7U8M

Crystal structure of chimeric hemagglutinin cH15/3 in complex with broad protective antibodies 31.a.83 and FluA-20

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
SAbDab Antibody Annotation
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
J [auth I]	SCOP2 Family	Influenza hemagglutinin (stalk)	8107731	4003840	SCOP2 (2022-06-29)
J [auth I]	SCOP2 Superfamily	Influenza hemagglutinin (stalk)	8107732	3001616	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
C [auth L]	C1-set_4	e7u8mL2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_4	ECOD (1.6)
C [auth L]	V-set	e7u8mL1	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)
G [auth E]	C1-set_4	e7u8mE2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_4	ECOD (1.6)
G [auth E]	V-set	e7u8mE1	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]	C1-set_4	e7u8mJ1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_4	ECOD (1.6)
K [auth J]	V-set	e7u8mJ2	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)
M [auth N]	V-set_8	e7u8mN2	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)
M [auth N]	C1-set_1	e7u8mN1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_1	ECOD (1.6)
O [auth Q]	V-set_8	e7u8mQ2	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)
O [auth Q]	C1-set_1	e7u8mQ1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_1	ECOD (1.6)
Q [auth T]	V-set_8	e7u8mT1	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)
Q [auth T]	C1-set_1	e7u8mT2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_1	ECOD (1.6)
N [auth O]	C1-set_4	e7u8mO1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_4	ECOD (1.6)
N [auth O]	V-set	e7u8mO2	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)
P [auth R]	C1-set_4	e7u8mR1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_4	ECOD (1.6)
P [auth R]	V-set	e7u8mR2	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)
R [auth U]	C1-set_4	e7u8mU1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_4	ECOD (1.6)
R [auth U]	V-set	e7u8mU2	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)
A	Hemagglutinin_1st	e7u8mA1	A: beta sandwiches	X: jelly-roll	H: Viral protein domain (From Topology)	T: Viral protein domain	F: Hemagglutinin_1st	ECOD (1.6)
E [auth C]	Hemagglutinin_1st	e7u8mC1	A: beta sandwiches	X: jelly-roll	H: Viral protein domain (From Topology)	T: Viral protein domain	F: Hemagglutinin_1st	ECOD (1.6)
I [auth G]	Hemagglutinin_1st	e7u8mG1	A: beta sandwiches	X: jelly-roll	H: Viral protein domain (From Topology)	T: Viral protein domain	F: Hemagglutinin_1st	ECOD (1.6)
B	Hemagglutinin_2nd	e7u8mB1	A: alpha bundles	X: Hemagglutinin HA2 chain (From Topology)	H: Hemagglutinin HA2 chain (From Topology)	T: Hemagglutinin HA2 chain	F: Hemagglutinin_2nd	ECOD (1.6)
F [auth D]	Hemagglutinin_2nd	e7u8mD1	A: alpha bundles	X: Hemagglutinin HA2 chain (From Topology)	H: Hemagglutinin HA2 chain (From Topology)	T: Hemagglutinin HA2 chain	F: Hemagglutinin_2nd	ECOD (1.6)
J [auth I]	Hemagglutinin_2nd	e7u8mI1	A: alpha bundles	X: Hemagglutinin HA2 chain (From Topology)	H: Hemagglutinin HA2 chain (From Topology)	T: Hemagglutinin HA2 chain	F: Hemagglutinin_2nd	ECOD (1.6)
D [auth H]	V-set_8	e7u8mH2	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)
D [auth H]	C1-set_1	e7u8mH1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_1	ECOD (1.6)
H [auth F]	V-set_8	e7u8mF2	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)
H [auth F]	C1-set_1	e7u8mF1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_1	ECOD (1.6)
L [auth K]	V-set_8	e7u8mK2	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]	C1-set_1	e7u8mK1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_1	ECOD (1.6)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
C [auth L], G [auth E], K [auth J]	Light Chain	IGKV3	Kappa	hemagglutinin ha2 subunit	SAbDab (2024-09-27)
M [auth N], O [auth Q], Q [auth T]	Heavy Chain	IGHV4	-	hemagglutinin ha1 subunit	SAbDab (2024-09-27)
N [auth O], P [auth R], R [auth U]	Light Chain	IGKV1	Kappa	hemagglutinin ha1 subunit	SAbDab (2024-09-27)
D [auth H], H [auth F], L [auth K]	Heavy Chain	IGHV3	-	hemagglutinin ha2 subunit	SAbDab (2024-09-27)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, E [auth C], I [auth G]	PF00509	Haemagglutinin (Hemagglutinin)	Haemagglutinin	-	Family
B, F [auth D], J [auth I]	PF00509	Haemagglutinin (Hemagglutinin)	Haemagglutinin	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C [auth L], G [auth E], K [auth J]	Antibody 31.a.83 Fab light chain	-	-	-
M [auth N], O [auth Q], Q [auth T]	antibody FluA-20 Fab heavy chain	-	-	-
N [auth O], P [auth R], R [auth U]	antibody FluA-20 Fab light chain	-	-	-
A, E [auth C], I [auth G]	hemagglutinin HA1 subunit	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 import into cell receptor-mediated endocytosis of virus by host cell biological process involved in interspecies interaction between organisms transport viral life cycle establishment of localization vesicle-mediated transport biological process involved in interaction with host biological process involved in symbiotic interaction localization symbiont entry into host cell viral process fusion of virus membrane with host endosome membrane membrane fusion involved in viral entry into host cell import into cell receptor-mediated endocytosis of virus by host cell biological process involved in interspecies interaction between organisms transport viral life cycle establishment of localization vesicle-mediated transport biological process involved in interaction with host biological process involved in symbiotic interaction localization symbiont entry into host cell clathrin-dependent endocytosis symbiont entry into host cellular process clathrin-dependent endocytosis of virus by host cell receptor-mediated endocytosis endocytosis endocytosis involved in viral entry into host cell transport of virus membrane organization cellular component organization membrane fusion fusion of virus membrane with host plasma membrane cellular component organization or biogenesis virion attachment to host cell adhesion of symbiont to host cell adhesion of symbiont to host non-lytic viral release viral budding virion assembly exit from host cell viral budding from plasma membrane viral release from host cell	virion component viral membrane viral envelope host cell plasma membrane host cellular component host cell part host cell membrane cellular anatomical entity cell periphery apical part of cell membrane plasma membrane plasma membrane region apical plasma membrane virion component viral membrane viral envelope host cell plasma membrane host cellular component host cell part host cell membrane cellular anatomical entity cell periphery apical part of cell membrane plasma membrane plasma membrane region apical plasma membrane virion membrane
B, F [auth D], J [auth I]	hemagglutinin HA2 subunit	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 transport of virus	membrane cellular anatomical entity virion component virion membrane viral membrane viral envelope host cell plasma membrane host cellular component host cell part host cell membrane
D [auth H], H [auth F], L [auth K]	antibody 31.a.83 Fab heavy chain	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

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

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7U8M

Crystal structure of chimeric hemagglutinin cH15/3 in complex with broad protective antibodies 31.a.83 and FluA-20

External Resource: Annotation

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Domain Annotation: ECOD Classification ECOD Database Homepage

SAbDab Antibody Annotation SAbDab Database Homepage

Protein Family Annotation Pfam Database Homepage

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

InterPro: Protein Family Classification InterPro Database Homepage