1cel

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[[Image:1cel.png|left|200px]]
 
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{{STRUCTURE_1cel| PDB=1cel | SCENE= }}
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==THE THREE-DIMENSIONAL CRYSTAL STRUCTURE OF THE CATALYTIC CORE OF CELLOBIOHYDROLASE I FROM TRICHODERMA REESEI==
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<StructureSection load='1cel' size='340' side='right'caption='[[1cel]], [[Resolution|resolution]] 1.80&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1cel]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Trichoderma_reesei Trichoderma reesei]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1CEL OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1CEL FirstGlance]. <br>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.8&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=BGC:BETA-D-GLUCOSE'>BGC</scene>, <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=GLC:ALPHA-D-GLUCOSE'>GLC</scene>, <scene name='pdbligand=IBZ:2-IODOBENZYLTHIO+GROUP'>IBZ</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=PCA:PYROGLUTAMIC+ACID'>PCA</scene></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1cel FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1cel OCA], [https://pdbe.org/1cel PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1cel RCSB], [https://www.ebi.ac.uk/pdbsum/1cel PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1cel ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/GUX1_HYPJE GUX1_HYPJE] The biological conversion of cellulose to glucose generally requires three types of hydrolytic enzymes: (1) Endoglucanases which cut internal beta-1,4-glucosidic bonds; (2) Exocellobiohydrolases that cut the dissaccharide cellobiose from the non-reducing end of the cellulose polymer chain; (3) Beta-1,4-glucosidases which hydrolyze the cellobiose and other short cello-oligosaccharides to glucose.
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ce/1cel_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1cel ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Cellulose is the major polysaccharide of plants where it plays a predominantly structural role. A variety of highly specialized microorganisms have evolved to produce enzymes that either synergistically or in complexes can carry out the complete hydrolysis of cellulose. The structure of the major cellobiohydrolase, CBHI, of the potent cellulolytic fungus Trichoderma reesei has been determined and refined to 1.8 angstrom resolution. The molecule contains a 40 angstrom long active site tunnel that may account for many of the previously poorly understood macroscopic properties of the enzyme and its interaction with solid cellulose. The active site residues were identified by solving the structure of the enzyme complexed with an oligosaccharide, o-iodobenzyl-1-thio-beta-cellobioside. The three-dimensional structure is very similar to a family of bacterial beta-glucanases with the main-chain topology of the plant legume lectins.
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===THE THREE-DIMENSIONAL CRYSTAL STRUCTURE OF THE CATALYTIC CORE OF CELLOBIOHYDROLASE I FROM TRICHODERMA REESEI===
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The three-dimensional crystal structure of the catalytic core of cellobiohydrolase I from Trichoderma reesei.,Divne C, Stahlberg J, Reinikainen T, Ruohonen L, Pettersson G, Knowles JK, Teeri TT, Jones TA Science. 1994 Jul 22;265(5171):524-8. PMID:8036495<ref>PMID:8036495</ref>
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{{ABSTRACT_PUBMED_8036495}}
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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==About this Structure==
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<div class="pdbe-citations 1cel" style="background-color:#fffaf0;"></div>
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[[1cel]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Trichoderma_reesei Trichoderma reesei]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1CEL OCA].
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==See Also==
==See Also==
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*[[Cellobiohydrolase|Cellobiohydrolase]]
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*[[Cellobiohydrolase 3D structures|Cellobiohydrolase 3D structures]]
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== References ==
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==Reference==
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<references/>
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<ref group="xtra">PMID:008036495</ref><references group="xtra"/>
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__TOC__
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[[Category: Cellulose 1,4-beta-cellobiosidase]]
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</StructureSection>
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[[Category: Large Structures]]
[[Category: Trichoderma reesei]]
[[Category: Trichoderma reesei]]
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[[Category: Divne, C.]]
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[[Category: Divne C]]
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[[Category: Jones, T A.]]
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[[Category: Jones TA]]

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THE THREE-DIMENSIONAL CRYSTAL STRUCTURE OF THE CATALYTIC CORE OF CELLOBIOHYDROLASE I FROM TRICHODERMA REESEI

PDB ID 1cel

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