Annotations: 3TSI

Structure of the parainfluenza virus 5 (PIV5) hemagglutinin-neuraminidase (HN) stalk domain

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
D	Med6	e3tsiD1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: Med6	ECOD (v295)
C	Med6	e3tsiC1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: Med6	ECOD (v295)
B	Med6	e3tsiB1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: Med6	ECOD (v295)
A		e3tsiA01	A: alpha arrays	X: Voltage-gated ion channels	H: Voltage-gated ion channels	T: ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase	F:	ECOD (v295)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Provenance Source (Version)
D	1.20.5.110	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces	CATH (4.3.0)
C	1.20.5.110	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces	CATH (4.3.0)
B	1.20.5.110	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces	CATH (4.3.0)
A	1.20.5.110	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces	CATH (4.3.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	Hemagglutinin-neuraminidase	identical protein binding protein binding binding hydrolase activity, acting on glycosyl bonds alpha-sialidase activity hydrolase activity, hydrolyzing O-glycosyl compounds hydrolase activity exo-alpha-sialidase activity catalytic activity host cell surface binding host cell surface receptor binding	virion attachment to host cell biological process involved in interspecies interaction between organisms adhesion of symbiont to host cell viral process 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 virion attachment to host cell biological process involved in interspecies interaction between organisms adhesion of symbiont to host cell viral process 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 symbiont entry into host cell symbiont entry into host	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

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR016285	Haemagglutinin-neuraminidase	Family
A, B, C, D	IPR036278	Sialidase superfamily	Homologous Superfamily
A, B, C, D	IPR000665	Haemagglutinin/haemagglutinin-neuraminidase, paramyxovirus	Family

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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.

3TSI | pdb_00003tsi

Structure of the parainfluenza virus 5 (PIV5) hemagglutinin-neuraminidase (HN) stalk domain

External Resource: Annotation

Domain Annotation: ECOD Classification ECOD Database Homepage

Domain Annotation: CATH CATH Database Homepage

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

InterPro: Protein Family Classification InterPro Database Homepage