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1elf

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[[Image:1elf.gif|left|200px]]
 
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==NATURE OF THE INACTIVATION OF ELASTASE BY N-PEPTIDYL-O-AROYL HYDROXYLAMINE AS A FUNCTION OF PH==
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The line below this paragraph, containing "STRUCTURE_1elf", creates the "Structure Box" on the page.
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<StructureSection load='1elf' size='340' side='right'caption='[[1elf]], [[Resolution|resolution]] 1.70&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'>[[1elf]] 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=1ELF OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1ELF 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]] 1.7&#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=BAF:(TERT-BUTYLOXYCARBONYL)-ALANYL-AMINO+ETHYL-FORMAMIDE'>BAF</scene>, <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
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{{STRUCTURE_1elf| PDB=1elf | 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=1elf FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1elf OCA], [https://pdbe.org/1elf PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1elf RCSB], [https://www.ebi.ac.uk/pdbsum/1elf PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1elf 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/el/1elf_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=1elf ConSurf].
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<div style="clear:both"></div>
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'''NATURE OF THE INACTIVATION OF ELASTASE BY N-PEPTIDYL-O-AROYL HYDROXYLAMINE AS A FUNCTION OF PH'''
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==See Also==
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*[[Elastase 3D structures|Elastase 3D structures]]
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__TOC__
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==Overview==
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</StructureSection>
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The mechanism of inactivation of porcine pancreatic elastase (PPE) by N-peptidyl-O-aroylhydroxylamine was studied by X-ray crystallography. The inactivator forms a stable complex with the enzyme by means of a covalent attachment to the active site Ser 203(195) O gamma. The nature of the complex is, however, different depending on the pH at which the inactivation reaction occurs. At pH 5, the complex formed is a hydroxylamine derivative of Ser 203(195) in which the O gamma of serine is the oxygen of the hydroxylamine derivative. At pH 7.5, the complex formed is a carbamate derivative at Ser 203(195) O gamma. In both types of complexes, the inactivator binds in the S' subsites of the enzyme instead of forming the usual antiparallel beta-sheet with the S subsites. The implication for the mechanism of inactivation at different pHs is discussed.
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[[Category: Large Structures]]
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==About this Structure==
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1ELF is a [[Single protein]] structure of 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=1ELF OCA].
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==Reference==
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Nature of the inactivation of elastase by N-peptidyl-O-aroyl hydroxylamine as a function of pH., Ding X, Rasmussen BF, Demuth HU, Ringe D, Steinmetz AC, Biochemistry. 1995 Jun 13;34(23):7749-56. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/7779821 7779821]
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[[Category: Pancreatic elastase]]
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[[Category: Single protein]]
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[[Category: Sus scrofa]]
[[Category: Sus scrofa]]
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[[Category: Demuth, H U.]]
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[[Category: Demuth H-U]]
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[[Category: Ding, X.]]
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[[Category: Ding X]]
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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]]
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[[Category: Steinmetz, A C.U.]]
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[[Category: Steinmetz ACU]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 15:14:42 2008''
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Current revision

NATURE OF THE INACTIVATION OF ELASTASE BY N-PEPTIDYL-O-AROYL HYDROXYLAMINE AS A FUNCTION OF PH

PDB ID 1elf

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