5W08 | pdb_00005w08

A/Texas/50/2012(H3N2) Influenza hemagglutinin in complex with K03.12 Fab

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
IMGT Antibody Annotation
SAbDab Antibody Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
H	d5w08h2	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	automated matches	Human (Homo sapiens ) [TaxId: 9606 ], Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
H	d5w08h1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	Human (Homo sapiens ) [TaxId: 9606 ], Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
J	d5w08j2	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	automated matches	Human (Homo sapiens ) [TaxId: 9606 ], Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
J	d5w08j1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	Human (Homo sapiens ) [TaxId: 9606 ], Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
L	d5w08l2	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	automated matches	Human (Homo sapiens ) [TaxId: 9606 ], Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
L	d5w08l1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	Human (Homo sapiens ) [TaxId: 9606 ], Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
N	d5w08n2	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	automated matches	Human (Homo sapiens ) [TaxId: 9606 ], Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
N	d5w08n1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	Human (Homo sapiens ) [TaxId: 9606 ], Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
P	d5w08p2	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	automated matches	Human (Homo sapiens ) [TaxId: 9606 ], Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
P	d5w08p1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	Human (Homo sapiens ) [TaxId: 9606 ], Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
R	d5w08r2	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	automated matches	Human (Homo sapiens ) [TaxId: 9606 ], Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
R	d5w08r1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	Human (Homo sapiens ) [TaxId: 9606 ], Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
G	d5w08g_	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	Human (Homo sapiens ) [TaxId: 9606 ], Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
I	d5w08i_	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	Human (Homo sapiens ) [TaxId: 9606 ], Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
K	d5w08k_	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	Human (Homo sapiens ) [TaxId: 9606 ], Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
M	d5w08m_	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	Human (Homo sapiens ) [TaxId: 9606 ], Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
O	d5w08o_	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	Human (Homo sapiens ) [TaxId: 9606 ], Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
Q	d5w08q_	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	Human (Homo sapiens ) [TaxId: 9606 ], Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
A	d5w08a_	All beta proteins	Viral protein domain	Viral protein domain	Influenza hemagglutinin headpiece	automated matches	(Influenza A virus (A/Texas/50/2012(H3N2)) ) [TaxId: 1321009 ],	SCOPe (2.08)
B	d5w08b_	All beta proteins	Viral protein domain	Viral protein domain	Influenza hemagglutinin headpiece	automated matches	(Influenza A virus (A/Texas/50/2012(H3N2)) ) [TaxId: 1321009 ],	SCOPe (2.08)
C	d5w08c_	All beta proteins	Viral protein domain	Viral protein domain	Influenza hemagglutinin headpiece	automated matches	(Influenza A virus (A/Texas/50/2012(H3N2)) ) [TaxId: 1321009 ],	SCOPe (2.08)
D	d5w08d_	All beta proteins	Viral protein domain	Viral protein domain	Influenza hemagglutinin headpiece	automated matches	(Influenza A virus (A/Texas/50/2012(H3N2)) ) [TaxId: 1321009 ],	SCOPe (2.08)
E	d5w08e_	All beta proteins	Viral protein domain	Viral protein domain	Influenza hemagglutinin headpiece	automated matches	(Influenza A virus (A/Texas/50/2012(H3N2)) ) [TaxId: 1321009 ],	SCOPe (2.08)
F	d5w08f_	All beta proteins	Viral protein domain	Viral protein domain	Influenza hemagglutinin headpiece	automated matches	(Influenza A virus (A/Texas/50/2012(H3N2)) ) [TaxId: 1321009 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Influenza hemagglutinin domain-like	8087886	3001342	SCOP2B (2022-06-29)
