1esa

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[[Image:1esa.png|left|200px]]
 
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==DIRECT STRUCTURE OBSERVATION OF AN ACYL-ENZYME INTERMEDIATE IN THE HYDROLYSIS OF AN ESTER SUBSTRATE BY ELASTASE==
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The line below this paragraph, containing "STRUCTURE_1esa", creates the "Structure Box" on the page.
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<StructureSection load='1esa' size='340' side='right'caption='[[1esa]], [[Resolution|resolution]] 1.65&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'>[[1esa]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Sus_scrofa Sus scrofa]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ESA OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1ESA 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]] 1.65&#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=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
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{{STRUCTURE_1esa| PDB=1esa | 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=1esa FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1esa OCA], [https://pdbe.org/1esa PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1esa RCSB], [https://www.ebi.ac.uk/pdbsum/1esa PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1esa ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/CELA1_PIG CELA1_PIG] Acts upon elastin.
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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/es/1esa_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=1esa 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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The method of X-ray crystallographic cryoenzymology has been used to determine the crystal structure of a kinetically significant species on the reaction pathway of a crystalline enzyme. The structure of a specific acyl-enzyme intermediate in the elastase-catalyzed hydrolysis of the N-carbobenzoxy-L-alanine p-nitrophenyl ester has been determined and refined against X-ray diffraction data at 2.3-A resolution. The difference Fourier electron density map clearly shows electron density for the trapped acyl-enzyme. The acyl-enzyme was formed at -26 degrees C and was stabilized at -55 degrees C during data collection, taking advantage of the glass transition in protein dynamics that occurs at around -50 degrees C.
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===DIRECT STRUCTURE OBSERVATION OF AN ACYL-ENZYME INTERMEDIATE IN THE HYDROLYSIS OF AN ESTER SUBSTRATE BY ELASTASE===
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Direct structural observation of an acyl-enzyme intermediate in the hydrolysis of an ester substrate by elastase.,Ding X, Rasmussen BF, Petsko GA, Ringe D Biochemistry. 1994 Aug 9;33(31):9285-93. PMID:8049229<ref>PMID:8049229</ref>
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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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The line below this paragraph, {{ABSTRACT_PUBMED_8049229}}, adds the Publication Abstract to the page
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<div class="pdbe-citations 1esa" style="background-color:#fffaf0;"></div>
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(as it appears on PubMed at http://www.pubmed.gov), where 8049229 is the PubMed ID number.
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{{ABSTRACT_PUBMED_8049229}}
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==About this Structure==
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[[1esa]] is a 1 chain structure of [[Elastase]] with sequence from [http://en.wikipedia.org/wiki/Sus_scrofa Sus scrofa]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ESA OCA].
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==See Also==
==See Also==
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*[[Elastase]]
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*[[Elastase 3D structures|Elastase 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:8049229</ref><references group="xtra"/>
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__TOC__
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[[Category: Pancreatic elastase]]
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</StructureSection>
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[[Category: Large Structures]]
[[Category: Sus scrofa]]
[[Category: Sus scrofa]]
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[[Category: Ding, X.]]
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[[Category: Ding X]]
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[[Category: Petsko, G A.]]
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[[Category: Petsko GA]]
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[[Category: Rasmussen, B.]]
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[[Category: Rasmussen B]]
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[[Category: Ringe, D.]]
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[[Category: Ringe D]]

Current revision

DIRECT STRUCTURE OBSERVATION OF AN ACYL-ENZYME INTERMEDIATE IN THE HYDROLYSIS OF AN ESTER SUBSTRATE BY ELASTASE

PDB ID 1esa

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