3wh8: Difference between revisions
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<StructureSection load='3wh8' size='340' side='right'caption='[[3wh8]], [[Resolution|resolution]] 1.90Å' scene=''> | <StructureSection load='3wh8' size='340' side='right'caption='[[3wh8]], [[Resolution|resolution]] 1.90Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[3wh8]] is a 1 chain structure | <table><tr><td colspan='2'>[[3wh8]] is a 1 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3WH8 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3WH8 FirstGlance]. <br> | ||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=IFM:5-HYDROXYMETHYL-3,4-DIHYDROXYPIPERIDINE'>IFM</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene>, <scene name='pdbligand=NHE:2-[N-CYCLOHEXYLAMINO]ETHANE+SULFONIC+ACID'>NHE</scene></td></tr> | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=IFM:5-HYDROXYMETHYL-3,4-DIHYDROXYPIPERIDINE'>IFM</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene>, <scene name='pdbligand=NHE:2-[N-CYCLOHEXYLAMINO]ETHANE+SULFONIC+ACID'>NHE</scene></td></tr> | ||
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[3wh5|3wh5]], [[3wh6|3wh6]], [[3wh7|3wh7]]</div></td></tr> | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[3wh5|3wh5]], [[3wh6|3wh6]], [[3wh7|3wh7]]</div></td></tr> | ||
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[[Category: Beta-glucosidase]] | [[Category: Beta-glucosidase]] | ||
[[Category: Large Structures]] | [[Category: Large Structures]] | ||
[[Category: Fushinobu, S]] | [[Category: Fushinobu, S]] | ||
[[Category: Jo, T]] | [[Category: Jo, T]] | ||
Revision as of 07:57, 25 August 2022
Crystal structure of GH1 beta-glucosidase Td2F2 isofagomine complexCrystal structure of GH1 beta-glucosidase Td2F2 isofagomine complex
Structural highlights
Publication Abstract from PubMedbeta-Glucosidase Td2F2 isolated from a compost metagenome has high glucose tolerance and transglycosylation activity. In this study, we determined the high-resolution crystal structure of Td2F2. It has a unique structure at the -1 subsite that is important for substrate specificity but not for glucose tolerance. To elucidate the mechanism(s) of glucose tolerance, we isolated a glucose-sensitive Td2F2 mutant using random mutagenesis. In this mutant, Asn223 residue located between subsites +1 and +2 was mutated. The Asn223 mutation resulted in reduced glucose tolerance and transglycosylation activity, and drastically changed substrate specificity. These results indicate that the structure between subsites +1 and +2 is critical for the glucose tolerance and substrate specificity of Td2F2. Our findings shed light on the glucose tolerance and transglycosylation activity mechanisms of glycoside hydrolase family 1 beta-glucosidases. This article is protected by copyright. All rights reserved. Crystal structure and identification of a key amino acid for glucose tolerance, substrate specificity and transglycosylation activity of metagenomic beta-glucosidase Td2F2.,Matsuzawa T, Jo T, Uchiyama T, Manninen JA, Arakawa T, Miyazaki K, Fushinobu S, Yaoi K FEBS J. 2016 Apr 19. doi: 10.1111/febs.13743. PMID:27092463[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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