Annotations: 1PEQ

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1peqa1	All alpha proteins	R1 subunit of ribonucleotide reductase, N-terminal domain	R1 subunit of ribonucleotide reductase, N-terminal domain	R1 subunit of ribonucleotide reductase, N-terminal domain	R1 subunit of ribonucleotide reductase, N-terminal domain	(Salmonella enterica subsp. enterica serovar Typhimurium ) [TaxId: 90371 ],	SCOPe (2.08)
A	d1peqa2	Alpha and beta proteins (a/b)	PFL-like glycyl radical enzymes	PFL-like glycyl radical enzymes	R1 subunit of ribonucleotide reductase, C-terminal domain	R1 subunit of ribonucleotide reductase, C-terminal domain	(Salmonella enterica subsp. enterica serovar Typhimurium ) [TaxId: 90371 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	R1 subunit of ribonucleotide reductase N-terminal domain	8025728	4001151	SCOP2 (2022-06-29)
A	SCOP2 Family	R1 subunit of ribonucleotide reductase C-terminal domain	8025729	4003473	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	R1 subunit of ribonucleotide reductase N-terminal domain	8038107	3000927	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	PFL-like glycyl radical enzymes	8038108	3001069	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)
A	RNR_N	e1peqA1	A: alpha arrays	X: Alpha helical domain of ribonucleotide reductases (From Topology)	H: Alpha helical domain of ribonucleotide reductases (From Topology)	T: Alpha helical domain of ribonucleotide reductases	F: RNR_N	ECOD (1.6)
A	Ribonuc_red_lgC	e1peqA2	A: a/b barrels	X: Ten stranded beta/alpha barrel (From Topology)	H: Ten stranded beta/alpha barrel (From Topology)	T: Ten stranded beta/alpha barrel	F: Ribonuc_red_lgC	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.20.70.20	Alpha Beta	Alpha-Beta Barrel	Anaerobic Ribonucleotide-triphosphate Reductase Large Chain		CATH (4.3.0)
A	1.10.1650.20	Mainly Alpha	Orthogonal Bundle	50s Ribosomal Protein L19e, Chain O, domain 1		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF08343	Ribonucleotide reductase N-terminal (RNR_N)	Ribonucleotide reductase N-terminal	-	Family
A	PF02867	Ribonucleotide reductase, barrel domain (Ribonuc_red_lgC)	Ribonucleotide reductase, barrel domain	-	Family
A	PF00317	Ribonucleotide reductase, all-alpha domain (Ribonuc_red_lgN)	Ribonucleotide reductase, all-alpha domain	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Ribonucleoside-diphosphate reductase 2 alpha chain	binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding ribonucleoside-diphosphate reductase activity oxidoreductase activity oxidoreductase activity, acting on CH or CH2 groups oxidoreductase activity, acting on CH or CH2 groups, disulfide as acceptor ribonucleoside-diphosphate reductase activity, thioredoxin disulfide as acceptor catalytic activity	nucleobase-containing compound metabolic process organic cyclic compound metabolic process DNA replication organic substance metabolic process metabolic process primary metabolic process DNA metabolic process macromolecule metabolic process nucleic acid metabolic process nucleotide biosynthetic process carbohydrate derivative metabolic process deoxyribonucleotide biosynthetic process deoxyribonucleotide metabolic process nucleobase-containing small molecule metabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process DNA replication organic substance metabolic process metabolic process primary metabolic process DNA metabolic process macromolecule metabolic process nucleic acid metabolic process nucleotide biosynthetic process carbohydrate derivative metabolic process deoxyribonucleotide biosynthetic process deoxyribonucleotide metabolic process nucleobase-containing small molecule metabolic process phosphate-containing compound metabolic process organic substance biosynthetic process small molecule metabolic process phosphorus metabolic process nucleoside phosphate metabolic process carbohydrate derivative biosynthetic process cellular metabolic process nucleotide metabolic process nucleobase-containing compound biosynthetic process biosynthetic process organophosphate metabolic process organophosphate biosynthetic process organic cyclic compound biosynthetic process nucleoside phosphate biosynthetic process cellular process	protein-containing complex intracellular anatomical structure catalytic complex oxidoreductase complex cytoplasm cellular anatomical entity cytosol ribonucleoside-diphosphate reductase complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR008926	Ribonucleotide reductase R1 subunit, N-terminal	Homologous Superfamily
A	IPR013554	Ribonucleotide reductase N-terminal	Domain
A	IPR013509	Ribonucleotide reductase large subunit, N-terminal	Domain
A	IPR026459	Ribonucleotide reductase, class 1b, subunit NrdE	Family
A	IPR013346	Ribonucleotide reductase, class I, alpha subunit, C-terminal	Domain
A	IPR000788	Ribonucleotide reductase large subunit, C-terminal	Domain
A	IPR039718	Ribonucleoside-diphosphate reductase large subunit	Family

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.