1SMQ - JenaLib

Asymmetric Unit (Jmol Viewer)

Biological Unit 1 (Jmol Viewer)

Biological Unit 2 (Jmol Viewer)

Title :   STRUCTURE OF THE RIBONUCLEOTIDE REDUCTASE RNR2 HOMODIMER FROM SACCHAROMYCES CEREVISIAE

Authors :   M. Sommerhalter, W. C. Voegtli, D. L. Perlstein, J. Ge, J. Stubbe, A. C. Rosenzweig

Date :   09 Mar 04 (Deposition) - 10 Aug 04 (Release) - 24 Feb 09 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   3.10

Chains :   Asym. Unit : A,B,C,D
Biol. Unit 1: A,D  (1x)
Biol. Unit 2: B,C  (1x)

Keywords :   Oxidoreductase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   M. Sommerhalter, W. C. Voegtli, D. L. Perlstein, J. Ge, J. Stubbe, A. C. Rosenzweig
Structures Of The Yeast Ribonucleotide Reductase Rnr2 And Rnr4 Homodimers.
Biochemistry V. 43 7736 2004
PubMed-ID: 15196016 | Reference-DOI: 10.1021/BI049510M
(for further references see the PDB file header)

Molecule 1 - RIBONUCLEOSIDE-DIPHOSPHATE REDUCTASE SMALL CHAIN 1
	Chains	:	A, B, C, D
	EC Number	:	1.17.4.1
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Taxid	:	562
	Gene	:	RNR2, YJL026W, J1271
	Organism Common	:	BAKER'S YEAST
	Organism Scientific	:	SACCHAROMYCES CEREVISIAE
	Organism Taxid	:	4932
	Synonym	:	RIBONUCLEOTIDE REDUCTASE SMALL SUBUNIT

		1	2	3	4
Asymmetric Unit	:	A	B	C	D
Biological Unit 1 (1x)	:	A			D
Biological Unit 2 (1x)	:		B	C

Summary Information (see also Sequences/Alignments below)

(no "Ligand,Modified Residues,Ions" information available for 1SMQ)

(no "Site" information available for 1SMQ)

(no "SS Bond" information available for 1SMQ)

(no "Cis Peptide Bond" information available for 1SMQ)

(no "SAP(SNP)/Variant" information available for 1SMQ)

Asymmetric Unit (1, 4)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	RIBORED_SMALL	PS00368	Ribonucleotide reductase small subunit signature.	RIR2_YEAST	175-191	4	A:175-191 B:175-191 C:175-191 D:175-191

Biological Unit 1 (1, 2)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	RIBORED_SMALL	PS00368	Ribonucleotide reductase small subunit signature.	RIR2_YEAST	175-191	2	A:175-191 - - D:175-191

Biological Unit 2 (1, 2)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	RIBORED_SMALL	PS00368	Ribonucleotide reductase small subunit signature.	RIR2_YEAST	175-191	2	- B:175-191 C:175-191 -

Asymmetric Unit (1, 4)

	ENSEMBL					UniProtKB			PDB
No.	Transcript ID	Exon	Exon ID	Genome Location	Length	ID	Location	Length	Count	Location	Length
1.1	YJL026W	1	YJL026W.1	X:392398-393597	1200	RIR2_YEAST	1-399	399	4	A:26-359 (gaps) B:26-359 (gaps) C:26-359 (gaps) D:26-359 (gaps)	334 334 334 334

Asymmetric Unit

Reformat:	Number of residues per line = ('0' or empty: single-line sequence representation)
	Number of residues per labelling interval =
	UniProt sequence: complete aligned part

Show mapping:	SCOP domains	CATH domains	Pfam domains	Secondary structure (by author)
	SAPs(SNPs)	PROSITE motifs	Exons
	(details for a mapped element are shown in a popup box when the mouse pointer rests over it)

Chain A from PDB  Type:PROTEIN  Length:329
 aligned with RIR2_YEAST | P09938 from UniProtKB/Swiss-Prot  Length:399

