View source for 4v1c


==sirtuin 3==
<StructureSection load='4v1c' size='340' side='right' caption='[[4v1c]], [[Resolution|resolution]] 2.95&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[4v1c]] is a 12 chain structure with sequence from [http://en.wikipedia.org/wiki/ ] and [http://en.wikipedia.org/wiki/Synthetic_construct Synthetic construct]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4V1C OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4V1C FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=BTK:N~6~-BUTANOYL-L-LYSINE'>BTK</scene></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=4v1c FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4v1c OCA], [http://pdbe.org/4v1c PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4v1c RCSB], [http://www.ebi.ac.uk/pdbsum/4v1c PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4v1c ProSAT]</span></td></tr>
</table>
== Function ==
[[http://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 ==
Posttranslational modifications (PTMs) play a crucial role in a wide range of biological processes. Lysine crotonylation (Kcr) is a newly discovered histone PTM that is enriched at active gene promoters and potential enhancers in mammalian cell genomes. However, the cellular enzymes that regulate the addition and removal of Kcr are unknown, which has hindered further investigation of its cellular functions. Here we used a chemical proteomics approach to comprehensively profile 'eraser' enzymes that recognize a lysine-4 crotonylated histone H3 (H3K4Cr) mark. We found that Sirt1, Sirt2, and Sirt3 can catalyze the hydrolysis of lysine crotonylated histone peptides and proteins. More importantly, Sirt3 functions as a decrotonylase to regulate histone Kcr dynamics and gene transcription in living cells. This discovery not only opens opportunities for examining the physiological significance of histone Kcr, but also helps to unravel the unknown cellular mechanisms controlled by Sirt3, that have previously been considered solely as a deacetylase.

Identification of 'erasers' for lysine crotonylated histone marks using a chemical proteomics approach.,Bao X, Wang Y, Li X, Li XM, Liu Z, Yang T, Wong CF, Zhang J, Hao Q, Li XD Elife. 2014 Nov 4;3. doi: 10.7554/eLife.02999. PMID:25369635<ref>PMID:25369635</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 4v1c" style="background-color:#fffaf0;"></div>

==See Also==
*[[Histone deacetylase|Histone deacetylase]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Synthetic construct]]
[[Category: Hao, Q]]
[[Category: Wang, Y]]
[[Category: Acyl]]
[[Category: Adpr]]
[[Category: Hdac]]
[[Category: Hydrolase]]
[[Category: Nad dependent]]