1bdh: Difference between revisions

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-[[Image:1bdh.png|left|200px]]
-{{STRUCTURE_1bdh|  PDB=1bdh  |  SCENE=  }}
+==PURINE REPRESSOR MUTANT-HYPOXANTHINE-PALINDROMIC OPERATOR COMPLEX==
+<StructureSection load='1bdh' size='340' side='right'caption='[[1bdh]], [[Resolution|resolution]] 2.70&Aring;' scene=''>
+== Structural highlights ==
+<table><tr><td colspan='2'>[[1bdh]] 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=1BDH OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1BDH FirstGlance]. <br>
+</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>
+<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=HPA:HYPOXANTHINE'>HPA</scene></td></tr>
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1bdh FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1bdh OCA], [https://pdbe.org/1bdh PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1bdh RCSB], [https://www.ebi.ac.uk/pdbsum/1bdh PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1bdh ProSAT]</span></td></tr>
+</table>
+== Function ==
+[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>
+== Evolutionary Conservation ==
+[[Image:Consurf_key_small.gif|200px|right]]
+Check<jmol>
+  <jmolCheckbox>
+    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/bd/1bdh_consurf.spt"</scriptWhenChecked>
+    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
+    <text>to colour the structure by Evolutionary Conservation</text>
+  </jmolCheckbox>
+</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=1bdh ConSurf].
+<div style="clear:both"></div>
-===PURINE REPRESSOR MUTANT-HYPOXANTHINE-PALINDROMIC OPERATOR COMPLEX===
+==See Also==
+*[[Purine repressor|Purine repressor]]
-{{ABSTRACT_PUBMED_015048824}}
+== References ==
+<references/>
-==About this Structure==
+__TOC__
-[[1bdh]] is a 2 chain structure with sequence 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=1BDH OCA].
+</StructureSection>
-==Reference==
-<ref group="xtra">PMID:015048824</ref><references group="xtra"/>
 [[Category: Escherichia coli]]
-[[Category: Brennan, R G.]]
+[[Category: Large Structures]]
-[[Category: Choi, K Y.]]
+[[Category: Brennan RG]]
-[[Category: Glasfeld, A.]]
+[[Category: Choi KY]]
-[[Category: Schumacher, M A.]]
+[[Category: Glasfeld A]]
-[[Category: Zalkin, H.]]
+[[Category: Schumacher MA]]
-[[Category: Dna-binding]]
+[[Category: Zalkin H]]
-[[Category: Purine biosynthesis]]
-[[Category: Repressor]]
-[[Category: Transcription regulation]]
-[[Category: Transcription-dna complex]]