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==Structural basis for substrate targeting and catalysis by fungal polysaccharide monooxygenases (PMO-2)==
==Structural basis for substrate targeting and catalysis by fungal polysaccharide monooxygenases (PMO-2)==
<StructureSection load='4eir' size='340' side='right' caption='[[4eir]], [[Resolution|resolution]] 1.10&Aring;' scene=''>
<StructureSection load='4eir' size='340' side='right'caption='[[4eir]], [[Resolution|resolution]] 1.10&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[4eir]] 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=4EIR OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4EIR FirstGlance]. <br>
<table><tr><td colspan='2'>[[4eir]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Neurospora_crassa_OR74A Neurospora crassa OR74A]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4EIR OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4EIR 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=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=OXY:OXYGEN+MOLECULE'>OXY</scene></td></tr>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.1&#8491;</td></tr>
<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=HIC:4-METHYL-HISTIDINE'>HIC</scene></td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><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>, <scene name='pdbligand=OXY:OXYGEN+MOLECULE'>OXY</scene></td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4eis|4eis]]</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=4eir FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4eir OCA], [https://pdbe.org/4eir PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4eir RCSB], [https://www.ebi.ac.uk/pdbsum/4eir PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4eir ProSAT]</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=4eir FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4eir OCA], [http://pdbe.org/4eir PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4eir RCSB], [http://www.ebi.ac.uk/pdbsum/4eir PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4eir ProSAT]</span></td></tr>
</table>
</table>
<div style="background-color:#fffaf0;">
== Function ==
== Publication Abstract from PubMed ==
[https://www.uniprot.org/uniprot/Q1K8B6_NEUCR Q1K8B6_NEUCR]
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>
==See Also==
 
*[[Monooxygenase 3D structures|Monooxygenase 3D structures]]
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 4eir" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Neurospora crassa]]
[[Category: Large Structures]]
[[Category: Beeson, W T]]
[[Category: Neurospora crassa OR74A]]
[[Category: Cate, J H]]
[[Category: Beeson WT]]
[[Category: Li, X]]
[[Category: Cate JH]]
[[Category: Marletta, M A]]
[[Category: Li X]]
[[Category: Phillips, C M]]
[[Category: Marletta MA]]
[[Category: Beta-sandwich fold]]
[[Category: Phillips CM]]
[[Category: Biofuel]]
[[Category: Cbm33]]
[[Category: Cbp21]]
[[Category: Cellulase]]
[[Category: Copper monooxygenase]]
[[Category: Gh61]]
[[Category: Oxidoreductase]]
[[Category: Peroxide]]
[[Category: Pmo]]
[[Category: Polysaccharide monooxygenase]]
[[Category: Secreted]]
[[Category: Superoxide]]

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