Annotations: 4XJQ

The catalytic mechanism of human parainfluenza virus type 3 haemagglutinin-neuraminidase revealed

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
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)
B	d4xjqb_	All beta proteins	6-bladed beta-propeller	Sialidases	Sialidases (neuraminidases)	automated matches	(Human respirovirus 3 ) [TaxId: 11216 ],	SCOPe (2.08)
A	d4xjqa_	All beta proteins	6-bladed beta-propeller	Sialidases	Sialidases (neuraminidases)	automated matches	(Human respirovirus 3 ) [TaxId: 11216 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2 Family	Sialidases (neuraminidases)	8080114	4002683	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	Sialidases	8080115	3001607	SCOP2 (2022-06-29)
A	SCOP2B Superfamily	Sialidases	8080115	3001607	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)
B	RNA_pol_Rpb2_6	e4xjqB1	A: a/b three-layered sandwiches	X: Glycosyl hydrolase domain-like	H: Glycoside hydrolase family 127 middle domain-related	T: Glycoside hydrolase family 127 middle domain-related	F: RNA_pol_Rpb2_6	ECOD (v294.1)
A	Thymidylat_synt	e4xjqA1	A: a/b three-layered sandwiches	X: Four-helical up-and-down bundle	H: Thymidylate synthase/dCMP hydroxymethylase	T: Thymidylate synthase/dCMP hydroxymethylase	F: Thymidylat_synt	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	2.120.10.10	Mainly Beta	6 Propeller	Neuraminidase		CATH (4.3.0)
A	2.120.10.10	Mainly Beta	6 Propeller	Neuraminidase		CATH (4.3.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Hemagglutinin-neuraminidase	cation binding ion binding binding metal ion binding small molecule 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 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	IPR016285	Haemagglutinin-neuraminidase	Family
A, B	IPR036278	Sialidase superfamily	Homologous Superfamily
A, B	IPR000665	Haemagglutinin/haemagglutinin-neuraminidase, paramyxovirus	Family

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.