3lfo
From Proteopedia
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- | [[Image:3lfo.png|left|200px]] | ||
- | < | + | ==Crystal structure of T. celer L30e E90A/R92A variant== |
- | + | <StructureSection load='3lfo' size='340' side='right'caption='[[3lfo]], [[Resolution|resolution]] 1.80Å' scene=''> | |
- | You may | + | == Structural highlights == |
- | + | <table><tr><td colspan='2'>[[3lfo]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Thermococcus_celer Thermococcus celer]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3LFO OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3LFO 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]] 1.8Å</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=3lfo FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3lfo OCA], [https://pdbe.org/3lfo PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3lfo RCSB], [https://www.ebi.ac.uk/pdbsum/3lfo PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3lfo ProSAT]</span></td></tr> |
- | + | </table> | |
+ | == Function == | ||
+ | [https://www.uniprot.org/uniprot/RL30E_THECE RL30E_THECE] | ||
+ | == 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/lf/3lfo_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=3lfo ConSurf]. | ||
+ | <div style="clear:both"></div> | ||
+ | <div style="background-color:#fffaf0;"> | ||
+ | == Publication Abstract from PubMed == | ||
+ | Most thermophilic proteins tend to have more salt bridges, and achieve higher thermostability by up-shifting and broadening their protein stability curves. While the stabilizing effect of salt-bridge has been extensively studied, experimental data on how salt-bridge influences protein stability curves are scarce. Here, we used double mutant cycles to determine the temperature-dependency of the pair-wise interaction energy and the contribution of salt-bridges to DeltaC(p) in a thermophilic ribosomal protein L30e. Our results showed that the pair-wise interaction energies for the salt-bridges E6/R92 and E62/K46 were stabilizing and insensitive to temperature changes from 298 to 348 K. On the other hand, the pair-wise interaction energies between the control long-range ion-pair of E90/R92 were negligible. The DeltaC(p) of all single and double mutants were determined by Gibbs-Helmholtz and Kirchhoff analyses. We showed that the two stabilizing salt-bridges contributed to a reduction of DeltaC(p) by 0.8-1.0 kJ mol(1) K(1). Taken together, our results suggest that the extra salt-bridges found in thermophilic proteins enhance the thermostability of proteins by reducing DeltaC(p), leading to the up-shifting and broadening of the protein stability curves. | ||
- | + | Stabilizing salt-bridge enhances protein thermostability by reducing the heat capacity change of unfolding.,Chan CH, Yu TH, Wong KB PLoS One. 2011;6(6):e21624. Epub 2011 Jun 24. PMID:21720566<ref>PMID:21720566</ref> | |
- | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
- | + | </div> | |
- | + | <div class="pdbe-citations 3lfo" style="background-color:#fffaf0;"></div> | |
- | + | == References == | |
- | + | <references/> | |
- | + | __TOC__ | |
- | + | </StructureSection> | |
- | == | + | [[Category: Large Structures]] |
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- | + | ||
- | == | + | |
- | < | + | |
[[Category: Thermococcus celer]] | [[Category: Thermococcus celer]] | ||
- | [[Category: Chan | + | [[Category: Chan CH]] |
- | [[Category: Wong | + | [[Category: Wong KB]] |
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Current revision
Crystal structure of T. celer L30e E90A/R92A variant
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