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1pq7

From Proteopedia

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[[Image:1pq7.jpg|left|200px]]
 
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==Trypsin at 0.8 A, pH5 / borax==
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The line below this paragraph, containing "STRUCTURE_1pq7", creates the "Structure Box" on the page.
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<StructureSection load='1pq7' size='340' side='right'caption='[[1pq7]], [[Resolution|resolution]] 0.80&Aring;' scene=''>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[1pq7]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Fusarium_oxysporum Fusarium oxysporum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1PQ7 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1PQ7 FirstGlance]. <br>
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or leave the SCENE parameter empty for the default display.
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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]] 0.8&#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=ARG:ARGININE'>ARG</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
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{{STRUCTURE_1pq7| PDB=1pq7 | SCENE= }}
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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=1pq7 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1pq7 OCA], [https://pdbe.org/1pq7 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1pq7 RCSB], [https://www.ebi.ac.uk/pdbsum/1pq7 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1pq7 ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/TRYP_FUSOX TRYP_FUSOX]
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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/pq/1pq7_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/main_output.php?pdb_ID=1pq7 ConSurf].
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<div style="clear:both"></div>
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'''Trypsin at 0.8 A, pH5 / borax'''
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==See Also==
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*[[Trypsin 3D structures|Trypsin 3D structures]]
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__TOC__
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==Overview==
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</StructureSection>
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A series of crystal structures of trypsin, containing either an autoproteolytic cleaved peptide fragment or a covalently bound inhibitor, were determined at atomic and ultra-high resolution and subjected to ab initio quantum chemical calculations and multipole refinement. Quantum chemical calculations reproduced the observed active site crystal structure with severe deviations from standard stereochemistry and indicated the protonation state of the catalytic residues. Multipole refinement directly revealed the charge distribution in the active site and proved the validity of the ab initio calculations. The combined results confirmed the catalytic function of the active site residues and the two water molecules acting as the nucleophile and the proton donor. The crystal structures represent snapshots from the reaction pathway, close to a tetrahedral intermediate. The de-acylation of trypsin then occurs in true SN2 fashion.
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==About this Structure==
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1PQ7 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Fusarium_oxysporum Fusarium oxysporum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1PQ7 OCA].
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==Reference==
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Trypsin revisited: crystallography AT (SUB) atomic resolution and quantum chemistry revealing details of catalysis., Schmidt A, Jelsch C, Ostergaard P, Rypniewski W, Lamzin VS, J Biol Chem. 2003 Oct 31;278(44):43357-62. Epub 2003 Aug 22. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/12937176 12937176]
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[[Category: Fusarium oxysporum]]
[[Category: Fusarium oxysporum]]
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[[Category: Single protein]]
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[[Category: Large Structures]]
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[[Category: Trypsin]]
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[[Category: Jelsch C]]
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[[Category: Jelsch, C.]]
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[[Category: Lamzin VS]]
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[[Category: Lamzin, V S.]]
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[[Category: Rypniewski W]]
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[[Category: Rypniewski, W.]]
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[[Category: Schmidt A]]
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[[Category: Schmidt, A.]]
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[[Category: Catalysis]]
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[[Category: Trypsin]]
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[[Category: Ultra-high resolution]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 05:21:36 2008''
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Current revision

Trypsin at 0.8 A, pH5 / borax

PDB ID 1pq7

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