    Alignment length:334
                                    35        45        55        65        75        85        95       105       115       125       135       145       155       165       175       185       195       205       215       225       235       245       255       265       275       285       295       305       315       325       335       345       355    
           RIR2_YEAST    26 LNKELETLREENRVKSDMLKEKLSKDAENHKAYLKSHQVHRHKLKEMEKEEPLLNEDKERTVLFPIKYHEIWQAYKRAEASFWTAEEIDLSKDIHDWNNRMNENERFFISRVLAFFAASDGIVNENLVENFSTEVQIPEAKSFYGFQIMIENIHSETYSLLIDTYIKDPKESEFLFNAIHTIPEIGEKAEWALRWIQDADALFGERLVAFASIEGVFFSGSFASIFWLKKRGMMPGLTFSNELICRDEGLHTDFACLLFAHLKNKPDPAIVEKIVTEAVEIEQRYFLDALPVALLGMNADLMNQYVEFVADRLLVAFGNKKYYKVENPFDFMEN 359
               SCOP domains d1smqa_ A: Ribonucleotide reductase R2                                                                                                                                                                                                                                                                                                         SCOP domains
               CATH domains 1smqA00 A:26-359 Ribonucleotide Reductase, subunit A                                                                                                                                                                                                                                                                                           CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhh............hhhhhhhhhhhhh...hhhhh..hhhhhhhhhh.hhhhhhhhhhhhhhhh..-----hhhhhh......hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhh...hhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhh.hhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhhhh...hhhhhh.hhhhhhhhhhhhhhhhhhhh................. Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -----------------------------------------------------------------------------------------------------------------------------------------------------RIBORED_SMALL    ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
               Transcript 1 Exon 1.1  PDB: A:26-359 (gaps) UniProt: 1-399 [INCOMPLETE]                                                                                                                                                                                                                                                                                     Transcript 1
                 1smq A  26 LNKELETLREENRVKSDMLKEKLSKDAENHKAYLKSHQVHRHKLKEMEKEEPLLNEDKERTVLFPIKYHEIWQAYKRAEASFWTAEEIDLSKDIHDWNNRMNENERFFISRVLAFFAAS-----ENLVENFSTEVQIPEAKSFYGFQIMIENIHSETYSLLIDTYIKDPKESEFLFNAIHTIPEIGEKAEWALRWIQDADALFGERLVAFASIEGVFFSGSFASIFWLKKRGMMPGLTFSNELICRDEGLHTDFACLLFAHLKNKPDPAIVEKIVTEAVEIEQRYFLDALPVALLGMNADLMNQYVEFVADRLLVAFGNKKYYKVENPFDFMEN 359
                                    35        45        55        65        75        85        95       105       115       125       135        |-    |  155       165       175       185       195       205       215       225       235       245       255       265       275       285       295       305       315       325       335       345       355    
                                                                                                                                                144   150

Chain B from PDB  Type:PROTEIN  Length:329
 aligned with RIR2_YEAST | P09938 from UniProtKB/Swiss-Prot  Length:399

    Alignment length:334
                                    35        45        55        65        75        85        95       105       115       125       135       145       155       165       175       185       195       205       215       225       235       245       255       265       275       285       295       305       315       325       335       345       355    
           RIR2_YEAST    26 LNKELETLREENRVKSDMLKEKLSKDAENHKAYLKSHQVHRHKLKEMEKEEPLLNEDKERTVLFPIKYHEIWQAYKRAEASFWTAEEIDLSKDIHDWNNRMNENERFFISRVLAFFAASDGIVNENLVENFSTEVQIPEAKSFYGFQIMIENIHSETYSLLIDTYIKDPKESEFLFNAIHTIPEIGEKAEWALRWIQDADALFGERLVAFASIEGVFFSGSFASIFWLKKRGMMPGLTFSNELICRDEGLHTDFACLLFAHLKNKPDPAIVEKIVTEAVEIEQRYFLDALPVALLGMNADLMNQYVEFVADRLLVAFGNKKYYKVENPFDFMEN 359
               SCOP domains d1smqb_ B: Ribonucleotide reductase R2                                                                                                                                                                                                                                                                                                         SCOP domains
               CATH domains 1smqB00 B:26-359 Ribonucleotide Reductase, subunit A                                                                                                                                                                                                                                                                                           CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh............hhhhhhhhhhhhh...hhhhh..hhhhhhhhhh.hhhhhhhhhhhhhhhh..-----hhhhhh......hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhh...hhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhh.hhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhhhh...hhhhhh.hhhhhhhhhhhhhhhhhhhh................. Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -----------------------------------------------------------------------------------------------------------------------------------------------------RIBORED_SMALL    ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
               Transcript 1 Exon 1.1  PDB: B:26-359 (gaps) UniProt: 1-399 [INCOMPLETE]                                                                                                                                                                                                                                                                                     Transcript 1
                 1smq B  26 LNKELETLREENRVKSDMLKEKLSKDAENHKAYLKSHQVHRHKLKEMEKEEPLLNEDKERTVLFPIKYHEIWQAYKRAEASFWTAEEIDLSKDIHDWNNRMNENERFFISRVLAFFAAS-----ENLVENFSTEVQIPEAKSFYGFQIMIENIHSETYSLLIDTYIKDPKESEFLFNAIHTIPEIGEKAEWALRWIQDADALFGERLVAFASIEGVFFSGSFASIFWLKKRGMMPGLTFSNELICRDEGLHTDFACLLFAHLKNKPDPAIVEKIVTEAVEIEQRYFLDALPVALLGMNADLMNQYVEFVADRLLVAFGNKKYYKVENPFDFMEN 359
                                    35        45        55        65        75        85        95       105       115       125       135        |-    |  155       165       175       185       195       205       215       225       235       245       255       265       275       285       295       305       315       325       335       345       355    
                                                                                                                                                144   150

