View source for 4pct


==Crystal structure of a bacterial fucosidase with iminocyclitol (2S,3S,4R,5S)-3,4-dihydroxy-2-ethynyl-5-methylpyrrolidine==
<StructureSection load='4pct' size='340' side='right'caption='[[4pct]], [[Resolution|resolution]] 2.10&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[4pct]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Bacteroides_thetaiotaomicron_VPI-5482 Bacteroides thetaiotaomicron VPI-5482]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4PCT OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4PCT 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]] 2.1&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=H76:(2S,3S,4R,5S)-2-ETHYNYL-5-METHYLPYRROLIDINE-3,4-DIOL'>H76</scene>, <scene name='pdbligand=IMD:IMIDAZOLE'>IMD</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</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=4pct FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4pct OCA], [https://pdbe.org/4pct PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4pct RCSB], [https://www.ebi.ac.uk/pdbsum/4pct PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4pct ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/Q8A3I4_BACTN Q8A3I4_BACTN] 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Fucosidase inhibition shows potential in numerous therapeutic contexts. Substitution of fucose-like iminosugars with hydrophobic "aglycons" yields significant improvements in potency of fucosidase inhibition. Here we have prepared three new 2-aryl-3,4-dihydroxy-5-methylpyrrolidines featuring phenyl substituents in variable orientations with respect to the iminocyclitol core and at various distances from it to explore the key binding interactions that stabilise the enzyme-inhibitor complex. The presence of a triazole linker in one structure resulted in nanomolar inhibition of the fucosidase from bovine kidney (Ki =4.8 nM), thus giving rise to one of the most potent pyrrolidine-type inhibitors of this enzyme known to date.

Exploiting the Hydrophobic Terrain in Fucosidases with Aryl-Substituted Pyrrolidine Iminosugars.,Hottin A, Wright DW, Davies GJ, Behr JB Chembiochem. 2014 Nov 26. doi: 10.1002/cbic.201402509. PMID:25427942<ref>PMID:25427942</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 4pct" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Bacteroides thetaiotaomicron VPI-5482]]
[[Category: Large Structures]]
[[Category: Davies GJ]]
[[Category: Wright DW]]