Annotations: 4QBN

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d4qbna_	Alpha and beta proteins (a/b)	Restriction endonuclease-like	Restriction endonuclease-like	Virus-type replication-repair nuclease (VRR-Nuc)	stNUC	(Salmonella phage SETP3 ) [TaxId: 424944 ],	SCOPe (2.08)
B	d4qbnb_	Alpha and beta proteins (a/b)	Restriction endonuclease-like	Restriction endonuclease-like	Virus-type replication-repair nuclease (VRR-Nuc)	stNUC	(Salmonella phage SETP3 ) [TaxId: 424944 ],	SCOPe (2.08)

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	F_UNCLASSIFIED	e4qbnA1	A: a/b three-layered sandwiches	X: Restriction endonuclease-like	H: Restriction endonuclease-like (From Topology)	T: Restriction endonuclease-like	F: F_UNCLASSIFIED	ECOD (1.6)
B	F_UNCLASSIFIED	e4qbnB1	A: a/b three-layered sandwiches	X: Restriction endonuclease-like	H: Restriction endonuclease-like (From Topology)	T: Restriction endonuclease-like	F: F_UNCLASSIFIED	ECOD (1.6)

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.1350.10	Alpha Beta	3-Layer(aba) Sandwich	Trna Endonuclease	Chain: A, domain 1	CATH (4.3.0)
B	3.40.1350.10	Alpha Beta	3-Layer(aba) Sandwich	Trna Endonuclease	Chain: A, domain 1	CATH (4.3.0)

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Nuclease	binding organic cyclic compound binding nucleic acid binding nuclease activity hydrolase activity, acting on ester bonds hydrolase activity catalytic activity	-	-