Chain C from PDB  Type:PROTEIN  Length:318
 aligned with RIR2_YEAST | P09938 from UniProtKB/Swiss-Prot  Length:399

    Alignment length:334
                                    35        45        55        65        75        85        95       105       115       125       135       145       155       165       175       185       195       205       215       225       235       245       255       265       275       285       295       305       315       325       335       345       355    
           RIR2_YEAST    26 LNKELETLREENRVKSDMLKEKLSKDAENHKAYLKSHQVHRHKLKEMEKEEPLLNEDKERTVLFPIKYHEIWQAYKRAEASFWTAEEIDLSKDIHDWNNRMNENERFFISRVLAFFAASDGIVNENLVENFSTEVQIPEAKSFYGFQIMIENIHSETYSLLIDTYIKDPKESEFLFNAIHTIPEIGEKAEWALRWIQDADALFGERLVAFASIEGVFFSGSFASIFWLKKRGMMPGLTFSNELICRDEGLHTDFACLLFAHLKNKPDPAIVEKIVTEAVEIEQRYFLDALPVALLGMNADLMNQYVEFVADRLLVAFGNKKYYKVENPFDFMEN 359
               SCOP domains d1smqc_ C: Ribonucleotide reduct           ase R2                                                                                                                                                                                                                                                                                              SCOP domains
               CATH domains 1smqC00 C:26-359 Ribonucleotide            Reductase, subunit A                                                                                                                                                                                                                                                                                CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh-----------..hhhhhhhhhh............hhhhhhhhhhhhh...hhhhh..hhhhhhhhhh.hhhhhhhhhhhhhhhh..-----hhhhhh......hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhh...hhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhh.hhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhhhh...hhhhhh.hhhhhhhhhhhhhhhhhhhhh................ Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -----------------------------------------------------------------------------------------------------------------------------------------------------RIBORED_SMALL    ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
               Transcript 1 Exon 1.1  PDB: C:26-359 (gaps) UniProt: 1-399 [INCOMPLETE]                                                                                                                                                                                                                                                                                     Transcript 1
                 1smq C  26 LNKELETLREENRVKSDMLKEKLSKDAENHKA-----------LKEMEKEEPLLNEDKERTVLFPIKYHEIWQAYKRAEASFWTAEEIDLSKDIHDWNNRMNENERFFISRVLAFFAAS-----ENLVENFSTEVQIPEAKSFYGFQIMIENIHSETYSLLIDTYIKDPKESEFLFNAIHTIPEIGEKAEWALRWIQDADALFGERLVAFASIEGVFFSGSFASIFWLKKRGMMPGLTFSNELICRDEGLHTDFACLLFAHLKNKPDPAIVEKIVTEAVEIEQRYFLDALPVALLGMNADLMNQYVEFVADRLLVAFGNKKYYKVENPFDFMEN 359
                                    35        45        55 |       -   |    75        85        95       105       115       125       135        |-    |  155       165       175       185       195       205       215       225       235       245       255       265       275       285       295       305       315       325       335       345       355    
                                                          57          69                                                                        144   150

Chain D from PDB  Type:PROTEIN  Length:318
 aligned with RIR2_YEAST | P09938 from UniProtKB/Swiss-Prot  Length:399

