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1rlr

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[[Image:1rlr.jpg|left|200px]]<br /><applet load="1rlr" size="350" color="white" frame="true" align="right" spinBox="true"
 
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caption="1rlr, resolution 2.5&Aring;" />
 
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'''STRUCTURE OF RIBONUCLEOTIDE REDUCTASE PROTEIN R1'''<br />
 
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==Overview==
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==STRUCTURE OF RIBONUCLEOTIDE REDUCTASE PROTEIN R1==
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Ribonucleotide reductase is the only enzyme that catalyses de novo formation of deoxyribonucleotides and is thus a key enzyme in DNA synthesis. The radical-based reaction involves five cysteins. Two redox-active cysteines are located at adjacent antiparallel strands in a new type of ten-stranded alpha/beta-barrel, and two others at the carboxyl end in a flexible arm. The fifth cysteine, in a loop in the centre of the barrel, is positioned to initiate the radical reaction.
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<StructureSection load='1rlr' size='340' side='right'caption='[[1rlr]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1rlr]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1RLR OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1RLR FirstGlance]. <br>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.5&#8491;</td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1rlr FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1rlr OCA], [https://pdbe.org/1rlr PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1rlr RCSB], [https://www.ebi.ac.uk/pdbsum/1rlr PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1rlr ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/RIR1_ECOLI RIR1_ECOLI] Provides the precursors necessary for DNA synthesis. Catalyzes the biosynthesis of deoxyribonucleotides from the corresponding ribonucleotides. R1 contains the binding sites for both substrates and allosteric effectors and carries out the actual reduction of the ribonucleotide. It also provides redox-active cysteines.
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/rl/1rlr_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1rlr ConSurf].
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<div style="clear:both"></div>
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==About this Structure==
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==See Also==
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1RLR is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Active as [http://en.wikipedia.org/wiki/Ribonucleoside-diphosphate_reductase Ribonucleoside-diphosphate reductase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.17.4.1 1.17.4.1] Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1RLR OCA].
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*[[Ribonucleotide reductase 3D structures|Ribonucleotide reductase 3D structures]]
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__TOC__
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==Reference==
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</StructureSection>
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Structure of ribonucleotide reductase protein R1., Uhlin U, Eklund H, Nature. 1994 Aug 18;370(6490):533-9. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=8052308 8052308]
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[[Category: Escherichia coli]]
[[Category: Escherichia coli]]
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[[Category: Ribonucleoside-diphosphate reductase]]
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[[Category: Large Structures]]
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[[Category: Single protein]]
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[[Category: Eklund H]]
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[[Category: Eklund, H.]]
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[[Category: Uhlin U]]
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[[Category: Uhlin, U.]]
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[[Category: oxidoreductase]]
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[[Category: reductase (acting on ch2)]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 14:52:15 2008''
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Current revision

STRUCTURE OF RIBONUCLEOTIDE REDUCTASE PROTEIN R1

PDB ID 1rlr

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