View source for 4eis


==Structural basis for substrate targeting and catalysis by fungal polysaccharide monooxygenases (PMO-3)==
<StructureSection load='4eis' size='340' side='right'caption='[[4eis]], [[Resolution|resolution]] 1.37&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[4eis]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Neurospora_crassa Neurospora crassa]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4EIS OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4EIS FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CU:COPPER+(II)+ION'>CU</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=PER:PEROXIDE+ION'>PER</scene></td></tr>
<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=DAH:3,4-DIHYDROXYPHENYLALANINE'>DAH</scene>, <scene name='pdbligand=HIC:4-METHYL-HISTIDINE'>HIC</scene></td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4eir|4eir]]</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=4eis FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4eis OCA], [http://pdbe.org/4eis PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4eis RCSB], [http://www.ebi.ac.uk/pdbsum/4eis PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4eis ProSAT]</span></td></tr>
</table>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The use of cellulases remains a major cost in the production of renewable fuels and chemicals from lignocellulosic biomass. Fungi secrete copper-dependent polysaccharide monooxygenases (PMOs) that oxidatively cleave crystalline cellulose and improve the effectiveness of cellulases. However, the means by which PMOs recognize and cleave their substrates in the plant cell wall remain unclear. Here, we present structures of Neurospora crassa PMO-2 and PMO-3 at 1.10 and 1.37 A resolution, respectively. In the structures, dioxygen species are found in the active sites, consistent with the proposed cleavage mechanism. Structural and sequence comparisons between PMOs also reveal that the enzyme substrate-binding surfaces contain highly varied aromatic amino acid and glycosylation positions. The structures reported here provide evidence for a wide range of PMO substrate recognition patterns in the plant cell wall, including binding modes that traverse multiple glucan chains.

Structural Basis for Substrate Targeting and Catalysis by Fungal Polysaccharide Monooxygenases.,Li X, Beeson WT 4th, Phillips CM, Marletta MA, Cate JH Structure. 2012 May 9. PMID:22578542<ref>PMID:22578542</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 4eis" style="background-color:#fffaf0;"></div>

==See Also==
*[[Monooxygenase|Monooxygenase]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Neurospora crassa]]
[[Category: Beeson, W T]]
[[Category: Cate, J H]]
[[Category: Li, X]]
[[Category: Marletta, M A]]
[[Category: Phillips, C M]]
[[Category: Beta-sandwich fold]]
[[Category: Biofuel]]
[[Category: Cbm33]]
[[Category: Cbp21]]
[[Category: Cellulase]]
[[Category: Copper monooxygenase]]
[[Category: Gh61]]
[[Category: Oxidoreductase]]
[[Category: Peroxide]]
[[Category: Pmo]]
[[Category: Secreted]]
[[Category: Superoxide]]