Annotations: 1X1P

Domain Annotation: SCOP/SCOPe Classification SCOP Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1x1pa1	Alpha and beta proteins (a/b)	Ribonuclease H-like motif	Ribonuclease H-like	Ribonuclease H	Class II ribonuclease H (RNase HII)	(Thermococcus kodakarensis KOD1 ) [TaxId: 69014 ],	SCOPe (2.08)
A	d1x1pa2	Artifacts	Tags	Tags	Tags	C-terminal Tags	(Thermococcus kodakarensis KOD1 ) [TaxId: 69014 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Ribonuclease H-like	8034127	3000143	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)
A	RNase_HII	e1x1pA1	A: mixed a+b and a/b	X: Ribonuclease H-like	H: Ribonuclease H-like (From Topology)	T: Ribonuclease H-like	F: RNase_HII	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.30.420.10	Alpha Beta	2-Layer Sandwich	Nucleotidyltransferase	domain 5	CATH (4.3.0)
A	1.10.10.460	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Ribonuclease hii. Domain 2	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF01351	Ribonuclease HII (RNase_HII)	Ribonuclease HII	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Ribonuclease HII	cation binding manganese ion binding transition metal ion binding ion binding binding metal ion binding small molecule binding endonuclease activity RNA endonuclease activity, producing 5'-phosphomonoesters catalytic activity, acting on RNA RNA-DNA hybrid ribonuclease activity catalytic activity, acting on a nucleic acid RNA nuclease activity hydrolase activity cation binding manganese ion binding transition metal ion binding ion binding binding metal ion binding small molecule binding endonuclease activity RNA endonuclease activity, producing 5'-phosphomonoesters catalytic activity, acting on RNA RNA-DNA hybrid ribonuclease activity catalytic activity, acting on a nucleic acid RNA nuclease activity hydrolase activity nuclease activity hydrolase activity, acting on ester bonds RNA endonuclease activity endonuclease activity, active with either ribo- or deoxyribonucleic acids and producing 5'-phosphomonoesters catalytic activity RNA binding organic cyclic compound binding nucleic acid binding	DNA replication, removal of RNA primer catabolic process RNA metabolic process primary metabolic process DNA metabolic process nucleic acid metabolic process macromolecule catabolic process organic cyclic compound catabolic process nucleobase-containing compound catabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process DNA replication organic substance metabolic process nucleic acid catabolic process DNA replication, removal of RNA primer catabolic process RNA metabolic process primary metabolic process DNA metabolic process nucleic acid metabolic process macromolecule catabolic process organic cyclic compound catabolic process nucleobase-containing compound catabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process DNA replication organic substance metabolic process nucleic acid catabolic process metabolic process macromolecule metabolic process organic substance catabolic process RNA catabolic process cellular response to stimulus mismatch repair response to stimulus cellular response to stress DNA damage response response to stress cellular process DNA repair	protein-containing complex catalytic complex intracellular protein-containing complex ribonuclease H2 complex intracellular anatomical structure cytoplasm cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR036397	Ribonuclease H superfamily	Homologous Superfamily
A	IPR020787	Ribonuclease HII, archaea	Family
A	IPR004649	Ribonuclease H2, subunit A	Family
A	IPR024567	Ribonuclease HII/HIII domain	Domain
A	IPR001352	Ribonuclease HII/HIII	Family
A	IPR023160	Ribonuclease HII, helix-loop-helix cap domain superfamily	Homologous Superfamily
A	IPR012337	Ribonuclease H-like superfamily	Homologous Superfamily

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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.