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(-) Description

Title :  RIBONUCLEOTIDE REDUCTASE R2 SOAKED WITH FERROUS ION AT NEUTRAL PH
 
Authors :  W. C. Voegtli, M. Sommerhalter, L. Saleh, J. Baldwin, J. M. Bollinger J A. C. Rosenzweig
Date :  30 May 03  (Deposition) - 13 Jan 04  (Release) - 13 Jul 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.68
Chains :  Asym./Biol. Unit :  A,B
Keywords :  Four-Helix Bundle, Diferrous Cluster, Oxidoreductase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  W. C. Voegtli, M. Sommerhalter, L. Saleh, J. Baldwin, J. M. Bollinger Jr. , A. C. Rosenzweig
Variable Coordination Geometries At The Diiron(Ii) Active Site Of Ribonucleotide Reductase R2.
J. Am. Chem. Soc. V. 125 15822 2003
PubMed-ID: 14677973  |  Reference-DOI: 10.1021/JA0370387

(-) Compounds

Molecule 1 - RIBONUCLEOSIDE-DIPHOSPHATE REDUCTASE 1 BETA CHAIN
    Chains: A, B
    EC Number: 1.17.4.1
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Taxid: 562
    Gene: RIR2
    Organism Scientific: ESCHERICHIA COLI
    Organism Taxid: 562
    Synonym: RIBONUCLEOTIDE REDUCTASE 1, B2 PROTEIN, R2 PROTEIN

 Structural Features

(-) Chains, Units

  12
Asymmetric/Biological Unit : AB

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (2, 18)

Asymmetric/Biological Unit (2, 18)
No.NameCountTypeFull Name
1FE4Ligand/IonFE (III) ION
2HG14Ligand/IonMERCURY (II) ION

(-) Sites  (18, 18)

Asymmetric Unit (18, 18)
No.NameEvidenceResiduesDescription
01AC1SOFTWAREASP A:84 , GLU A:115 , HIS A:118 , PHE A:208 , GLU A:238 , FE A:377BINDING SITE FOR RESIDUE FE A 376
02AC2SOFTWAREGLU A:115 , GLU A:204 , GLU A:238 , HIS A:241 , FE A:376BINDING SITE FOR RESIDUE FE A 377
03AC3SOFTWAREASP B:84 , GLU B:115 , HIS B:118 , PHE B:208 , GLU B:238 , FE B:377BINDING SITE FOR RESIDUE FE B 376
04AC4SOFTWAREGLU B:115 , GLU B:204 , GLU B:238 , HIS B:241 , FE B:376BINDING SITE FOR RESIDUE FE B 377
05AC5SOFTWARETYR A:194 , ALA A:265 , CYS A:272BINDING SITE FOR RESIDUE HG A 378
06AC6SOFTWARETYR A:157 , CYS A:196 , VAL A:200 , HG A:383BINDING SITE FOR RESIDUE HG A 379
07AC7SOFTWAREVAL A:210 , CYS A:214 , HG A:384BINDING SITE FOR RESIDUE HG A 380
08AC8SOFTWARETYR B:156 , TYR B:157 , CYS B:196 , VAL B:200 , HG B:382BINDING SITE FOR RESIDUE HG B 378
09AC9SOFTWARETYR B:194 , CYS B:268 , CYS B:272BINDING SITE FOR RESIDUE HG B 379
10BC1SOFTWAREVAL B:210 , ALA B:213 , CYS B:214 , LEU B:304BINDING SITE FOR RESIDUE HG B 380
11BC2SOFTWARECYS A:305 , GLU A:309BINDING SITE FOR RESIDUE HG A 381
12BC3SOFTWAREMET B:198 , CYS B:272 , LEU B:275 , PHE B:276BINDING SITE FOR RESIDUE HG B 381
13BC4SOFTWARECYS A:268 , GLU A:271BINDING SITE FOR RESIDUE HG A 382
14BC5SOFTWARETYR A:157 , CYS A:196 , VAL A:200 , HG A:379BINDING SITE FOR RESIDUE HG A 383
15BC6SOFTWAREASN A:76 , ARG A:149 , CYS A:214 , HG A:380BINDING SITE FOR RESIDUE HG A 384
16BC7SOFTWARETYR B:157 , CYS B:196 , VAL B:200 , HG B:378BINDING SITE FOR RESIDUE HG B 382
17BC8SOFTWARELYS B:284 , CYS B:305 , GLU B:309BINDING SITE FOR RESIDUE HG B 383
18BC9SOFTWAREASN B:76 , CYS B:214 , TRP B:286 , LEU B:290BINDING SITE FOR RESIDUE HG B 384

