Annotations: 2XH3

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PF13930	e2xh3A1	A: few secondary structure elements	X: His-Me finger endonucleases (From Homology)	H: His-Me finger endonucleases	T: His-Me finger endonucleases	F: PF13930	ECOD (1.6)
B	PF13930	e2xh3B1	A: few secondary structure elements	X: His-Me finger endonucleases (From Homology)	H: His-Me finger endonucleases	T: His-Me finger endonucleases	F: PF13930	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.570.10	Alpha Beta	3-Layer(aba) Sandwich	Extracellular Endonuclease	Chain A	CATH (4.3.0)
B	3.40.570.10	Alpha Beta	3-Layer(aba) Sandwich	Extracellular Endonuclease	Chain A	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF13930	DNA/RNA non-specific endonuclease (Endonuclea_NS_2)	DNA/RNA non-specific endonuclease	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	SPD1 NUCLEASE	hydrolase activity catalytic activity binding organic cyclic compound binding nucleic acid binding cation binding ion binding metal ion binding small molecule binding	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR001604	DNA/RNA non-specific endonuclease	Domain
A, B	IPR044929	DNA/RNA non-specific endonuclease superfamily	Homologous Superfamily
A, B	IPR044927	Type VII secretion system protein EssD-like	Domain

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 R01GM133198.