1wv1: Difference between revisions

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[[Image:1wv1.gif|left|200px]]
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{{STRUCTURE_1wv1|  PDB=1wv1  |  SCENE=  }}
'''Crystallographic studies on acyl ureas, a new class of inhibitors of glycogenphosphorylase. Broad specificity of the allosteric site'''


==Crystallographic studies on acyl ureas, a new class of inhibitors of glycogenphosphorylase. Broad specificity of the allosteric site==
<StructureSection load='1wv1' size='340' side='right'caption='[[1wv1]], [[Resolution|resolution]] 2.26&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1wv1]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Oryctolagus_cuniculus Oryctolagus cuniculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1WV1 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1WV1 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]] 2.26&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=BN5:5-[3-({[(2,4-DICHLOROBENZOYL)AMINO]CARBONYL}AMINO)-2-METHYLPHENOXY]PENTANOIC+ACID'>BN5</scene>, <scene name='pdbligand=PLP:PYRIDOXAL-5-PHOSPHATE'>PLP</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=1wv1 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1wv1 OCA], [https://pdbe.org/1wv1 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1wv1 RCSB], [https://www.ebi.ac.uk/pdbsum/1wv1 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1wv1 ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/PYGM_RABIT PYGM_RABIT] Phosphorylase is an important allosteric enzyme in carbohydrate metabolism. Enzymes from different sources differ in their regulatory mechanisms and in their natural substrates. However, all known phosphorylases share catalytic and structural properties.
== 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/wv/1wv1_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=1wv1 ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Acyl ureas were discovered as a novel class of inhibitors for glycogen phosphorylase, a molecular target to control hyperglycemia in type 2 diabetics. This series is exemplified by 6-{2,6-Dichloro- 4-[3-(2-chloro-benzoyl)-ureido]-phenoxy}-hexanoic acid, which inhibits human liver glycogen phosphorylase a with an IC(50) of 2.0 microM. Here we analyze four crystal structures of acyl urea derivatives in complex with rabbit muscle glycogen phosphorylase b to elucidate the mechanism of inhibition of these inhibitors. The structures were determined and refined to 2.26 Angstroms resolution and demonstrate that the inhibitors bind at the allosteric activator site, where the physiological activator AMP binds. Acyl ureas induce conformational changes in the vicinity of the allosteric site. Our findings suggest that acyl ureas inhibit glycogen phosphorylase by direct inhibition of AMP binding and by indirect inhibition of substrate binding through stabilization of the T' state.


==Overview==
Crystallographic studies on acyl ureas, a new class of glycogen phosphorylase inhibitors, as potential antidiabetic drugs.,Oikonomakos NG, Kosmopoulou MN, Chrysina ED, Leonidas DD, Kostas ID, Wendt KU, Klabunde T, Defossa E Protein Sci. 2005 Jul;14(7):1760-71. PMID:15987904<ref>PMID:15987904</ref>
Acyl ureas were discovered as a novel class of inhibitors for glycogen phosphorylase, a molecular target to control hyperglycemia in type 2 diabetics. This series is exemplified by 6-{2,6-Dichloro- 4-[3-(2-chloro-benzoyl)-ureido]-phenoxy}-hexanoic acid, which inhibits human liver glycogen phosphorylase a with an IC(50) of 2.0 microM. Here we analyze four crystal structures of acyl urea derivatives in complex with rabbit muscle glycogen phosphorylase b to elucidate the mechanism of inhibition of these inhibitors. The structures were determined and refined to 2.26 Angstroms resolution and demonstrate that the inhibitors bind at the allosteric activator site, where the physiological activator AMP binds. Acyl ureas induce conformational changes in the vicinity of the allosteric site. Our findings suggest that acyl ureas inhibit glycogen phosphorylase by direct inhibition of AMP binding and by indirect inhibition of substrate binding through stabilization of the T' state.


==About this Structure==
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
1WV1 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Oryctolagus_cuniculus Oryctolagus cuniculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1WV1 OCA].
</div>
<div class="pdbe-citations 1wv1" style="background-color:#fffaf0;"></div>


==Reference==
==See Also==
Crystallographic studies on acyl ureas, a new class of glycogen phosphorylase inhibitors, as potential antidiabetic drugs., Oikonomakos NG, Kosmopoulou MN, Chrysina ED, Leonidas DD, Kostas ID, Wendt KU, Klabunde T, Defossa E, Protein Sci. 2005 Jul;14(7):1760-71. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/15987904 15987904]
*[[Glycogen phosphorylase 3D structures|Glycogen phosphorylase 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Oryctolagus cuniculus]]
[[Category: Oryctolagus cuniculus]]
[[Category: Phosphorylase]]
[[Category: Chrysina ED]]
[[Category: Single protein]]
[[Category: Defossa E]]
[[Category: Chrysina, E D.]]
[[Category: Klabunde T]]
[[Category: Defossa, E.]]
[[Category: Kosmopoulou MN]]
[[Category: Klabunde, T.]]
[[Category: Leonidas DD]]
[[Category: Kosmopoulou, M N.]]
[[Category: Oikonomakos NG]]
[[Category: Leonidas, D D.]]
[[Category: Wendt KU]]
[[Category: Oikonomakos, N G.]]
[[Category: Wendt, K U.]]
[[Category: Glycogenolysis]]
[[Category: Type 2 diabetes]]
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