    Alignment length:334
                                    35        45        55        65        75        85        95       105       115       125       135       145       155       165       175       185       195       205       215       225       235       245       255       265       275       285       295       305       315       325       335       345       355    
           RIR2_YEAST    26 LNKELETLREENRVKSDMLKEKLSKDAENHKAYLKSHQVHRHKLKEMEKEEPLLNEDKERTVLFPIKYHEIWQAYKRAEASFWTAEEIDLSKDIHDWNNRMNENERFFISRVLAFFAASDGIVNENLVENFSTEVQIPEAKSFYGFQIMIENIHSETYSLLIDTYIKDPKESEFLFNAIHTIPEIGEKAEWALRWIQDADALFGERLVAFASIEGVFFSGSFASIFWLKKRGMMPGLTFSNELICRDEGLHTDFACLLFAHLKNKPDPAIVEKIVTEAVEIEQRYFLDALPVALLGMNADLMNQYVEFVADRLLVAFGNKKYYKVENPFDFMEN 359
               SCOP domains d1smqd_ D: Ribonucleotide reduct           ase R2                                                                                                                                                                                                                                                                                              SCOP domains
               CATH domains 1smqD00 D:26-359 Ribonucleotide            Reductase, subunit A                                                                                                                                                                                                                                                                                CATH domains
           Pfam domains (1) --------------------------------           -------Ribonuc_red_sm-1smqD01 D:76-358                                                                                                                                                                                                                                                            - Pfam domains (1)
           Pfam domains (2) --------------------------------           -------Ribonuc_red_sm-1smqD02 D:76-358                                                                                                                                                                                                                                                            - Pfam domains (2)
           Pfam domains (3) --------------------------------           -------Ribonuc_red_sm-1smqD03 D:76-358                                                                                                                                                                                                                                                            - Pfam domains (3)
           Pfam domains (4) --------------------------------           -------Ribonuc_red_sm-1smqD04 D:76-358                                                                                                                                                                                                                                                            - Pfam domains (4)
         Sec.struct. author hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh-----------..hhhhhhhhhh............hhhhhhhhhhhhh...hhhhh..hhhhhhhhhh.hhhhhhhhhhhhhhhh..-----hhhhhh......hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhh...hhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhh.hhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhhhh...hhhhhh.hhhhhhhhhhhhhhhhhhhhh................ Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -----------------------------------------------------------------------------------------------------------------------------------------------------RIBORED_SMALL    ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
               Transcript 1 Exon 1.1  PDB: D:26-359 (gaps) UniProt: 1-399 [INCOMPLETE]                                                                                                                                                                                                                                                                                     Transcript 1
                 1smq D  26 LNKELETLREENRVKSDMLKEKLSKDAENHKA-----------LKEMEKEEPLLNEDKERTVLFPIKYHEIWQAYKRAEASFWTAEEIDLSKDIHDWNNRMNENERFFISRVLAFFAAS-----ENLVENFSTEVQIPEAKSFYGFQIMIENIHSETYSLLIDTYIKDPKESEFLFNAIHTIPEIGEKAEWALRWIQDADALFGERLVAFASIEGVFFSGSFASIFWLKKRGMMPGLTFSNELICRDEGLHTDFACLLFAHLKNKPDPAIVEKIVTEAVEIEQRYFLDALPVALLGMNADLMNQYVEFVADRLLVAFGNKKYYKVENPFDFMEN 359
                                    35        45        55 |       -   |    75        85        95       105       115       125       135        |-    |  155       165       175       185       195       205       215       225       235       245       255       265       275       285       295       305       315       325       335       345       355    
                                                          57          69                                                                        144   150

Legend:		→ Mismatch	(orange background)
	-	→ Gap	(green background, '-', border residues have a numbering label)
		→ Modified Residue	(blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
	x	→ Chemical Group	(purple background, 'x', labelled with number + name, e.g. ACE or NH2)
	extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '\|'

Asymmetric Unit

Classes(

)

Folds(

)

Superfamilies( (-)

)

Families(

)

Protein Domains( (-)

)

Organisms( (-)

)

Class: All alpha proteins (14657)

Fold: Ferritin-like (533)

Superfamily: Ferritin-like (489)

Family: Ribonucleotide reductase-like (185)

Protein domain: Ribonucleotide reductase R2 (45)

Baker's yeast (Saccharomyces cerevisiae), Y2 [TaxId: 4932] (2)

1a	d1smqa_	A:
1b	d1smqb_	B:
1c	d1smqc_	C:
1d	d1smqd_	D:

