4c7b: Difference between revisions
New page: '''Unreleased structure''' The entry 4c7b is ON HOLD until sometime in the future Authors: Nguyen, G.T.T., Gertz, M., Weyand, M., Steegborn, C. Description: Complex of human Sirt3 with... |
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The | ==Complex of human Sirt3 with Bromo-Resveratrol and Fluor-De-Lys peptide== | ||
<StructureSection load='4c7b' size='340' side='right'caption='[[4c7b]], [[Resolution|resolution]] 2.10Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[4c7b]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [https://en.wikipedia.org/wiki/Synthetic_construct Synthetic construct]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4C7B OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4C7B 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]] 2.1Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=BVB:5-[(E)-2-(4-BROMOPHENYL)ETHENYL]BENZENE-1,3-DIOL'>BVB</scene>, <scene name='pdbligand=FDL:N~6~-ACETYL-N-(4-METHYL-2-OXO-2H-CHROMEN-7-YL)-L-LYSINAMIDE'>FDL</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=IPA:ISOPROPYL+ALCOHOL'>IPA</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</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=4c7b FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4c7b OCA], [https://pdbe.org/4c7b PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4c7b RCSB], [https://www.ebi.ac.uk/pdbsum/4c7b PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4c7b ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/SIR3_HUMAN SIR3_HUMAN] NAD-dependent protein deacetylase. Activates mitochondrial target proteins, including ACSS1, IDH2 and GDH by deacetylating key lysine residues. Contributes to the regulation of the cellular energy metabolism. Important for regulating tissue-specific ATP levels.<ref>PMID:16788062</ref> <ref>PMID:18680753</ref> <ref>PMID:18794531</ref> <ref>PMID:19535340</ref> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Sirtuins are protein deacetylases regulating aging processes and various physiological functions. Resveratrol, a polyphenol found in red wine, activates human Sirt1 and inhibits Sirt3, and it can mimic calorie restriction effects, such as lifespan extension in lower organisms. The mechanism of Sirtuin modulation by resveratrol is not well understood. We used 4'-bromo-resveratrol (5-(2-(4-hydroxyphenyl)vinyl)-1,3-benzenediol) to study Sirt1 and Sirt3 modulation. Despite its similarity to the Sirt1 activator resveratrol, the compound potently inhibited both, Sirt1 and Sirt3. Crystal structures of Sirt3 in complex with a fluorophore-labeled and with a native substrate peptide, respectively, in presence of 4'-bromo-resveratrol reveal two compound binding sites. Biochemical studies identify the internal site and substrate competition as the mechanism for inhibition, providing a drug target site, and homology modeling suggests that the second, allosteric site might indicate the site for Sirt1 activation. | |||
Crystal structures of sirt3 complexes with 4'-bromo-resveratrol reveal binding sites and inhibition mechanism.,Nguyen GT, Gertz M, Steegborn C Chem Biol. 2013 Nov 21;20(11):1375-85. doi: 10.1016/j.chembiol.2013.09.019. Epub , 2013 Nov 7. PMID:24211137<ref>PMID:24211137</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 4c7b" style="background-color:#fffaf0;"></div> | |||
==See Also== | |||
*[[Histone deacetylase 3D structures|Histone deacetylase 3D structures]] | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Homo sapiens]] | |||
[[Category: Large Structures]] | |||
[[Category: Synthetic construct]] | |||
[[Category: Gertz M]] | |||
[[Category: Nguyen GTT]] | |||
[[Category: Steegborn C]] | |||
[[Category: Weyand M]] | |||