2cio

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[[Image:2cio.png|left|200px]]
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==THE HIGH RESOLUTION X-RAY STRUCTURE OF PAPAIN COMPLEXED WITH FRAGMENTS OF THE TRYPANOSOMA BRUCEI CYSTEINE PROTEASE INHIBITOR ICP.==
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<StructureSection load='2cio' size='340' side='right' caption='[[2cio]], [[Resolution|resolution]] 1.50&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[2cio]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Carica_papaya Carica papaya] and [http://en.wikipedia.org/wiki/Trypanosoma_brucei Trypanosoma brucei]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2CIO OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2CIO FirstGlance]. <br>
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</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=ACT:ACETATE+ION'>ACT</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene><br>
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<tr><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=OCS:CYSTEINESULFONIC+ACID'>OCS</scene></td></tr>
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<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1bp4|1bp4]], [[1bqi|1bqi]], [[1cvz|1cvz]], [[1eff|1eff]], [[1khp|1khp]], [[1khq|1khq]], [[1pad|1pad]], [[1pe6|1pe6]], [[1pip|1pip]], [[1pop|1pop]], [[1ppd|1ppd]], [[1ppn|1ppn]], [[1ppp|1ppp]], [[1stf|1stf]], [[2pad|2pad]], [[4pad|4pad]], [[5pad|5pad]], [[6pad|6pad]], [[9pap|9pap]]</td></tr>
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<tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Papain Papain], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.4.22.2 3.4.22.2] </span></td></tr>
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<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2cio FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2cio OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2cio RCSB], [http://www.ebi.ac.uk/pdbsum/2cio PDBsum]</span></td></tr>
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<table>
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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/ci/2cio_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.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/chain_selection.php?pdb_ID=2ata 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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Attempts to cocrystallize the cysteine protease papain derived from the latex of Carica papaya with an inhibitor of cysteine proteases (ICP) from Trypanosoma brucei were unsuccessful. However, crystals of papain that diffracted to higher resolution, 1.5 A, than other crystals of this archetypal cysteine protease were obtained, so the analysis was continued. Surprisingly, the substrate-binding cleft was occupied by two short peptide fragments which have been assigned as remnants of ICP. Comparisons reveal that these peptides bind in the active site in a manner similar to that of the human cysteine protease inhibitor stefin B when it is complexed to papain. The assignment of the fragment sequences is consistent with the specificity of the protease.
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{{STRUCTURE_2cio| PDB=2cio | SCENE= }}
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High-resolution complex of papain with remnants of a cysteine protease inhibitor derived from Trypanosoma brucei.,Alphey MS, Hunter WN Acta Crystallogr Sect F Struct Biol Cryst Commun. 2006 Jun 1;62(Pt, 6):504-8. Epub 2006 May 5. PMID:16754967<ref>PMID:16754967</ref>
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===THE HIGH RESOLUTION X-RAY STRUCTURE OF PAPAIN COMPLEXED WITH FRAGMENTS OF THE TRYPANOSOMA BRUCEI CYSTEINE PROTEASE INHIBITOR ICP.===
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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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{{ABSTRACT_PUBMED_16754967}}
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==About this Structure==
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[[2cio]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Carica_papaya Carica papaya] and [http://en.wikipedia.org/wiki/Trypanosoma_brucei Trypanosoma brucei]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2CIO OCA].
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==See Also==
==See Also==
*[[Papain|Papain]]
*[[Papain|Papain]]
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== References ==
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==Reference==
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<references/>
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<ref group="xtra">PMID:016754967</ref><references group="xtra"/>
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__TOC__
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</StructureSection>
[[Category: Carica papaya]]
[[Category: Carica papaya]]
[[Category: Papain]]
[[Category: Papain]]

Revision as of 02:53, 29 September 2014

THE HIGH RESOLUTION X-RAY STRUCTURE OF PAPAIN COMPLEXED WITH FRAGMENTS OF THE TRYPANOSOMA BRUCEI CYSTEINE PROTEASE INHIBITOR ICP.

2cio, resolution 1.50Å

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