Annotations: 4EEF

Crystal structure of the designed inhibitor protein F-HB80.4 in complex with the 1918 influenza virus hemagglutinin.

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
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)
E	SCOP2B Superfamily	Influenza hemagglutinin domain-like	8087726	3001342	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Influenza hemagglutinin domain-like	8087726	3001342	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Influenza hemagglutinin domain-like	8087726	3001342	SCOP2B (2022-06-29)
F	SCOP2B Superfamily	Influenza hemagglutinin (stalk)	8087942	3001616	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	Influenza hemagglutinin (stalk)	8087942	3001616	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Influenza hemagglutinin (stalk)	8087942	3001616	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)
E	14-3-3	e4eefE1	A: alpha arrays	X: beta-Grasp	H: Ubiquitin-related	T: Ubiquitin-like	F: 14-3-3	ECOD (v295.2)
C	14-3-3	e4eefC1	A: alpha arrays	X: beta-Grasp	H: Ubiquitin-related	T: Ubiquitin-like	F: 14-3-3	ECOD (v295.2)
A	HSP90,HATPase_c_3	e4eefA1	A: alpha arrays	X: Flavodoxin-like	H: SH3	T: SH3	F: HSP90,HATPase_c_3	ECOD (v295.2)
F	Med6	e4eefF1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: Med6	ECOD (v295.2)
D	Med6	e4eefD1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: Med6	ECOD (v295.2)
B	Med6	e4eefB1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: Med6	ECOD (v295.2)
I	SNase	e4eefI1	A: alpha arrays	X: Alpha helical domain of ribonucleotide reductases	H: Alpha helical domain of ribonucleotide reductases	T: Alpha helical domain of ribonucleotide reductases	F: SNase	ECOD (v295.2)
H	SNase	e4eefH1	A: alpha arrays	X: Alpha helical domain of ribonucleotide reductases	H: Alpha helical domain of ribonucleotide reductases	T: Alpha helical domain of ribonucleotide reductases	F: SNase	ECOD (v295.2)
G	HSP90,HATPase_c_3	e4eefG1	A: alpha arrays	X: Flavodoxin-like	H: SH3	T: SH3	F: HSP90,HATPase_c_3	ECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
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)
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)
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)
F	3.90.20.10	Alpha Beta	Alpha-Beta Complex	Hemagglutinin Ectodomain	Chain B	CATH (4.3.0)
D	3.90.20.10	Alpha Beta	Alpha-Beta Complex	Hemagglutinin Ectodomain	Chain B	CATH (4.3.0)
B	3.90.20.10	Alpha Beta	Alpha-Beta Complex	Hemagglutinin Ectodomain	Chain B	CATH (4.3.0)
I	1.10.10.60	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Homeodomain-like	CATH (4.3.0)
H	1.10.10.60	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Homeodomain-like	CATH (4.3.0)
G	1.10.10.60	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Homeodomain-like	CATH (4.3.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, C, E	Hemagglutinin HA1 chain	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
B, D, F	Hemagglutinin HA2 chain	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
G, H, I	F-HB80.4, DESIGNED HEMAGGLUTININ BINDING PROTEIN	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

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

RCSB PDB is hosted by

RCSB PDB is a member of

RCSB Partners
Nucleic Acid Knowledgebase

CoreTrustSeal

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.