1lpn: Difference between revisions
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==ANALOGS OF REACTION INTERMEDIATES IDENTIFY A UNIQUE SUBSTRATE BINDING SITE IN CANDIDA RUGOSA LIPASE== | |||
<StructureSection load='1lpn' size='340' side='right'caption='[[1lpn]], [[Resolution|resolution]] 2.18Å' scene=''> | |||
| | == Structural highlights == | ||
<table><tr><td colspan='2'>[[1lpn]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Diutina_rugosa Diutina rugosa]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1LPN OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1LPN 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]] 2.18Å</td></tr> | |||
<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=DSC:DODECANESULFONATE+ION'>DSC</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</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=1lpn FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1lpn OCA], [https://pdbe.org/1lpn PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1lpn RCSB], [https://www.ebi.ac.uk/pdbsum/1lpn PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1lpn ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/LIP1_DIURU LIP1_DIURU] | |||
== 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/lp/1lpn_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=1lpn ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
The structures of Candida rugosa lipase-inhibitor complexes demonstrate that the scissile fatty acyl chain is bound in a narrow, hydrophobic tunnel which is unique among lipases studied to date. Modeling of triglyceride binding suggests that the bound lipid must adopt a "tuning fork" conformation. The complexes, analogs of tetrahedral intermediates of the acylation and deacylation steps of the reaction pathway, localize the components of the oxyanion hole and define the stereochemistry of ester hydrolysis. Comparison with other lipases suggests that the positioning of the scissile fatty acyl chain and ester bond and the stereochemistry of hydrolysis are the same in all lipases which share the alpha/beta-hydrolase fold. | The structures of Candida rugosa lipase-inhibitor complexes demonstrate that the scissile fatty acyl chain is bound in a narrow, hydrophobic tunnel which is unique among lipases studied to date. Modeling of triglyceride binding suggests that the bound lipid must adopt a "tuning fork" conformation. The complexes, analogs of tetrahedral intermediates of the acylation and deacylation steps of the reaction pathway, localize the components of the oxyanion hole and define the stereochemistry of ester hydrolysis. Comparison with other lipases suggests that the positioning of the scissile fatty acyl chain and ester bond and the stereochemistry of hydrolysis are the same in all lipases which share the alpha/beta-hydrolase fold. | ||
Analogs of reaction intermediates identify a unique substrate binding site in Candida rugosa lipase.,Grochulski P, Bouthillier F, Kazlauskas RJ, Serreqi AN, Schrag JD, Ziomek E, Cygler M Biochemistry. 1994 Mar 29;33(12):3494-500. PMID:8142346<ref>PMID:8142346</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 1lpn" style="background-color:#fffaf0;"></div> | |||
==See Also== | |||
*[[Lipase 3D Structures|Lipase 3D Structures]] | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Diutina rugosa]] | |||
[[Category: Large Structures]] | |||
[[Category: Cygler MC]] | |||
[[Category: Grochulski PG]] | |||
Latest revision as of 06:58, 30 October 2024
ANALOGS OF REACTION INTERMEDIATES IDENTIFY A UNIQUE SUBSTRATE BINDING SITE IN CANDIDA RUGOSA LIPASE
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