View source for 2yet


==Thermoascus GH61 isozyme A==
<StructureSection load='2yet' size='340' side='right'caption='[[2yet]], [[Resolution|resolution]] 1.50&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[2yet]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Thermoascus_aurantiacus Thermoascus aurantiacus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2YET OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2YET 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]] 1.502&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ACE:ACETYL+GROUP'>ACE</scene>, <scene name='pdbligand=CU:COPPER+(II)+ION'>CU</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=HIC:4-METHYL-HISTIDINE'>HIC</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</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=2yet FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2yet OCA], [https://pdbe.org/2yet PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2yet RCSB], [https://www.ebi.ac.uk/pdbsum/2yet PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2yet ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/G3XAP7_THEAU G3XAP7_THEAU] Has endoglucanase activity on substrates containing beta-1,4 glycosidic bonds. Involved in the degradation of complex natural cellulosic substrates.[RuleBase:RU368122]
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The enzymatic degradation of recalcitrant plant biomass is one of the key industrial challenges of the 21st century. Accordingly, there is a continuing drive to discover new routes to promote polysaccharide degradation. Perhaps the most promising approach involves the application of "cellulase-enhancing factors," such as those from the glycoside hydrolase (CAZy) GH61 family. Here we show that GH61 enzymes are a unique family of copper-dependent oxidases. We demonstrate that copper is needed for GH61 maximal activity and that the formation of cellodextrin and oxidized cellodextrin products by GH61 is enhanced in the presence of small molecule redox-active cofactors such as ascorbate and gallate. By using electron paramagnetic resonance spectroscopy and single-crystal X-ray diffraction, the active site of GH61 is revealed to contain a type II copper and, uniquely, a methylated histidine in the copper's coordination sphere, thus providing an innovative paradigm in bioinorganic enzymatic catalysis.

Insights into the oxidative degradation of cellulose by a copper metalloenzyme that exploits biomass components.,Quinlan RJ, Sweeney MD, Lo Leggio L, Otten H, Poulsen JC, Johansen KS, Krogh KB, Jorgensen CI, Tovborg M, Anthonsen A, Tryfona T, Walter CP, Dupree P, Xu F, Davies GJ, Walton PH Proc Natl Acad Sci U S A. 2011 Sep 13;108(37):15079-84. Epub 2011 Aug 29. PMID:21876164<ref>PMID:21876164</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 2yet" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Thermoascus aurantiacus]]
[[Category: Anthonsen A]]
[[Category: Davies GJ]]
[[Category: Dupree P]]
[[Category: Joergensen CI]]
[[Category: Johansen KS]]
[[Category: Krogh KBRM]]
[[Category: Lo Leggio L]]
[[Category: Otten H]]
[[Category: Poulsen J-CN]]
[[Category: Quinlan RJ]]
[[Category: Sweeney MD]]
[[Category: Tovborg M]]
[[Category: Tryfona T]]
[[Category: Walter CP]]
[[Category: Walton PH]]
[[Category: Xu F]]