4c78
From Proteopedia
(Difference between revisions)
| Line 4: | Line 4: | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[4c78]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4C78 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4C78 FirstGlance]. <br> | <table><tr><td colspan='2'>[[4c78]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4C78 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4C78 FirstGlance]. <br> | ||
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ALY:N(6)-ACETYLLYSINE'>ALY</scene>, <scene name='pdbligand=BVB:5-[(E)-2-(4-BROMOPHENYL)ETHENYL]BENZENE-1,3-DIOL'>BVB</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2Å</td></tr> |
| + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ALY:N(6)-ACETYLLYSINE'>ALY</scene>, <scene name='pdbligand=BVB:5-[(E)-2-(4-BROMOPHENYL)ETHENYL]BENZENE-1,3-DIOL'>BVB</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=4c78 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4c78 OCA], [https://pdbe.org/4c78 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4c78 RCSB], [https://www.ebi.ac.uk/pdbsum/4c78 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4c78 ProSAT]</span></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=4c78 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4c78 OCA], [https://pdbe.org/4c78 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4c78 RCSB], [https://www.ebi.ac.uk/pdbsum/4c78 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4c78 ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Function == | == 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 4c78" style="background-color:#fffaf0;"></div> | ||
==See Also== | ==See Also== | ||
Current revision
Complex of human Sirt3 with Bromo-Resveratrol and ACS2 peptide
| |||||||||||
