Annotations: 2R18

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PF01767	e2r18A1	A: alpha arrays	X: Capsid assembly protein VP3 (From Topology)	H: Capsid assembly protein VP3 (From Topology)	T: Capsid assembly protein VP3	F: PF01767	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.150.620	Mainly Alpha	Orthogonal Bundle	DNA polymerase	domain 1	CATH (4.3.0)
A	1.10.8.880	Mainly Alpha	Orthogonal Bundle	Helicase, Ruva Protein	domain 3	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF01767	Birnavirus VP3 protein (Birna_VP3)	Birnavirus VP3 protein	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Capsid assembly protein VP3	structural molecule activity peptidase activity serine hydrolase activity catalytic activity, acting on a protein serine-type peptidase activity hydrolase activity catalytic activity cation binding ion binding binding metal ion binding small molecule binding	organic substance metabolic process organonitrogen compound metabolic process proteolysis metabolic process primary metabolic process protein metabolic process macromolecule metabolic process	viral capsid virion component host cellular component host intracellular part host cell cytoplasm host cell part host intracellular region cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR029053	Viral coat protein subunit	Homologous Superfamily
A	IPR043048	Birnavirus VP3, domain 1	Homologous Superfamily
A	IPR002662	Birnavirus VP2 protein	Family
A	IPR025775	Birnavirus VP4 protease domain	Domain
A	IPR002663	Birnavirus VP3 protein	Family
A	IPR043049	Birnavirus VP3, domain 2	Homologous Superfamily

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.