1o6i: Difference between revisions
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New page: left|200px<br /> <applet load="1o6i" size="450" color="white" frame="true" align="right" spinBox="true" caption="1o6i, resolution 1.70Å" /> '''CHITINASE B FROM SE... |
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== | ==Chitinase B from Serratia marcescens complexed with the catalytic intermediate mimic cyclic dipeptide CI4.== | ||
Family 18 chitinases are attractive targets for the development of new | <StructureSection load='1o6i' size='340' side='right'caption='[[1o6i]], [[Resolution|resolution]] 1.70Å' scene=''> | ||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[1o6i]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Serratia_marcescens Serratia marcescens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1O6I OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1O6I 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]] 1.7Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=0HZ:AMINO({3-[(3S,8AS)-1,4-DIOXOOCTAHYDROPYRROLO[1,2-A]PYRAZIN-3-YL]PROPYL}AMINO)METHANIMINIUM'>0HZ</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</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=1o6i FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1o6i OCA], [https://pdbe.org/1o6i PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1o6i RCSB], [https://www.ebi.ac.uk/pdbsum/1o6i PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1o6i ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/CHIB_SERMA CHIB_SERMA] | |||
== 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/o6/1o6i_consurf.spt"</scriptWhenChecked> | |||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.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=1o6i ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Family 18 chitinases are attractive targets for the development of new inhibitors with chemotherapeutic potential against fungi, insects and protozoan/nematodal parasites. Although several inhibitors have been identified, these are based on complex chemistry, which hampers iterative structure-based optimization. Here we report the details of chitinase inhibition by the natural product peptide CI-4 [ cyclo -(L-Arg-D-Pro)], which possesses activity against the human pathogenic fungus Candida albicans, and describe a 1.7 A (0.17 nm) crystal structure of CI-4 in complex with the enzyme. The structure reveals that the cyclic dipeptide inhibits chitinases by structurally mimicking a reaction intermediate, and could, on the basis of its accessible chemistry, be a candidate for further optimization. | |||
The cyclic dipeptide CI-4 [cyclo-(l-Arg-d-Pro)] inhibits family 18 chitinases by structural mimicry of a reaction intermediate.,Houston DR, Eggleston I, Synstad B, Eijsink VG, van Aalten DM Biochem J. 2002 Nov 15;368(Pt 1):23-7. PMID:12323074<ref>PMID:12323074</ref> | |||
== | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
</div> | |||
<div class="pdbe-citations 1o6i" style="background-color:#fffaf0;"></div> | |||
==See Also== | |||
*[[Chitinase 3D structures|Chitinase 3D structures]] | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Large Structures]] | |||
[[Category: Serratia marcescens]] | [[Category: Serratia marcescens]] | ||
[[Category: Eggleston I]] | |||
[[Category: Eijsink VGH]] | |||
[[Category: Eggleston | [[Category: Houston DR]] | ||
[[Category: Eijsink | [[Category: Synstad B]] | ||
[[Category: Houston | [[Category: Van Aalten DMF]] | ||
[[Category: Synstad | |||
[[Category: | |||
Latest revision as of 12:29, 13 December 2023
Chitinase B from Serratia marcescens complexed with the catalytic intermediate mimic cyclic dipeptide CI4.
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