B	SCOP2 Family	Influenza hemagglutinin headpiece	8087885	4002506	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	Influenza hemagglutinin domain-like	8087886	3001342	SCOP2 (2022-06-29)
C	SCOP2B Superfamily	Influenza hemagglutinin domain-like	8087886	3001342	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	Influenza hemagglutinin domain-like	8087886	3001342	SCOP2B (2022-06-29)
E	SCOP2B Superfamily	Influenza hemagglutinin domain-like	8087886	3001342	SCOP2B (2022-06-29)
F	SCOP2B Superfamily	Influenza hemagglutinin domain-like	8087886	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)
H	OB_NTP_bind	e5w08H1	A: beta barrels	X: FAD-linked reductases, C-terminal domain-like	H: FAD-linked reductases-C	T: FAD-linked reductases-C	F: OB_NTP_bind	ECOD (v294.2)
J	CTP_transf_like	e5w08J1	A: beta barrels	X: FAD-linked reductases, C-terminal domain-like	H: FAD-linked reductases-C	T: FAD-linked reductases-C	F: CTP_transf_like	ECOD (v294.2)
L	OB_NTP_bind	e5w08L1	A: beta barrels	X: FAD-linked reductases, C-terminal domain-like	H: FAD-linked reductases-C	T: FAD-linked reductases-C	F: OB_NTP_bind	ECOD (v294.2)
N	OB_NTP_bind	e5w08N1	A: beta barrels	X: FAD-linked reductases, C-terminal domain-like	H: FAD-linked reductases-C	T: FAD-linked reductases-C	F: OB_NTP_bind	ECOD (v294.2)
P	OB_NTP_bind	e5w08P1	A: beta barrels	X: FAD-linked reductases, C-terminal domain-like	H: FAD-linked reductases-C	T: FAD-linked reductases-C	F: OB_NTP_bind	ECOD (v294.2)
R	OB_NTP_bind	e5w08R1	A: beta barrels	X: FAD-linked reductases, C-terminal domain-like	H: FAD-linked reductases-C	T: FAD-linked reductases-C	F: OB_NTP_bind	ECOD (v294.2)
G	OB_NTP_bind	e5w08G1	A: beta barrels	X: FAD-linked reductases, C-terminal domain-like	H: FAD-linked reductases-C	T: FAD-linked reductases-C	F: OB_NTP_bind	ECOD (v294.2)
I	CTP_transf_like	e5w08I1	A: beta barrels	X: FAD-linked reductases, C-terminal domain-like	H: FAD-linked reductases-C	T: FAD-linked reductases-C	F: CTP_transf_like	ECOD (v294.2)
K	OB_NTP_bind	e5w08K1	A: beta barrels	X: FAD-linked reductases, C-terminal domain-like	H: FAD-linked reductases-C	T: FAD-linked reductases-C	F: OB_NTP_bind	ECOD (v294.2)
M	OB_NTP_bind	e5w08M1	A: beta barrels	X: FAD-linked reductases, C-terminal domain-like	H: FAD-linked reductases-C	T: FAD-linked reductases-C	F: OB_NTP_bind	ECOD (v294.2)
O	OB_NTP_bind	e5w08O1	A: beta barrels	X: FAD-linked reductases, C-terminal domain-like	H: FAD-linked reductases-C	T: FAD-linked reductases-C	F: OB_NTP_bind	ECOD (v294.2)
Q	OB_NTP_bind	e5w08Q1	A: beta barrels	X: FAD-linked reductases, C-terminal domain-like	H: FAD-linked reductases-C	T: FAD-linked reductases-C	F: OB_NTP_bind	ECOD (v294.2)
A	OB_NTP_bind	e5w08A1	A: beta barrels	X: FAD-linked reductases, C-terminal domain-like	H: FAD-linked reductases-C	T: FAD-linked reductases-C	F: OB_NTP_bind	ECOD (v294.2)
B	CTP_transf_like	e5w08B1	A: beta barrels	X: FAD-linked reductases, C-terminal domain-like	H: FAD-linked reductases-C	T: FAD-linked reductases-C	F: CTP_transf_like	ECOD (v294.2)
C	OB_NTP_bind	e5w08C1	A: beta barrels	X: FAD-linked reductases, C-terminal domain-like	H: FAD-linked reductases-C	T: FAD-linked reductases-C	F: OB_NTP_bind	ECOD (v294.2)
D	OB_NTP_bind	e5w08D1	A: beta barrels	X: FAD-linked reductases, C-terminal domain-like	H: FAD-linked reductases-C	T: FAD-linked reductases-C	F: OB_NTP_bind	ECOD (v294.2)
E	OB_NTP_bind	e5w08E1	A: beta barrels	X: FAD-linked reductases, C-terminal domain-like	H: FAD-linked reductases-C	T: FAD-linked reductases-C	F: OB_NTP_bind	ECOD (v294.2)
F	OB_NTP_bind	e5w08F1	A: beta barrels	X: FAD-linked reductases, C-terminal domain-like	H: FAD-linked reductases-C	T: FAD-linked reductases-C	F: OB_NTP_bind	ECOD (v294.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
H	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
J	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
L	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
N	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
P	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
R	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
G	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
I	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
K	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
M	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
