Annotations: 3I1K

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
C	HORMA	e3i1kC3	A: alpha bundles	X: Subtilisin-like	H: Subtilisin-like	T: Subtilisin-like	F: HORMA	ECOD (develop294)
B	HORMA	e3i1kB3	A: alpha bundles	X: Subtilisin-like	H: Subtilisin-like	T: Subtilisin-like	F: HORMA	ECOD (develop294)
A		e3i1kA3	A: alpha bundles	X: Fusion glycoprotein F2	H: MoeA-I/Ornithine decarboxylase-C/Reverse ferredoxin-like domain in RNA-polymerase	T: PreATP-grasp domain	F:	ECOD (develop294)

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C	Hemagglutinin-esterase protein	host cell surface binding binding host cell surface receptor binding hydrolase activity, acting on ester bonds short-chain carboxylesterase activity carboxylic ester hydrolase activity acetylesterase activity hydrolase activity sialate O-acetylesterase activity catalytic activity	membrane organization cellular component organization membrane fusion fusion of virus membrane with host plasma membrane viral process cellular process cellular component organization or biogenesis membrane fusion involved in viral entry into host cell	virion component viral membrane viral envelope host cell plasma membrane host cellular component cellular anatomical structure host cell part host cell membrane other organism part virion membrane

Chains	Accession	Name	Type
A, B, C	IPR003860	Haemagglutinin-esterase glycoprotein, haemagglutinin domain	Domain
A, B, C	IPR008980	Viral capsid/haemagglutinin protein	Homologous Superfamily
A, B, C	IPR007142	Haemagglutinin-esterase glycoprotein, core	Domain