-binding domain	T: OB_NTP_bind	F:	ECOD (20:10:01)
A		e6hjqA1	A: L-aspartase middle domain-like	X: gp11/gp12 receptor-binding domain	H: gp11/gp12 receptor-binding domain	T: OB_NTP_bind	F:	ECOD (20:10:01)

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
C [auth G], E [auth I], F [auth K]	Fab FISW84	VH-CH1	Homo sapiens (human)	IGHV3-2301, IGHV3-23D01, IGHJ101, IGHG103	V-DOMAIN VH, C-DOMAIN CH1	IG	FAB-GAMMA-1_KAPPA	IMGT (202609-0)
D [auth H], G [auth J], H [auth L]	Fab FISW84	L-KAPPA	Homo sapiens (human)	IGKV3-1501, IGKV3D-1501, IGKJ501, IGKC01	V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA	IG	FAB-GAMMA-1_KAPPA	IMGT (202609-0)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
C [auth G], E [auth I], F [auth K]			-	hemagglutinin \| hemagglutinin	undefined (undefined)
D [auth H], G [auth J], H [auth L]	Light Chain	IGKV3	Kappa	hemagglutinin \| hemagglutinin	SAbDab (2026-03-13)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B, K [auth D], L [auth F]	Hemagglutinin	host cell surface binding binding host cell surface receptor binding	viral process fusion of virus membrane with host endosome membrane membrane fusion involved in viral entry into host cell membrane organization cellular component organization membrane fusion fusion of virus membrane with host plasma membrane cellular process cellular component organization or biogenesis virion attachment to host cell biological process involved in interspecies interaction between organisms adhesion of symbiont to host cell viral life cycle adhesion of symbiont to host viral process fusion of virus membrane with host endosome membrane membrane fusion involved in viral entry into host cell membrane organization cellular component organization membrane fusion fusion of virus membrane with host plasma membrane cellular process cellular component organization or biogenesis virion attachment to host cell biological process involved in interspecies interaction between organisms adhesion of symbiont to host cell viral life cycle adhesion of symbiont to host biological process involved in interaction with host biological process involved in symbiotic interaction non-lytic viral release viral budding virion assembly exit from host cell viral budding from plasma membrane viral release from host cell import into cell receptor-mediated endocytosis of virus by host cell transport establishment of localization vesicle-mediated transport localization symbiont entry into host cell clathrin-dependent endocytosis symbiont entry into host clathrin-dependent endocytosis of virus by host cell receptor-mediated endocytosis endocytosis endocytosis involved in viral entry into host cell	cellular anatomical structure membrane virion component virion membrane viral membrane viral envelope host cell plasma membrane host cellular component host cell part host cell membrane other organism part
C [auth G], E [auth I], F [auth K]	Heavy chain of FISW84 Fab	-	-	-
D [auth H], G [auth J], H [auth L]	Light chain of FISW84 Fab	-	-	-
A, I [auth C], J [auth E]	Hemagglutinin	host cell surface binding binding host cell surface receptor binding	viral process fusion of virus membrane with host endosome membrane membrane fusion involved in viral entry into host cell membrane organization cellular component organization membrane fusion fusion of virus membrane with host plasma membrane cellular process cellular component organization or biogenesis virion attachment to host cell biological process involved in interspecies interaction between organisms adhesion of symbiont to host cell viral life cycle adhesion of symbiont to host viral process fusion of virus membrane with host endosome membrane membrane fusion involved in viral entry into host cell membrane organization cellular component organization membrane fusion fusion of virus membrane with host plasma membrane cellular process cellular component organization or biogenesis virion attachment to host cell biological process involved in interspecies interaction between organisms adhesion of symbiont to host cell viral life cycle adhesion of symbiont to host biological process involved in interaction with host biological process involved in symbiotic interaction non-lytic viral release viral budding virion assembly exit from host cell viral budding from plasma membrane viral release from host cell import into cell receptor-mediated endocytosis of virus by host cell transport establishment of localization vesicle-mediated transport localization symbiont entry into host cell clathrin-dependent endocytosis symbiont entry into host clathrin-dependent endocytosis of virus by host cell receptor-mediated endocytosis endocytosis endocytosis involved in viral entry into host cell	cellular anatomical structure membrane virion component virion membrane viral membrane viral envelope host cell plasma membrane host cellular component host cell part host cell membrane other organism part

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B, K [auth D], L [auth F]	IPR001364	Haemagglutinin, influenzavirus A/B	Family
B, K [auth D], L [auth F]	IPR008980	Viral capsid/haemagglutinin protein	Homologous Superfamily
B, K [auth D], L [auth F]	IPR000149	Haemagglutinin, influenzavirus A	Family
B, K [auth D], L [auth F]	IPR013828	Haemagglutinin, HA1 chain, alpha/beta domain superfamily	Homologous Superfamily
A, I [auth C], J [auth E]	IPR001364	Haemagglutinin, influenzavirus A/B	Family
A, I [auth C], J [auth E]	IPR008980	Viral capsid/haemagglutinin protein	Homologous Superfamily
A, I [auth C], J [auth E]	IPR000149	Haemagglutinin, influenzavirus A	Family
A, I [auth C], J [auth E]	IPR013828	Haemagglutinin, HA1 chain, alpha/beta domain superfamily	Homologous Superfamily

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A, B, I [auth C], J [auth E], K [auth D] A, B, I [auth C], J [auth E], K [auth D], L [auth F]	OPM	Transmembrane	Bitopic proteins	Viral membrane fusion glycoprotein	Hemagglutinin

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A, B, I [auth C], J [auth E], K [auth D] A, B, I [auth C], J [auth E], K [auth D], L [auth F]	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Glycoproteins	Influenza Hemagglutinin, full length

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.