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (1, 2)

Asymmetric/Biological Unit (1, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1RIBORED_SMALLPS00368 Ribonucleotide reductase small subunit signature.RIR2_ECOLI115-131
 		  2A:114-130
B:114-130

(-) Exons   (0, 0)

(no "Exon" information available for 1PIY)

(-) Sequences/Alignments

Asymmetric/Biological 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:340
 aligned with RIR2_ECOLI | P69924 from UniProtKB/Swiss-Prot  Length:376

    Alignment length:340
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341
           RIR2_ECOLI     2 AYTTFSQTKNDQLKEPMFFGQPVNVARYDQQKYDIFEKLIEKQLSFFWRPEEVDVSRDRIDYQALPEHEKHIFISNLKYQTLLDSIQGRSPNVALLPLISIPELETWVETWAFSETIHSRSYTHIIRNIVNDPSVVFDDIVTNEQIQKRAEGISSYYDELIEMTSYWHLLGEGTHTVNGKTVTVSLRELKKKLYLCLMSVNALEAIRFYVSFACSFAFAERELMEGNAKIIRLIARDEALHLTGTQHMLNLLRSGADDPEMAEIAEECKQECYDLFVQAAQQEKDWADYLFRDGSMIGLNKDILCQYVEYITNIRMQAVGLDLPFQTRSNPIPWINTWLV 341
               SCOP domains d1piya_ A: Ribonucleotide reductase R2                                                                                                                                                                                                                                                                                                               SCOP domains
               CATH domains 1piyA00 A:1-340 Ribonucleotide Reductase, subunit A                                                                                                                                                                                                                                                                                                  CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..........hhhhh.................hhhhhhhhhhhhhh..hhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.eeeee..eeeeehhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh........hhhhhhhhhhhhhhhhhhhh............hhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -----------------------------------------------------------------------------------------------------------------RIBORED_SMALL    ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1piy A   1 AYTTFSQTKNDQLKEPMFFGQPVNVARYDQQKYDIFEKLIEKQLSFFWRPEEVDVSRDRIDYQALPEHEKHIFISNLKYQTLLDSIQGRSPNVALLPLISIPELETWVETWAFSETIHSRSYTHIIRNIVNDPSVVFDDIVTNEQIQKRAEGISSYYDELIEMTSYWHLLGEGTHTVNGKTVTVSLRELKKKLYLCLMSVNALEAIRFYVSFACSFAFAERELMEGNAKIIRLIARDEALHLTGTQHMLNLLRSGADDPEMAEIAEECKQECYDLFVQAAQQEKDWADYLFRDGSMIGLNKDILCQYVEYITNIRMQAVGLDLPFNTRSNPIPWINTWLV 340
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300       310       320       330       340


Chain B from PDB  Type:PROTEIN  Length:340
 aligned with RIR2_ECOLI | P69924 from UniProtKB/Swiss-Prot  Length:376

