Annotations: 2R18

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Birna_VP3	e2r18A1	A: alpha arrays	X: Capsid assembly protein VP3 (From Topology)	H: Capsid assembly protein VP3 (From Topology)	T: Capsid assembly protein VP3	F: Birna_VP3	ECOD (1.6)

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)

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	proteolysis metabolic process cellular process primary metabolic process protein metabolic process macromolecule metabolic process	viral capsid virion component host cellular component host intracellular part cellular anatomical structure host cell cytoplasm host cell part host intracellular region other organism part

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