3e5x: Difference between revisions
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[[Image: | ==OCPA complexed CprK== | ||
<StructureSection load='3e5x' size='340' side='right' caption='[[3e5x]], [[Resolution|resolution]] 2.00Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[3e5x]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Desulfitobacterium_hafniense Desulfitobacterium hafniense]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3E5X OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3E5X FirstGlance]. <br> | |||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=3C4:(3-CHLORO-4-HYDROXYPHENYL)ACETIC+ACID'>3C4</scene></td></tr> | |||
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3e5q|3e5q]], [[3e5u|3e5u]], [[3e6b|3e6b]], [[3e6c|3e6c]], [[3e6d|3e6d]]</td></tr> | |||
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">Dhaf_0678 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=49338 Desulfitobacterium hafniense])</td></tr> | |||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3e5x FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3e5x OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3e5x RCSB], [http://www.ebi.ac.uk/pdbsum/3e5x PDBsum]</span></td></tr> | |||
</table> | |||
== 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/e5/3e5x_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/chain_selection.php?pdb_ID=2ata ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Certain bacteria are able to conserve energy via the reductive dehalogenation of halo-organic compounds in a respiration-type metabolism. The transcriptional regulator CprK from Desulfitobacterium spp. induces expression of halorespiratory genes upon binding of o-chlorophenol ligands and is reversibly inactivated by oxygen through disulphide bond formation. We report crystal structures of D. hafniense CprK in the ligand-free (both oxidation states), ligand-bound (reduced) and DNA-bound states, making it the first member of the widespread CRP-FNR superfamily for which a complete structural description of both redox-dependent and allosteric molecular rearrangements is available. In conjunction with kinetic and thermodynamic ligand binding studies, we provide a model for the allosteric mechanisms underpinning transcriptional control. Amino acids that play a key role in this mechanism are not conserved in functionally distinct CRP-FNR members. This suggests that, despite significant structural homology, distinct allosteric mechanisms are used, enabling this protein family to control a very wide range of processes. | |||
Molecular basis of halorespiration control by CprK, a CRP-FNR type transcriptional regulator.,Levy C, Pike K, Heyes DJ, Joyce MG, Gabor K, Smidt H, van der Oost J, Leys D Mol Microbiol. 2008 Oct;70(1):151-67. Epub 2008 Aug 20. PMID:18717788<ref>PMID:18717788</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
== | |||
< | |||
[[Category: Desulfitobacterium hafniense]] | [[Category: Desulfitobacterium hafniense]] | ||
[[Category: Levy, C | [[Category: Levy, C]] | ||
[[Category: Cprk]] | [[Category: Cprk]] | ||
[[Category: Halorespiration]] | [[Category: Halorespiration]] | ||
[[Category: Transcription regulation]] | [[Category: Transcription regulation]] | ||
[[Category: Transcriptional regulator]] | [[Category: Transcriptional regulator]] |