    Alignment length:340
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341
           RIR2_ECOLI     2 AYTTFSQTKNDQLKEPMFFGQPVNVARYDQQKYDIFEKLIEKQLSFFWRPEEVDVSRDRIDYQALPEHEKHIFISNLKYQTLLDSIQGRSPNVALLPLISIPELETWVETWAFSETIHSRSYTHIIRNIVNDPSVVFDDIVTNEQIQKRAEGISSYYDELIEMTSYWHLLGEGTHTVNGKTVTVSLRELKKKLYLCLMSVNALEAIRFYVSFACSFAFAERELMEGNAKIIRLIARDEALHLTGTQHMLNLLRSGADDPEMAEIAEECKQECYDLFVQAAQQEKDWADYLFRDGSMIGLNKDILCQYVEYITNIRMQAVGLDLPFQTRSNPIPWINTWLV 341
               SCOP domains d1piyb_ B: Ribonucleotide reductase R2                                                                                                                                                                                                                                                                                                               SCOP domains
               CATH domains 1piyB00 B:1-340 Ribonucleotide Reductase, subunit A                                                                                                                                                                                                                                                                                                  CATH domains
           Pfam domains (1) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Ribonuc_red_sm-1piyB01 B:181-335                                                                                                                           ----- Pfam domains (1)
           Pfam domains (2) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Ribonuc_red_sm-1piyB02 B:181-335                                                                                                                           ----- Pfam domains (2)
           Pfam domains (3) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Ribonuc_red_sm-1piyB03 B:181-335                                                                                                                           ----- Pfam domains (3)
           Pfam domains (4) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Ribonuc_red_sm-1piyB04 B:181-335                                                                                                                           ----- Pfam domains (4)
         Sec.struct. author ................................hhhhhhhhhhhhhh..hhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.eeeee..eeeeehhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh........hhhhhhhhhhhhhhhhhhhh............hhhhhhh.. Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -----------------------------------------------------------------------------------------------------------------RIBORED_SMALL    ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1piy B   1 AYTTFSQTKNDQLKEPMFFGQPVNVARYDQQKYDIFEKLIEKQLSFFWRPEEVDVSRDRIDYQALPEHEKHIFISNLKYQTLLDSIQGRSPNVALLPLISIPELETWVETWAFSETIHSRSYTHIIRNIVNDPSVVFDDIVTNEQIQKRAEGISSYYDELIEMTSYWHLLGEGTHTVNGKTVTVSLRELKKKLYLCLMSVNALEAIRFYVSFACSFAFAERELMEGNAKIIRLIARDEALHLTGTQHMLNLLRSGADDPEMAEIAEECKQECYDLFVQAAQQEKDWADYLFRDGSMIGLNKDILCQYVEYITNIRMQAVGLDLPFNTRSNPIPWINTWLV 340
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300       310       320       330       340
   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 '|'

 Classification and Annotation

(-) SCOP Domains  (1, 2)

Asymmetric/Biological Unit
(-)
Class: All alpha proteins (14657)

(-) CATH Domains  (1, 2)

Asymmetric/Biological Unit
(-)
Class: Mainly Alpha (13335)

(-) Pfam Domains  (1, 4)

Asymmetric/Biological Unit
(-)
Clan: Ferritin (185)

(-) Gene Ontology  (13, 13)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A,B   (RIR2_ECOLI | P69924)
molecular function
    GO:0042802    identical protein binding    Interacting selectively and non-covalently with an identical protein or proteins.
    GO:0005506    iron ion binding    Interacting selectively and non-covalently with iron (Fe) ions.
    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: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:0015949    nucleobase-containing small molecule interconversion    The chemical reactions and pathways by which a nucleobase, nucleoside or nucleotide small molecule is synthesized from another nucleobase, nucleoside or nucleotide small molecule.
    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:0005829    cytosol    The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
    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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  1piy
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  RIR2_ECOLI | P69924
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  1.17.4.1
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 Related Entries

(-) Entries Sharing at Least One Protein Chain (UniProt ID)

UniProtKB/Swiss-Prot
        RIR2_ECOLI | P69924: 1av8 1biq 1jpr 1jqc 1mrr 1mxr 1pfr 1pim 1piu 1piz 1pj0 1pj1 1pm2 1r1r 1r65 1rib 1rnr 1rsr 1rsv 1xik 1yfd 2alx 2av8 2r1r 2x0x 2xak 2xap 2xav 2xaw 2xax 2xay 2xaz 2xo4 2xo5 2xof 3r1r 3uus 4erm 4erp 4r1r 5ci2 5ci3 5cns 5cnt 5cnu 5cnv 5r1r 6r1r 7r1r

(-) Related Entries Specified in the PDB File

1pim 1piu 1piz 1pj0 1pj1