Annotations: 4E19

Crystal structure of RNase H1 from halophilic archaeon Halobacterium salinarum NRC-1

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2B Superfamily	Ribonuclease H-like	8091470	3000143	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Ribonuclease H-like	8091470	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)
B	PARP	e4e19B1	A: alpha arrays	X: Ribonuclease H-like	H: Ribonuclease H-like	T: Ribonuclease H-like	F: PARP	ECOD (v295.2)
A	Sushi	e4e19A1	A: alpha arrays	X: Alpha-beta plaits	H: Family B DNA polymerase insertion domain	T: Family B DNA polymerase insertion domain	F: Sushi	ECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.30.420.10	Alpha Beta	2-Layer Sandwich	Nucleotidyltransferase	domain 5	CATH (4.3.0)
A	3.30.420.10	Alpha Beta	2-Layer Sandwich	Nucleotidyltransferase	domain 5	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF13456	Reverse transcriptase-like (RVT_3)	Reverse transcriptase-like	This domain is found in plants and appears to be part of a retrotransposon.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	ribonuclease H1	endonuclease activity RNA endonuclease activity producing 5'-phosphomonoesters, hydrolytic mechanism catalytic activity, acting on RNA RNA-DNA hybrid ribonuclease activity catalytic activity, acting on a nucleic acid RNA nuclease activity hydrolase activity hydrolase activity, acting on ester bonds nuclease activity RNA endonuclease activity catalytic activity binding nucleic acid binding	catabolic process RNA metabolic process primary metabolic process nucleic acid metabolic process macromolecule catabolic process nucleobase-containing compound catabolic process nucleobase-containing compound metabolic process nucleic acid catabolic process metabolic process cellular process macromolecule metabolic process RNA catabolic process	cellular anatomical structure intracellular anatomical structure cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR036397	Ribonuclease H superfamily	Homologous Superfamily
A, B	IPR002156	Ribonuclease H domain	Domain
A, B	IPR049863	Ribonuclease HI, halobacteria	Family
A, B	IPR012337	Ribonuclease H-like superfamily	Homologous Superfamily