O	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
Q	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
A	2.10.77.10	Mainly Beta	Ribbon	Hemagglutinin	Chain A, domain 2	CATH (4.3.0)
A	3.90.209.20	Alpha Beta	Alpha-Beta Complex	Hemagglutinin (Ha1 Chain)	Chain: A	CATH (4.3.0)
B	2.10.77.10	Mainly Beta	Ribbon	Hemagglutinin	Chain A, domain 2	CATH (4.3.0)
B	3.90.209.20	Alpha Beta	Alpha-Beta Complex	Hemagglutinin (Ha1 Chain)	Chain: A	CATH (4.3.0)
C	2.10.77.10	Mainly Beta	Ribbon	Hemagglutinin	Chain A, domain 2	CATH (4.3.0)
C	3.90.209.20	Alpha Beta	Alpha-Beta Complex	Hemagglutinin (Ha1 Chain)	Chain: A	CATH (4.3.0)
D	2.10.77.10	Mainly Beta	Ribbon	Hemagglutinin	Chain A, domain 2	CATH (4.3.0)
D	3.90.209.20	Alpha Beta	Alpha-Beta Complex	Hemagglutinin (Ha1 Chain)	Chain: A	CATH (4.3.0)
E	2.10.77.10	Mainly Beta	Ribbon	Hemagglutinin	Chain A, domain 2	CATH (4.3.0)
E	3.90.209.20	Alpha Beta	Alpha-Beta Complex	Hemagglutinin (Ha1 Chain)	Chain: A	CATH (4.3.0)
F	2.10.77.10	Mainly Beta	Ribbon	Hemagglutinin	Chain A, domain 2	CATH (4.3.0)
F	3.90.209.20	Alpha Beta	Alpha-Beta Complex	Hemagglutinin (Ha1 Chain)	Chain: A	CATH (4.3.0)

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
H, J, L, N, P H, J, L, N, P, R	Fab K03.12	L-LAMBDA	Homo sapiens (human)	IGLV2-2301, IGLJ201, IGLJ301, IGLC201, IGLC202, IGLC304	V-DOMAIN V-LAMBDA, C-DOMAIN C-LAMBDA	IG	FAB-GAMMA-1_LAMBDA	IMGT (202618-0)
G, I, K, M, O G, I, K, M, O, Q	Fab K03.12	VH-CH1	Homo sapiens (human)	IGHV1-202, IGHJ601, IGHG1*03	V-DOMAIN VH, C-DOMAIN CH1	IG	FAB-GAMMA-1_LAMBDA	IMGT (202618-0)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
H, J, L, N, P H, J, L, N, P, R	Light Chain	IGLV2	Lambda	hemagglutinin ha1	SAbDab (2026-05-15)
G, I, K, M, O G, I, K, M, O, Q	Heavy Chain	IGHV1	-	hemagglutinin ha1	SAbDab (2026-05-15)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
H, J, L, N, P H, J, L, N, P, R	K03.12 antibody light chain	-	response to stimulus immune response immune system process adaptive immune response	cell periphery cellular anatomical structure plasma membrane membrane protein-containing complex immunoglobulin complex extracellular region
G, I, K, M, O G, I, K, M, O, Q	K03.12 antibody heavy chain	-	response to stimulus immune response immune system process adaptive immune response	cell periphery cellular anatomical structure plasma membrane membrane protein-containing complex immunoglobulin complex extracellular region
A, B, C, D, E A, B, C, D, E, F	Hemagglutinin HA1	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
H, J, L, N, P H, J, L, N, P, R	IPR003597	Immunoglobulin C1-set	Domain
H, J, L, N, P H, J, L, N, P, R	IPR050150	Immunoglobulin Variable Light Chain	Family
H, J, L, N, P H, J, L, N, P, R	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
H, J, L, N, P H, J, L, N, P, R	IPR036179	Immunoglobulin-like domain superfamily	Homologous Superfamily
H, J, L, N, P H, J, L, N, P, R	IPR013106	Immunoglobulin V-set domain	Domain
H, J, L, N, P H, J, L, N, P, R	IPR003599	Immunoglobulin domain subtype	Domain
H, J, L, N, P H, J, L, N, P, R	IPR007110	Immunoglobulin-like domain	Domain
H, J, L, N, P H, J, L, N, P, R	IPR003006	Immunoglobulin/major histocompatibility complex, conserved site	Conserved Site
G, I, K, M, O G, I, K, M, O, Q	IPR003597	Immunoglobulin C1-set	Domain
G, I, K, M, O G, I, K, M, O, Q	IPR050199	Immunoglobulin Heavy Variable	Family
G, I, K, M, O G, I, K, M, O, Q	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
G, I, K, M, O G, I, K, M, O, Q	IPR036179	Immunoglobulin-like domain superfamily	Homologous Superfamily
G, I, K, M, O G, I, K, M, O, Q	IPR013106	Immunoglobulin V-set domain	Domain
G, I, K, M, O G, I, K, M, O, Q	IPR003599	Immunoglobulin domain subtype	Domain
G, I, K, M, O G, I, K, M, O, Q	IPR007110	Immunoglobulin-like domain	Domain
G, I, K, M, O G, I, K, M, O, Q	IPR003006	Immunoglobulin/major histocompatibility complex, conserved site	Conserved Site
A, B, C, D, E A, B, C, D, E, F	IPR001364	Haemagglutinin, influenzavirus A/B	Family
A, B, C, D, E A, B, C, D, E, F	IPR008980	Viral capsid/haemagglutinin protein	Homologous Superfamily
A, B, C, D, E A, B, C, D, E, F	IPR000149	Haemagglutinin, influenzavirus A	Family
A, B, C, D, E A, B, C, D, E, F	IPR013828	Haemagglutinin, HA1 chain, alpha/beta domain superfamily	Homologous Superfamily

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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.