Annotations: 1FIU

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
L [auth D]	d1fiud_	Alpha and beta proteins (a/b)	Restriction endonuclease-like	Restriction endonuclease-like	Restriction endonuclease NgoIV	Restriction endonuclease NgoIV	(Neisseria gonorrhoeae ) [TaxId: 485 ],	SCOPe (2.08)
K [auth C]	d1fiuc_	Alpha and beta proteins (a/b)	Restriction endonuclease-like	Restriction endonuclease-like	Restriction endonuclease NgoIV	Restriction endonuclease NgoIV	(Neisseria gonorrhoeae ) [TaxId: 485 ],	SCOPe (2.08)
J [auth B]	d1fiub_	Alpha and beta proteins (a/b)	Restriction endonuclease-like	Restriction endonuclease-like	Restriction endonuclease NgoIV	Restriction endonuclease NgoIV	(Neisseria gonorrhoeae ) [TaxId: 485 ],	SCOPe (2.08)
I [auth A]	d1fiua_	Alpha and beta proteins (a/b)	Restriction endonuclease-like	Restriction endonuclease-like	Restriction endonuclease NgoIV	Restriction endonuclease NgoIV	(Neisseria gonorrhoeae ) [TaxId: 485 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
L [auth D]	SCOP2B Superfamily	Restriction endonuclease-like	8044440	3000104	SCOP2B (2022-06-29)
K [auth C]	SCOP2B Superfamily	Restriction endonuclease-like	8044440	3000104	SCOP2B (2022-06-29)
J [auth B]	SCOP2B Superfamily	Restriction endonuclease-like	8044440	3000104	SCOP2B (2022-06-29)
I [auth A]	SCOP2 Family	Restriction endonuclease NgoIV	8032062	4000487	SCOP2 (2022-06-29)
I [auth A]	SCOP2 Superfamily	Restriction endonuclease-like	8044440	3000104	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
L [auth D]	NgoMIV_restric	e1fiuD1	A: a/b three-layered sandwiches	X: Restriction endonuclease-like	H: Restriction endonuclease-like (From Topology)	T: Restriction endonuclease-like	F: NgoMIV_restric	ECOD (1.6)
K [auth C]	NgoMIV_restric	e1fiuC1	A: a/b three-layered sandwiches	X: Restriction endonuclease-like	H: Restriction endonuclease-like (From Topology)	T: Restriction endonuclease-like	F: NgoMIV_restric	ECOD (1.6)
J [auth B]	NgoMIV_restric	e1fiuB1	A: a/b three-layered sandwiches	X: Restriction endonuclease-like	H: Restriction endonuclease-like (From Topology)	T: Restriction endonuclease-like	F: NgoMIV_restric	ECOD (1.6)
I [auth A]	NgoMIV_restric	e1fiuA1	A: a/b three-layered sandwiches	X: Restriction endonuclease-like	H: Restriction endonuclease-like (From Topology)	T: Restriction endonuclease-like	F: NgoMIV_restric	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
L [auth D]	3.40.50.10010	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Type-2 restriction enzyme NgoMIV	CATH (4.3.0)
K [auth C]	3.40.50.10010	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Type-2 restriction enzyme NgoMIV	CATH (4.3.0)
J [auth B]	3.40.50.10010	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Type-2 restriction enzyme NgoMIV	CATH (4.3.0)
I [auth A]	3.40.50.10010	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Type-2 restriction enzyme NgoMIV	CATH (4.3.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
I [auth A], J [auth B], K [auth C], L [auth D]	TYPE II RESTRICTION ENZYME NGOMI	cation binding ion binding binding metal ion binding small molecule binding endonuclease activity catalytic activity, acting on a nucleic acid hydrolase activity DNA nuclease activity type II site-specific deoxyribonuclease activity restriction endodeoxyribonuclease activity DNA endonuclease activity hydrolase activity, acting on ester bonds catalytic activity, acting on DNA cation binding ion binding binding metal ion binding small molecule binding endonuclease activity catalytic activity, acting on a nucleic acid hydrolase activity DNA nuclease activity type II site-specific deoxyribonuclease activity restriction endodeoxyribonuclease activity DNA endonuclease activity hydrolase activity, acting on ester bonds catalytic activity, acting on DNA nuclease activity DNA endonuclease activity, producing 5'-phosphomonoesters catalytic activity	biological process involved in interspecies interaction between organisms response to stimulus response to other organism defense response DNA restriction-modification system defense response to symbiont response to external stimulus primary metabolic process clearance of foreign intracellular DNA clearance of foreign intracellular nucleic acids DNA metabolic process response to biotic stimulus nucleic acid metabolic process nucleobase-containing compound metabolic process DNA modification biological process involved in interspecies interaction between organisms response to stimulus response to other organism defense response DNA restriction-modification system defense response to symbiont response to external stimulus primary metabolic process clearance of foreign intracellular DNA clearance of foreign intracellular nucleic acids DNA metabolic process response to biotic stimulus nucleic acid metabolic process nucleobase-containing compound metabolic process DNA modification defense response to other organism response to stress macromolecule modification metabolic process cellular process response to external biotic stimulus macromolecule metabolic process	-
B [auth I], D [auth J], F [auth K], H [auth L]	DNA (5'-D(PCPCPGPGPCPGP*C)-3')	-	-	-
A [auth E], C [auth F], E [auth G], G [auth H]	DNA (5'-D(TPGPCPG)-3')	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
I [auth A], J [auth B], K [auth C], L [auth D]	IPR015105	Type-2 restriction enzyme NgoMIV	Family
I [auth A], J [auth B], K [auth C], L [auth D]	IPR037083	Type-2 restriction enzyme NgoMIV superfamily	Homologous Superfamily
I [auth A], J [auth B], K [auth C], L [auth D]	IPR011335	Restriction endonuclease type II-like	Homologous Superfamily

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.