2o20: Difference between revisions

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[[Image:2o20.gif|left|200px]]<br /><applet load="2o20" size="350" color="white" frame="true" align="right" spinBox="true"
caption="2o20, resolution 1.90&Aring;" />
'''Crystal structure of transcription regulator CcpA of Lactococcus lactis'''<br />


==About this Structure==
==Crystal structure of transcription regulator CcpA of Lactococcus lactis==
2O20 is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Lactococcus_lactis Lactococcus lactis] with <scene name='pdbligand=SO4:'>SO4</scene> and <scene name='pdbligand=CL:'>CL</scene> as [http://en.wikipedia.org/wiki/ligands ligands]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2O20 OCA].  
<StructureSection load='2o20' size='340' side='right'caption='[[2o20]], [[Resolution|resolution]] 1.90&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[2o20]] is a 8 chain structure with sequence from [https://en.wikipedia.org/wiki/Lactococcus_lactis Lactococcus lactis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2O20 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2O20 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]] 1.9&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</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=2o20 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2o20 OCA], [https://pdbe.org/2o20 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2o20 RCSB], [https://www.ebi.ac.uk/pdbsum/2o20 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2o20 ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/Q9CF33_LACLA Q9CF33_LACLA]
== 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/o2/2o20_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=2o20 ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Catabolite control protein A (CcpA) functions as master transcriptional regulator of carbon catabolism in Firmicutes. It belongs to the family of bacterial repressor/regulator proteins. Here, the crystal structure of the 76 kDa homodimeric CcpA protein from Lactococcus lactis subsp. lactis IL1403 is presented at 1.9 A resolution in the absence of cognate DNA. The phases were derived by molecular replacement and the structure was refined to crystallographic R and R(free) factors of 0.177 and 0.211, respectively. The presence of a sulfate molecule in the direct vicinity of a putative effector-binding site in the monomer allowed the derivation of a model for the possible binding of small organic effector molecules.
 
Structure of the transcription regulator CcpA from Lactococcus lactis.,Loll B, Kowalczyk M, Alings C, Chieduch A, Bardowski J, Saenger W, Biesiadka J Acta Crystallogr D Biol Crystallogr. 2007 Apr;63(Pt 4):431-6. Epub 2007, Mar 16. PMID:17372346<ref>PMID:17372346</ref>
 
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 2o20" style="background-color:#fffaf0;"></div>
 
==See Also==
*[[Catabolite control protein 3D structures|Catabolite control protein 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Lactococcus lactis]]
[[Category: Lactococcus lactis]]
[[Category: Single protein]]
[[Category: Large Structures]]
[[Category: Alings, C.]]
[[Category: Alings C]]
[[Category: Bardowski, J.]]
[[Category: Bardowski J]]
[[Category: Biesiadka, J.]]
[[Category: Biesiadka J]]
[[Category: Chieduch, A.]]
[[Category: Chieduch A]]
[[Category: Kowalczyk, M.]]
[[Category: Kowalczyk M]]
[[Category: Loll, B.]]
[[Category: Loll B]]
[[Category: Saenger, W.]]
[[Category: Saenger W]]
[[Category: CL]]
[[Category: SO4]]
[[Category: ccpa]]
[[Category: helix-turn-helix]]
[[Category: transcriptional regulator]]
 
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