Annotations: 1B4O

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1b4oa_	All beta proteins	SH3-like barrel	Chromo domain-like	Histone-like proteins from archaea	DNA-binding protein	(Saccharolobus solfataricus ) [TaxId: 2287 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Histone-like proteins from archaea	8077308	4000930	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Chromo domain-like	8077309	3000161	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Chromo	e1b4oA1	A: a/b three-layered sandwiches	X: Phage tail fiber protein trimerization domain	H: beta-Prism I	T: beta-Prism I	F: Chromo	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.40.50.40	Mainly Beta	Beta Barrel	OB fold (Dihydrolipoamide Acetyltransferase, E2P)		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF02294	7kD DNA-binding domain (7kD_DNA_binding)	7kD DNA-binding domain	This family contains members of the hyper-thermophilic archaebacterium 7kD DNA-binding/endoribonuclease P2 family. There are five 7kD DNA-binding proteins, 7a-7e, found as monomers in the cell. Protein 7e shows the tightest DNA-binding ability.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	ENDORIBONUCLEASE P2	DNA binding binding nucleic acid binding endonuclease activity nuclease activity catalytic activity, acting on RNA RNA endonuclease activity catalytic activity, acting on a nucleic acid RNA nuclease activity catalytic activity hydrolase activity	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR016197	Chromo-like domain superfamily	Homologous Superfamily
A	IPR003212	DNA-binding protein 7a-e	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.