Asymmetric Unit

Classes(

)

Architectures( (-)

)

Topologies( (-)

)

Homologous Superfamilies( (-)

)

Organisms( (-)

)

Class: Mainly Alpha (13335)

Architecture: Orthogonal Bundle (10391)

Topology: Ribonucleotide Reductase, subunit A (86)

Homologous Superfamily: Ribonucleotide Reductase, subunit A (86)

Baker's yeast (Saccharomyces cerevisiae) (3)

1a	1smqA00	A:26-359
1b	1smqB00	B:26-359
1c	1smqC00	C:26-359
1d	1smqD00	D:26-359

Asymmetric Unit

Clans(

)

Families(

)

Organisms( (-)

)

Clan: Ferritin (185)

Family: Ribonuc_red_sm (41)

Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Bakers yeast) (2)

1a	Ribonuc_red_sm-1smqD01	D:76-358
1b	Ribonuc_red_sm-1smqD02	D:76-358
1c	Ribonuc_red_sm-1smqD03	D:76-358
1d	Ribonuc_red_sm-1smqD04	D:76-358

Asymmetric Unit(hide GO term definitions)

Chain A,B,C,D (RIR2_YEAST | P09938)

molecular function
	GO:0046872	metal ion binding	Interacting selectively and non-covalently with any metal ion.
	GO:0016491	oxidoreductase activity	Catalysis of an oxidation-reduction (redox) reaction, a reversible chemical reaction in which the oxidation state of an atom or atoms within a molecule is altered. One substrate acts as a hydrogen or electron donor and becomes oxidized, while the other acts as hydrogen or electron acceptor and becomes reduced.
	GO:0005515	protein binding	Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
	GO:0004748	ribonucleoside-diphosphate reductase activity, thioredoxin disulfide as acceptor	Catalysis of the reaction: 2'-deoxyribonucleoside diphosphate + thioredoxin disulfide + H2O = ribonucleoside diphosphate + thioredoxin. Thioredoxin disulfide is the oxidized form of thioredoxin.
biological process
	GO:0006260	DNA replication	The cellular metabolic process in which a cell duplicates one or more molecules of DNA. DNA replication begins when specific sequences, known as origins of replication, are recognized and bound by initiation proteins, and ends when the original DNA molecule has been completely duplicated and the copies topologically separated. The unit of replication usually corresponds to the genome of the cell, an organelle, or a virus. The template for replication can either be an existing DNA molecule or RNA.
	GO:0009186	deoxyribonucleoside diphosphate metabolic process	The chemical reactions and pathways involving a deoxyribonucleoside diphosphate, a compound consisting of a nucleobase linked to a deoxyribose sugar esterified with diphosphate on the sugar.
	GO:0009263	deoxyribonucleotide biosynthetic process	The chemical reactions and pathways resulting in the formation of a deoxyribonucleotide, a compound consisting of deoxyribonucleoside (a base linked to a deoxyribose sugar) esterified with a phosphate group at either the 3' or 5'-hydroxyl group of the sugar.
	GO:0055114	oxidation-reduction process	A metabolic process that results in the removal or addition of one or more electrons to or from a substance, with or without the concomitant removal or addition of a proton or protons.
cellular component
	GO:0005737	cytoplasm	All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
	GO:0005634	nucleus	A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.
	GO:0005971	ribonucleoside-diphosphate reductase complex	An enzyme complex composed of 2-4 or more subunits, which usually contains nonheme iron and requires ATP for catalysis. Catalyzes the formation of 2'-deoxyribonucleoside diphosphate from ribonucleoside diphosphate, using either thioredoxin disulfide or glutaredoxin disulfide as an acceptor.

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Access by PDB/NDB ID
	1smq
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	RIR2_YEAST \| P09938
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	1.17.4.1
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	RIR2_YEAST \| P09938
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	RIR2_YEAST \| P09938	:	1jk0 2cvy

1jk0	STRUCTURE OF THE RIBONUCLEOTIDE REDUCTASE Y2Y4 (RNR2RNR4) HETERODIMER FROM SACCHAROMYCES CEREVISIAE
1sms	STRUCTURE OF THE RIBONUCLEOTIDE REDUCTASE RNR4 HOMODIMER FROM SACCHAROMYCES CEREVISIAE

Description

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Ligands, Modified Residues, Ions (0, 0)

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Sequence-Structure Mapping

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Exons (1, 4)

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SCOP Domains (1, 4)

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