View source for 4c89


==Crystal structure of carboxylesterase LpEst1 from Lactobacillus plantarum: high resolution model==
<StructureSection load='4c89' size='340' side='right'caption='[[4c89]], [[Resolution|resolution]] 2.05&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[4c89]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Lactiplantibacillus_plantarum_WCFS1 Lactiplantibacillus plantarum WCFS1]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4C89 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4C89 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]] 2.05&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=MLI:MALONATE+ION'>MLI</scene>, <scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</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=4c89 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4c89 OCA], [https://pdbe.org/4c89 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4c89 RCSB], [https://www.ebi.ac.uk/pdbsum/4c89 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4c89 ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/F9UMG7_LACPL F9UMG7_LACPL] 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The genome of the lactic acid bacterium Lactobacillus plantarum WCFS1 reveals the presence of a rich repertoire of esterases and lipases highlighting their important role in cellular metabolism. Among them is the carboxylesterase LpEst1 a bacterial enzyme related to the mammalian hormone-sensitive lipase, which is known to play a central role in energy homeostasis. In this study, the crystal structure of LpEst1 has been determined at 2.05 A resolution; it exhibits an alphabeta-hydrolase fold, consisting of a central beta-sheet surrounded by alpha-helices, endowed with novel topological features. The structure reveals a dimeric assembly not comparable with any other enzyme from the bacterial hormone-sensitive lipase family, probably echoing the specific structural features of the participating subunits. Biophysical studies including analytical gel filtration and ultracentrifugation support the dimeric nature of LpEst1. Structural and mutational analyses of the substrate-binding pocket and active site together with biochemical studies provided insights for understanding the substrate profile of LpEst1 and suggested for the first time the conserved Asp173, which is adjacent to the nucleophile, as a key element in the stabilization of the loop where the oxyanion hole resides.

Esterase LpEst1 from Lactobacillus plantarum: A Novel and Atypical Member of the alphabeta Hydrolase Superfamily of Enzymes.,Alvarez Y, Esteban-Torres M, Cortes-Cabrera A, Gago F, Acebron I, Benavente R, Mardo K, de Las Rivas B, Munoz R, Mancheno JM PLoS One. 2014 Mar 24;9(3):e92257. doi: 10.1371/journal.pone.0092257. eCollection, 2014. PMID:24663330<ref>PMID:24663330</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 4c89" style="background-color:#fffaf0;"></div>

==See Also==
*[[Carboxylesterase 3D structures|Carboxylesterase 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Lactiplantibacillus plantarum WCFS1]]
[[Category: Large Structures]]
[[Category: Acebron I]]
[[Category: Alvarez Y]]
[[Category: Benavente R]]
[[Category: Cortes-Cabrera A]]
[[Category: Esteban-Torres M]]
[[Category: Gago F]]
[[Category: Mancheno JM]]
[[Category: Mardo K]]
[[Category: Munoz R]]
[[Category: De-las-Rivas B]]