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[[Image:1eau.jpg|left|200px]]


{{Structure
==NONPEPTIDIC INHIBITORS OF HUMAN LEUKOCYTE ELASTASE. 6. DESIGN OF A POTENT, INTRATRACHEALLY ACTIVE, PYRIDONE-BASED TRIFLUOROMETHYL KETONE==
|PDB= 1eau |SIZE=350|CAPTION= <scene name='initialview01'>1eau</scene>, resolution 2.0&Aring;
<StructureSection load='1eau' size='340' side='right'caption='[[1eau]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
|SITE=  
== Structural highlights ==
|LIGAND= <scene name='pdbligand=NA:SODIUM+ION'>NA</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene> and <scene name='pdbligand=BDK:2-[5-AMINO-6-OXO-2-(2-THIENYL)-1,6-DIHYDROPYRIMIDIN-1-YL)-N-[3,3-DIFLUORO -1-ISOPROPYL-2-OXO-3-(N-(2-MORPHOLINO ETHYL)CARBAMOYL]PROPYL]ACETAMIDE'>BDK</scene>
<table><tr><td colspan='2'>[[1eau]] 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=1EAU OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1EAU FirstGlance]. <br>
|ACTIVITY= [http://en.wikipedia.org/wiki/Pancreatic_elastase Pancreatic elastase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.4.21.36 3.4.21.36]  
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2&#8491;</td></tr>
|GENE=  
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=BDK:2-[5-AMINO-6-OXO-2-(2-THIENYL)-1,6-DIHYDROPYRIMIDIN-1-YL)-N-[3,3-DIFLUORO+-1-ISOPROPYL-2-OXO-3-(N-(2-MORPHOLINO+ETHYL)CARBAMOYL]PROPYL]ACETAMIDE'>BDK</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
}}
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1eau FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1eau OCA], [https://pdbe.org/1eau PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1eau RCSB], [https://www.ebi.ac.uk/pdbsum/1eau PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1eau ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/CELA1_PIG CELA1_PIG] Acts upon elastin.
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
  <jmolCheckbox>
    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ea/1eau_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</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=1eau ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Further modification of the 3-amino substituent in a trifluoromethyl ketone-based series of 3-amino-6-phenylpyridin-2-ones that had been optimized for oral activity led to analogs that were potent intratracheal inhibitors in a model of HLE-induced lung damage in the hamster. The best 3-amino substituent for intratracheal activity is [4-[N-[(4-chlorophenyl)sulfonyl]-carbamoyl]phenyl]sulfonyl. At a 30 min prechallenge interval, compound 9, which incorporates this substituent, had an ED50 of approximately 2 nmol/animal and, qualitatively, afforded a very similar dose-response relationship to that found with a peptidic trifluoromethyl ketone inhibitor, ICI 200,355.


'''NONPEPTIDIC INHIBITORS OF HUMAN LEUKOCYTE ELASTASE. 6. DESIGN OF A POTENT, INTRATRACHEALLY ACTIVE, PYRIDONE-BASED TRIFLUOROMETHYL KETONE'''
Nonpeptidic inhibitors of human leukocyte elastase. 6. Design of a potent, intratracheally active, pyridone-based trifluoromethyl ketone.,Bernstein PR, Gomes BC, Kosmider BJ, Vacek EP, Williams JC J Med Chem. 1995 Jan 6;38(1):212-5. PMID:7837235<ref>PMID:7837235</ref>


From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 1eau" style="background-color:#fffaf0;"></div>


==Overview==
==See Also==
Further modification of the 3-amino substituent in a trifluoromethyl ketone-based series of 3-amino-6-phenylpyridin-2-ones that had been optimized for oral activity led to analogs that were potent intratracheal inhibitors in a model of HLE-induced lung damage in the hamster. The best 3-amino substituent for intratracheal activity is [4-[N-[(4-chlorophenyl)sulfonyl]-carbamoyl]phenyl]sulfonyl. At a 30 min prechallenge interval, compound 9, which incorporates this substituent, had an ED50 of approximately 2 nmol/animal and, qualitatively, afforded a very similar dose-response relationship to that found with a peptidic trifluoromethyl ketone inhibitor, ICI 200,355.
*[[Elastase 3D structures|Elastase 3D structures]]
 
== References ==
==About this Structure==
<references/>
1EAU 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=1EAU OCA].
__TOC__
 
</StructureSection>
==Reference==
[[Category: Large Structures]]
Nonpeptidic inhibitors of human leukocyte elastase. 6. Design of a potent, intratracheally active, pyridone-based trifluoromethyl ketone., Bernstein PR, Gomes BC, Kosmider BJ, Vacek EP, Williams JC, J Med Chem. 1995 Jan 6;38(1):212-5. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/7837235 7837235]
[[Category: Pancreatic elastase]]
[[Category: Single protein]]
[[Category: Sus scrofa]]
[[Category: Sus scrofa]]
[[Category: Ceccarelli, C.]]
[[Category: Ceccarelli C]]
[[Category: BDK]]
[[Category: NA]]
[[Category: SO4]]
[[Category: hydrolase (serine protease)]]
 
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