4BEC

MUTANT (K220A) OF THE HSDR SUBUNIT OF THE ECOR124I RESTRICTION ENZYME IN COMPLEX WITH ATP

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	HsdR C-terminal domain-like	8091622	3002528	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	RecA-like P-loop NTPases	8091625	3002019	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Restriction endonuclease-like	8091621	3000104	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	RecA-like P-loop NTPases	8091624	3002019	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	HsdR C-terminal domain-like	8091622	3002528	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	RecA-like P-loop NTPases	8091625	3002019	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	RecA-like P-loop NTPases	8091624	3002019	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Restriction endonuclease-like	8091621	3000104	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	EcoR124_C_N	e4becA4	A: alpha arrays	X: HSDR subunit helical domain (From Topology)	H: HSDR subunit helical domain (From Topology)	T: HSDR subunit helical domain	F: EcoR124_C_N	ECOD (1.6)
A	Helicase_C_8	e4becA1	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: Helicase_C_8	ECOD (1.6)
A	DEAD_1	e4becA3	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: DEAD_1	ECOD (1.6)
A	HSDR_N	e4becA2	A: a/b three-layered sandwiches	X: Restriction endonuclease-like	H: Restriction endonuclease-like (From Topology)	T: Restriction endonuclease-like	F: HSDR_N	ECOD (1.6)
B	EcoR124_C_N	e4becB4	A: alpha arrays	X: HSDR subunit helical domain (From Topology)	H: HSDR subunit helical domain (From Topology)	T: HSDR subunit helical domain	F: EcoR124_C_N	ECOD (1.6)
B	Helicase_C_8	e4becB1	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: Helicase_C_8	ECOD (1.6)
B	DEAD_1	e4becB3	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: DEAD_1	ECOD (1.6)
B	HSDR_N	e4becB2	A: a/b three-layered sandwiches	X: Restriction endonuclease-like	H: Restriction endonuclease-like (From Topology)	T: Restriction endonuclease-like	F: HSDR_N	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.90.1570.50	Alpha Beta	Alpha-Beta Complex	tt1808, chain A		CATH (4.3.0)
A	3.90.640.50	Alpha Beta	Alpha-Beta Complex	Actin	Chain A, domain 4	CATH (4.3.0)
A	3.40.50.300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	P-loop containing nucleotide triphosphate hydrolases	CATH (4.3.0)
B	3.90.1570.50	Alpha Beta	Alpha-Beta Complex	tt1808, chain A		CATH (4.3.0)
B	3.90.640.50	Alpha Beta	Alpha-Beta Complex	Actin	Chain A, domain 4	CATH (4.3.0)
B	3.40.50.300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	P-loop containing nucleotide triphosphate hydrolases	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF18766	SWI2/SNF2 ATPase (SWI2_SNF2)	SWI2/SNF2 ATPase	-	Family
A, B	PF04313	Type I restriction enzyme R protein N terminus (HSDR_N) (HSDR_N)	Type I restriction enzyme R protein N terminus (HSDR_N)	-	Family
A, B	PF12008	Type I restriction and modification enzyme - subunit R C terminal (EcoR124_C)	Type I restriction and modification enzyme - subunit R C terminal	This enzyme has been characterised and shown to belong to a new family of the type I class of restriction and modification enzymes. This family is involved in bacterial defence by making double strand breaks in specific double stranded DNA sequences, ...	This enzyme has been characterised and shown to belong to a new family of the type I class of restriction and modification enzymes. This family is involved in bacterial defence by making double strand breaks in specific double stranded DNA sequences, e.g. that of invading bacteriophages. EcoR124 is made up of three subunits, HsdR, HsdS and HsdM. The R subunit has ATPase and restriction endonuclease activity. This domain is the C terminal of the R subunit [1].	Domain
A, B	PF22679	Type I restriction enzyme subunit R domain 3 (T1R_D3-like)	Type I restriction enzyme subunit R domain 3	This domain is found in a restriction (R) subunit of a number of type I restriction enzymes. Subunit R is required for both nuclease and ATPase activities, but not for modification [1]. This domain folds into an alpha/beta structure consisting of a c ...	This domain is found in a restriction (R) subunit of a number of type I restriction enzymes. Subunit R is required for both nuclease and ATPase activities, but not for modification [1]. This domain folds into an alpha/beta structure consisting of a central beta-sheet and alpha-helices packed on both sides of it.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	TYPE I RESTRICTION ENZYME HSDR	binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding DNA binding nucleic acid binding endonuclease activity catalytic activity, acting on a nucleic acid endodeoxyribonuclease activity, producing 5'-phosphomonoesters hydrolase activity DNA nuclease activity ATP-dependent activity ATP-dependent activity, acting on DNA restriction endodeoxyribonuclease activity DNA endonuclease activity type I site-specific deoxyribonuclease activity nuclease activity hydrolase activity, acting on ester bonds catalytic activity, acting on DNA DNA translocase activity endonuclease activity, active with either ribo- or deoxyribonucleic acids and 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	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR007409	Restriction endonuclease, type I, HsdR, N-terminal	Domain
A, B	IPR004473	Restriction endonuclease, type I, HsdR	Family
A, B	IPR040980	SWI2/SNF2 ATPase	Domain
A, B	IPR014001	Helicase superfamily 1/2, ATP-binding domain	Domain
A, B	IPR022625	Type I restriction enzyme R protein, C-terminal	Domain
A, B	IPR055180	Restriction endonuclease, type I, HsdR, second RecA-like helicase domain	Domain
A, B	IPR051268	Type I restriction enzyme R subunit	Family
A, B	IPR027417	P-loop containing nucleoside triphosphate hydrolase	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.