Annotations: 2XGR

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	DNA_pol3_beta_3	e2xgrA2	A: a/b three-layered sandwiches	X: DEATH domain	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F: DNA_pol3_beta_3	ECOD (v294.1)

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)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	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	SPD1 NUCLEASE	hydrolase activity catalytic activity 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	IPR044929	DNA/RNA non-specific endonuclease superfamily	Homologous Superfamily
A	IPR044927	Type VII secretion system protein EssD-like	Domain
A	IPR001604	DNA/RNA non-specific endonuclease/pyrophosphatase/phosphodiesterase domain	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 R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.