View source for 1me3


==High Resolution Crystal Structure Analysis Of Cruzain non-covalently Bound To A Hydroxymethyl Ketone Inhibitor (II)==
<StructureSection load='1me3' size='340' side='right'caption='[[1me3]], [[Resolution|resolution]] 1.20&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1me3]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Trypanosoma_cruzi Trypanosoma cruzi]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ME3 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1ME3 FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.2&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=P10:[1-(3-HYDROXY-2-OXO-1-PHENETHYL-PROPYLCARBAMOYL)2-PHENYL-ETHYL]-CARBAMIC+ACID+PYRIDIN-4-YLMETHYL+ESTER'>P10</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=1me3 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1me3 OCA], [https://pdbe.org/1me3 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1me3 RCSB], [https://www.ebi.ac.uk/pdbsum/1me3 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1me3 ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/CYSP_TRYCR CYSP_TRYCR] Hydrolyzes chromogenic peptides at the carboxyl Arg or Lys; requires at least one more amino acid, preferably Arg, Phe, Val or Leu, between the terminal Arg or Lys and the amino-blocking group.  The cysteine protease may play an important role in the development and differentiation of the parasites at several stages of their life cycle.
== 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/me/1me3_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=1me3 ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The crystal structures of two hydroxymethyl ketone inhibitors complexed to the cysteine protease cruzain have been determined at 1.1 and 1.2 A resolution, respectively. These high resolution crystal structures provide the first structures of non-covalent inhibitors bound to cruzain. A series of compounds were prepared and tested based upon the structures providing further insight into the key binding interactions.

Crystal structures of reversible ketone-Based inhibitors of the cysteine protease cruzain.,Huang L, Brinen LS, Ellman JA Bioorg Med Chem. 2003 Jan 2;11(1):21-9. PMID:12467703<ref>PMID:12467703</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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<div class="pdbe-citations 1me3" style="background-color:#fffaf0;"></div>

==See Also==
*[[Cruzain|Cruzain]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Trypanosoma cruzi]]
[[Category: Brinen LS]]
[[Category: Ellman JA]]
[[Category: Huang L]]