Annotations: 6QJT

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	EUF07591	e6qjtA2	A: beta barrels	X: Barrel domain in upper collar protein (From Topology)	H: Barrel domain in upper collar protein (From Topology)	T: Barrel domain in upper collar protein	F: EUF07591	ECOD (1.6)
A	DUF935	e6qjtA1	A: alpha bundles	X: Alpha-helical domain in upper collar protein (From Topology)	H: Alpha-helical domain in upper collar protein (From Topology)	T: Alpha-helical domain in upper collar protein	F: DUF935	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF21919	Phage P23-45 portal protein (P23-45_portal_barrel)	Phage P23-45 portal protein	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Portal protein	-	-	viral capsid virion component

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR054117	Thermus phage P23-45 portal protein	Family

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.