6YI5

In-situ structure of the trimeric HEF from influenza C by flexible fitting into a cryo-ET map.

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
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)
A	SCOP2B Superfamily	SGNH hydrolase-like	8044118	3001315	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Influenza hemagglutinin domain-like	8041200	3001342	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	SGNH hydrolase-like	8044118	3001315	SCOP2B (2022-06-29)
C [auth E]	SCOP2B Superfamily	Influenza hemagglutinin domain-like	8041200	3001342	SCOP2B (2022-06-29)
C [auth E]	SCOP2B Superfamily	SGNH hydrolase-like	8044118	3001315	SCOP2B (2022-06-29)
C [auth E]	SCOP2B Superfamily	SGNH hydrolase-like	8044118	3001315	SCOP2B (2022-06-29)
E [auth C]	SCOP2B Superfamily	Influenza hemagglutinin domain-like	8041200	3001342	SCOP2B (2022-06-29)
E [auth C]	SCOP2B Superfamily	SGNH hydrolase-like	8044118	3001315	SCOP2B (2022-06-29)
E [auth C]	SCOP2B Superfamily	SGNH hydrolase-like	8044118	3001315	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Influenza hemagglutinin (stalk)	8039592	3001616	SCOP2B (2022-06-29)
D [auth F]	SCOP2B Superfamily	Influenza hemagglutinin (stalk)	8039592	3001616	SCOP2B (2022-06-29)
F [auth D]	SCOP2B Superfamily	Influenza hemagglutinin (stalk)	8039592	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)
A	Hema_esterase_2nd	e6yi5A1	A: beta sandwiches	X: jelly-roll	H: Viral protein domain (From Topology)	T: Viral protein domain	F: Hema_esterase_2nd	ECOD (1.6)
A	Hema_esterase_1st	e6yi5A2	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: SGNH hydrolase (From Topology)	T: SGNH hydrolase	F: Hema_esterase_1st	ECOD (1.6)
C [auth E]	Hema_esterase_2nd	e6yi5E1	A: beta sandwiches	X: jelly-roll	H: Viral protein domain (From Topology)	T: Viral protein domain	F: Hema_esterase_2nd	ECOD (1.6)
C [auth E]	Hema_esterase_1st	e6yi5E2	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: SGNH hydrolase (From Topology)	T: SGNH hydrolase	F: Hema_esterase_1st	ECOD (1.6)
E [auth C]	Hema_esterase_2nd	e6yi5C2	A: beta sandwiches	X: jelly-roll	H: Viral protein domain (From Topology)	T: Viral protein domain	F: Hema_esterase_2nd	ECOD (1.6)
E [auth C]	Hema_esterase_1st	e6yi5C1	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: SGNH hydrolase (From Topology)	T: SGNH hydrolase	F: Hema_esterase_1st	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, C [auth E], E [auth C]	PF03996	Hemagglutinin esterase (Hema_esterase)	Hemagglutinin esterase	-	Domain
A, C [auth E], E [auth C]	PF02710	Hemagglutinin domain of haemagglutinin-esterase-fusion glycoprotein (Hema_HEFG)	Hemagglutinin domain of haemagglutinin-esterase-fusion glycoprotein	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, C [auth E], E [auth C]	Hemagglutinin-esterase-fusion glycoprotein	hydrolase activity, acting on ester bonds short-chain carboxylesterase activity carboxylic ester hydrolase activity acetylesterase activity hydrolase activity sialate O-acetylesterase activity catalytic activity sialate 9-O-acetylesterase activity sialate 4-O-acetylesterase activity 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 import into cell transport establishment of localization vesicle-mediated transport localization symbiont entry into host cell symbiont entry into host endocytosis involved in viral entry into host cell endocytosis transport of virus non-lytic viral release viral budding virion assembly exit from host cell viral budding from plasma membrane viral release from host cell	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
B, D [auth F], F [auth D]	Hemagglutinin-esterase-fusion glycoprotein	hydrolase activity, acting on ester bonds short-chain carboxylesterase activity carboxylic ester hydrolase activity acetylesterase activity hydrolase activity sialate O-acetylesterase activity catalytic activity sialate 9-O-acetylesterase activity sialate 4-O-acetylesterase activity 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 import into cell transport establishment of localization vesicle-mediated transport localization symbiont entry into host cell symbiont entry into host endocytosis involved in viral entry into host cell endocytosis transport of virus non-lytic viral release viral budding virion assembly exit from host cell viral budding from plasma membrane viral release from host cell	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

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, C [auth E], E [auth C]	IPR001364	Haemagglutinin, influenzavirus A/B	Family
A, C [auth E], E [auth C]	IPR014831	Haemagglutinin stalk, influenza C	Domain
A, C [auth E], E [auth C]	IPR008980	Viral capsid/haemagglutinin protein	Homologous Superfamily
A, C [auth E], E [auth C]	IPR003860	Haemagglutinin-esterase glycoprotein, haemagglutinin domain	Domain
A, C [auth E], E [auth C]	IPR007142	Haemagglutinin-esterase glycoprotein, core	Domain
B, D [auth F], F [auth D]	IPR001364	Haemagglutinin, influenzavirus A/B	Family
B, D [auth F], F [auth D]	IPR014831	Haemagglutinin stalk, influenza C	Domain
B, D [auth F], F [auth D]	IPR008980	Viral capsid/haemagglutinin protein	Homologous Superfamily
B, D [auth F], F [auth D]	IPR003860	Haemagglutinin-esterase glycoprotein, haemagglutinin domain	Domain
B, D [auth F], F [auth D]	IPR007142	Haemagglutinin-esterase glycoprotein, core	Domain

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 R01GM133198.