This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.

Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.


2od9

From Proteopedia

(Difference between revisions)
Jump to: navigation, search
Current revision (10:36, 30 August 2023) (edit) (undo)
 
(9 intermediate revisions not shown.)
Line 1: Line 1:
-
{{Seed}}
 
-
[[Image:2od9.png|left|200px]]
 
-
<!--
+
==Structural Basis for Nicotinamide Inhibition and Base Exchange in Sir2 Enzymes==
-
The line below this paragraph, containing "STRUCTURE_2od9", creates the "Structure Box" on the page.
+
<StructureSection load='2od9' size='340' side='right'caption='[[2od9]], [[Resolution|resolution]] 2.05&Aring;' scene=''>
-
You may change the PDB parameter (which sets the PDB file loaded into the applet)
+
== Structural highlights ==
-
or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
+
<table><tr><td colspan='2'>[[2od9]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2OD9 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2OD9 FirstGlance]. <br>
-
or leave the SCENE parameter empty for the default display.
+
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.05&#8491;</td></tr>
-
-->
+
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=A1R:5-O-[(S)-{[(S)-{[(2R,3R,4S)-3,4-DIHYDROXYPYRROLIDIN-2-YL]METHOXY}(HYDROXY)PHOSPHORYL]OXY}(HYDROXY)PHOSPHORYL]ADENOSINE'>A1R</scene>, <scene name='pdbligand=ALY:N(6)-ACETYLLYSINE'>ALY</scene>, <scene name='pdbligand=NCA:NICOTINAMIDE'>NCA</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
-
{{STRUCTURE_2od9| PDB=2od9 | SCENE= }}
+
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2od9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2od9 OCA], [https://pdbe.org/2od9 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2od9 RCSB], [https://www.ebi.ac.uk/pdbsum/2od9 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2od9 ProSAT]</span></td></tr>
 +
</table>
 +
== Function ==
 +
[https://www.uniprot.org/uniprot/HST2_YEAST HST2_YEAST] NAD-dependent histone deacetylase that is involved in nuclear silencing events. Derepresses subtelomeric silencing and increases repression in nucleolar (rDNA) silencing. Its function is negatively regulated by active nuclear export.<ref>PMID:10811920</ref> <ref>PMID:11106374</ref> <ref>PMID:11226170</ref> <ref>PMID:15274642</ref> <ref>PMID:17110954</ref>
 +
== 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/od/2od9_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=2od9 ConSurf].
 +
<div style="clear:both"></div>
 +
<div style="background-color:#fffaf0;">
 +
== Publication Abstract from PubMed ==
 +
The Sir2 family of proteins consists of broadly conserved NAD(+)-dependent deacetylases that are implicated in diverse biological processes, including DNA regulation, metabolism, and longevity. Sir2 proteins are regulated in part by the cellular concentrations of a noncompetitive inhibitor, nicotinamide, that reacts with a Sir2 reaction intermediate via a base-exchange reaction to reform NAD(+) at the expense of deacetylation. To gain a mechanistic understanding of nicotinamide inhibition in Sir2 enzymes, we captured the structure of nicotinamide bound to a Sir2 homolog, yeast Hst2, in complex with its acetyl-lysine 16 histone H4 substrate and a reaction intermediate analog, ADP-HPD. Together with related biochemical studies and structures, we identify a nicotinamide inhibition and base-exchange site that is distinct from the so-called "C pocket" binding site for the nicotinamide group of NAD(+). These results provide insights into the Sir2 mechanism of nicotinamide inhibition and have important implications for the development of Sir2-specific effectors.
-
===Structural Basis for Nicotinamide Inhibition and Base Exchange in Sir2 Enzymes===
+
Structural basis for nicotinamide inhibition and base exchange in Sir2 enzymes.,Sanders BD, Zhao K, Slama JT, Marmorstein R Mol Cell. 2007 Feb 9;25(3):463-72. PMID:17289592<ref>PMID:17289592</ref>
-
 
+
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
-
<!--
+
</div>
-
The line below this paragraph, {{ABSTRACT_PUBMED_17289592}}, adds the Publication Abstract to the page
+
<div class="pdbe-citations 2od9" style="background-color:#fffaf0;"></div>
-
(as it appears on PubMed at http://www.pubmed.gov), where 17289592 is the PubMed ID number.
+
== References ==
-
-->
+
<references/>
-
{{ABSTRACT_PUBMED_17289592}}
+
__TOC__
-
 
+
</StructureSection>
-
==About this Structure==
+
[[Category: Large Structures]]
-
2OD9 is a 2 chains structure of sequences from [http://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2OD9 OCA].
+
-
 
+
-
==Reference==
+
-
<ref group="xtra">PMID:17289592</ref><references group="xtra"/>
+
[[Category: Saccharomyces cerevisiae]]
[[Category: Saccharomyces cerevisiae]]
-
[[Category: Marmorstein, R.]]
+
[[Category: Marmorstein R]]
-
[[Category: Sanders, B D.]]
+
[[Category: Sanders BD]]
-
[[Category: Rossmann fold]]
+
-
[[Category: Zn binding protein]]
+
-
 
+
-
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Feb 16 15:14:41 2009''
+

Current revision

Structural Basis for Nicotinamide Inhibition and Base Exchange in Sir2 Enzymes

PDB ID 2od9

Drag the structure with the mouse to rotate

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/2od9"
Personal tools