3dx4: Difference between revisions
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New page: '''Unreleased structure''' The entry 3dx4 is ON HOLD until Paper Publication Authors: Kuntz, D.A., Rose, D.R. Description: Golgi alpha-Mannosidase II in complex with Mannostatin analog... |
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==Golgi alpha-Mannosidase II in complex with Mannostatin analog (1R,2R,3R,4S,5R)-4-amino-5-methoxycyclopentane-1,2,3-triol== | |||
<StructureSection load='3dx4' size='340' side='right'caption='[[3dx4]], [[Resolution|resolution]] 1.38Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[3dx4]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Drosophila_melanogaster Drosophila melanogaster]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3DX4 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3DX4 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]] 1.38Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=GOO:(1R,2R,3R,4S,5R)-4-AMINO-5-METHOXYCYCLOPENTANE-1,2,3-TRIOL'>GOO</scene>, <scene name='pdbligand=MRD:(4R)-2-METHYLPENTANE-2,4-DIOL'>MRD</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</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=3dx4 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3dx4 OCA], [https://pdbe.org/3dx4 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3dx4 RCSB], [https://www.ebi.ac.uk/pdbsum/3dx4 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3dx4 ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/MAN2_DROME MAN2_DROME] Catalyzes the first committed step in the biosynthesis of complex N-glycans. It controls conversion of high mannose to complex N-glycans; the final hydrolytic step in the N-glycan maturation pathway (By similarity). | |||
== 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/dx/3dx4_consurf.spt"</scriptWhenChecked> | |||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.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=3dx4 ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Mannostatin A is a potent inhibitor of the mannose-trimming enzyme, Golgi alpha-mannosidase II (GMII), which acts late in the N-glycan processing pathway. Inhibition of this enzyme provides a route to blocking the transformation-associated changes in cancer cell surface oligosaccharide structures. Here, we report on the synthesis of new Mannostatin derivatives and analyze their binding in the active site of Drosophila GMII by X-ray crystallography. The results indicate that the interaction with the backbone carbonyl of Arg876 is crucial to the high potency of the inhibitor-an effect enhanced by the hydrophobic interaction between the thiomethyl group and an aromatic pocket vicinal to the cleavage site. The various structures indicate that differences in the hydration of protein-ligand complexes are also important determinants of plasticity as well as selectivity of inhibitor binding. | |||
The molecular basis of inhibition of Golgi alpha-mannosidase II by mannostatin A.,Kuntz DA, Zhong W, Guo J, Rose DR, Boons GJ Chembiochem. 2009 Jan 26;10(2):268-77. PMID:19101978<ref>PMID:19101978</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 3dx4" style="background-color:#fffaf0;"></div> | |||
==See Also== | |||
*[[Mannosidase 3D structures|Mannosidase 3D structures]] | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Drosophila melanogaster]] | |||
[[Category: Large Structures]] | |||
[[Category: Kuntz DA]] | |||
[[Category: Rose DR]] | |||
Latest revision as of 09:01, 30 October 2024
Golgi alpha-Mannosidase II in complex with Mannostatin analog (1R,2R,3R,4S,5R)-4-amino-5-methoxycyclopentane-1,2,3-triol
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