Annotations: 4R28

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
D	EUF07528	e4r28D2	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: PUA domain	F: EUF07528	ECOD (1.6)
D	Mrr_cat	e4r28D1	A: a/b three-layered sandwiches	X: Restriction endonuclease-like	H: Restriction endonuclease-like (From Topology)	T: Restriction endonuclease-like	F: Mrr_cat	ECOD (1.6)
C	EUF07528	e4r28C2	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: PUA domain	F: EUF07528	ECOD (1.6)
C	Mrr_cat	e4r28C1	A: a/b three-layered sandwiches	X: Restriction endonuclease-like	H: Restriction endonuclease-like (From Topology)	T: Restriction endonuclease-like	F: Mrr_cat	ECOD (1.6)
B	EUF07528	e4r28B1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: PUA domain	F: EUF07528	ECOD (1.6)
B	Mrr_cat	e4r28B2	A: a/b three-layered sandwiches	X: Restriction endonuclease-like	H: Restriction endonuclease-like (From Topology)	T: Restriction endonuclease-like	F: Mrr_cat	ECOD (1.6)
A	EUF07528	e4r28A2	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: PUA domain	F: EUF07528	ECOD (1.6)
A	Mrr_cat	e4r28A1	A: a/b three-layered sandwiches	X: Restriction endonuclease-like	H: Restriction endonuclease-like (From Topology)	T: Restriction endonuclease-like	F: Mrr_cat	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
D	2.30.280.20	Mainly Beta	Roll	PUA domain-like		CATH (4.3.0)
D	3.40.1350.10	Alpha Beta	3-Layer(aba) Sandwich	Trna Endonuclease	Chain: A, domain 1	CATH (4.3.0)
C	2.30.280.20	Mainly Beta	Roll	PUA domain-like		CATH (4.3.0)
C	3.40.1350.10	Alpha Beta	3-Layer(aba) Sandwich	Trna Endonuclease	Chain: A, domain 1	CATH (4.3.0)
B	2.30.280.20	Mainly Beta	Roll	PUA domain-like		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)
A	2.30.280.20	Mainly Beta	Roll	PUA domain-like		CATH (4.3.0)
A	3.40.1350.10	Alpha Beta	3-Layer(aba) Sandwich	Trna Endonuclease	Chain: A, domain 1	CATH (4.3.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
F [auth Y]	DNA (26-MER)	-	-	-
E [auth X]	DNA (25-MER)	-	-	-
A, B, C, D	Restriction endonuclease	DNA binding binding nucleic acid binding endonuclease activity nuclease activity catalytic activity, acting on a nucleic acid catalytic activity cation binding ion binding metal ion binding small molecule binding	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	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR041409	Restriction endonuclease AspBHI, N-terminal	Domain
A, B, C, D	IPR011856	tRNA endonuclease-like domain superfamily	Homologous Superfamily
A, B, C, D	IPR007560	Restriction endonuclease type IV, Mrr	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.