2pue

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{{Seed}}
 
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[[Image:2pue.png|left|200px]]
 
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==CRYSTAL STRUCTURE OF THE LACI FAMILY MEMBER, PURR, BOUND TO DNA: MINOR GROOVE BINDING BY ALPHA HELICES==
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The line below this paragraph, containing "STRUCTURE_2pue", creates the "Structure Box" on the page.
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<StructureSection load='2pue' size='340' side='right'caption='[[2pue]], [[Resolution|resolution]] 2.70&Aring;' scene=''>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[2pue]] is a 2 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=2PUE OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2PUE 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]] 2.7&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ADE:ADENINE'>ADE</scene></td></tr>
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{{STRUCTURE_2pue| PDB=2pue | SCENE= }}
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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=2pue FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2pue OCA], [https://pdbe.org/2pue PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2pue RCSB], [https://www.ebi.ac.uk/pdbsum/2pue PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2pue ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/PURR_ECOLI PURR_ECOLI] Is the main repressor of the genes involved in the de novo synthesis of purine nucleotides, regulating purB, purC, purEK, purF, purHD, purL, purMN and guaBA expression. In addition, it participates in the regulation or coregulation of genes involved in de novo pyrimidine nucleotide biosynthesis, salvage and uptake (pyrC, pyrD, carAB and codBA), and of several genes encoding enzymes necessary for nucleotide and polyamine biosynthesis (prsA, glyA, gcvTHP, speA, glnB). Binds to a 16-bp palindromic sequence located within the promoter region of pur regulon genes. The consensus binding sequence is 5'-ACGCAAACGTTTTCNT-3'. PurR is allosterically activated to bind its cognate DNA by binding the purine corepressors, hypoxanthine or guanine, thereby effecting transcription repression.<ref>PMID:2404765</ref> <ref>PMID:2211500</ref> <ref>PMID:1400170</ref> <ref>PMID:14741201</ref>
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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/pu/2pue_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=2pue ConSurf].
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<div style="clear:both"></div>
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===CRYSTAL STRUCTURE OF THE LACI FAMILY MEMBER, PURR, BOUND TO DNA: MINOR GROOVE BINDING BY ALPHA HELICES===
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==See Also==
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*[[Purine repressor|Purine repressor]]
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== References ==
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<references/>
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__TOC__
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(as it appears on PubMed at http://www.pubmed.gov), where 9454587 is the PubMed ID number.
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</StructureSection>
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{{ABSTRACT_PUBMED_9454587}}
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==About this Structure==
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2PUE is a 2 chains structure of sequences from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2PUE OCA].
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==Reference==
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<ref group="xtra">PMID:9454587</ref><references group="xtra"/>
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[[Category: Escherichia coli]]
[[Category: Escherichia coli]]
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[[Category: Arvidson, D N.]]
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[[Category: Large Structures]]
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[[Category: Brennan, R G.]]
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[[Category: Arvidson DN]]
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[[Category: Haldimann, A.]]
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[[Category: Brennan RG]]
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[[Category: Lu, F.]]
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[[Category: Haldimann A]]
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[[Category: Schumacher, M A.]]
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[[Category: Lu F]]
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[[Category: Wanner, B L.]]
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[[Category: Schumacher MA]]
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[[Category: Zalkin, H.]]
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[[Category: Wanner BL]]
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[[Category: Dna-binding regulatory protein]]
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[[Category: Zalkin H]]
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[[Category: Extended corepressor specificity]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Feb 17 14:47:40 2009''
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Current revision

CRYSTAL STRUCTURE OF THE LACI FAMILY MEMBER, PURR, BOUND TO DNA: MINOR GROOVE BINDING BY ALPHA HELICES

PDB ID 2pue

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