5m1i: Difference between revisions
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==Structure of GH36 alpha-galactosidase from Thermotoga maritima in a covalent complex with a cyclopropyl carbasugar.== | |||
<StructureSection load='5m1i' size='340' side='right' caption='[[5m1i]], [[Resolution|resolution]] 1.55Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[5m1i]] is a 1 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5M1I OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5M1I FirstGlance]. <br> | |||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=7D8:(1~{R},2~{S},3~{S},4~{S},6~{R})-4-FLUORANYL-1-(HYDROXYMETHYL)BICYCLO[4.1.0]HEPTANE-2,3-DIOL'>7D8</scene>, <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr> | |||
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Alpha-galactosidase Alpha-galactosidase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.2.1.22 3.2.1.22] </span></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=5m1i FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5m1i OCA], [http://pdbe.org/5m1i PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5m1i RCSB], [http://www.ebi.ac.uk/pdbsum/5m1i PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5m1i ProSAT]</span></td></tr> | |||
</table> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Glycoside hydrolases (GHs) have attracted considerable attention as targets for therapeutic agents, and thus mechanism-based inhibitors are of great interest. We report the first structural analysis of a carbocyclic mechanism-based GH inactivator, the results of which show that the two Michaelis complexes are in 2 H3 conformations. We also report the synthesis and reactivity of a fluorinated analogue and the structure of its covalently linked intermediate (flattened 2 H3 half-chair). We conclude that these inactivator reactions mainly involve motion of the pseudo-anomeric carbon atom, knowledge that should stimulate the design of new transition-state analogues for use as chemical biology tools. | |||
Structural Snapshots for Mechanism-Based Inactivation of a Glycoside Hydrolase by Cyclopropyl Carbasugars.,Adamson C, Pengelly RJ, Shamsi Kazem Abadi S, Chakladar S, Draper J, Britton R, Gloster TM, Bennet AJ Angew Chem Int Ed Engl. 2016 Nov 21;55(48):14978-14982. doi:, 10.1002/anie.201607431. Epub 2016 Oct 26. PMID:27783466<ref>PMID:27783466</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
[[Category: | </div> | ||
<div class="pdbe-citations 5m1i" style="background-color:#fffaf0;"></div> | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Alpha-galactosidase]] | |||
[[Category: Gloster, T]] | |||
[[Category: Pengelly, R]] | [[Category: Pengelly, R]] | ||
[[Category: | [[Category: Glycoside hydrolase]] | ||
[[Category: Hydrolase]] | |||
