3zpx: Difference between revisions
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==USTILAGO MAYDIS LIPASE UM03410, SHORT FORM WITHOUT FLAP== | |||
<StructureSection load='3zpx' size='340' side='right' caption='[[3zpx]], [[Resolution|resolution]] 1.99Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[3zpx]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Corn_smut_fungus Corn smut fungus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3ZPX OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3ZPX FirstGlance]. <br> | |||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=PEG:DI(HYDROXYETHYL)ETHER'>PEG</scene>, <scene name='pdbligand=PG4:TETRAETHYLENE+GLYCOL'>PG4</scene></td></tr> | |||
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Triacylglycerol_lipase Triacylglycerol lipase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.1.1.3 3.1.1.3] </span></td></tr> | |||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3zpx FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3zpx OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3zpx RCSB], [http://www.ebi.ac.uk/pdbsum/3zpx PDBsum]</span></td></tr> | |||
</table> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
The Ustilago maydis lipase UM03410 belongs to the mostly unexplored Candida antarctica lipase (CAL-A) subfamily. The two lipases with [corrected] the highest identity are a lipase from Sporisorium reilianum and the prototypic CAL-A. In contrast to the other CAL-A-type lipases, this hypothetical U. maydis lipase is annotated to possess a prolonged N-terminus of unknown function. Here, we show for the first time the recombinant expression of two versions of lipase UM03410: the full-length form (lipUMf) and an Nterminally truncated form (lipUMs). For comparison to the prototype, the expression of recombinant CAL-A in E. coli was investigated. Although both forms of lipase UM03410 could be expressed functionally in E. coli, the N-terminally truncated form (lipUMs) demonstrated significantly higher activities towards p-nitrophenyl esters. The functional expression of the N-terminally truncated lipase was further optimized by the appropriate choice of the E. coli strain, lowering the cultivation temperature to 20 degrees C and enrichment of the cultivation medium with glucose. Primary characteristics of the recombinant lipase are its pH optimum in the range of 6.5-7.0 and its temperature optimum at 55 degrees C. As is typical for lipases, lipUM03410 shows preference for long chain fatty acid esters with myristic acid ester (C14:0 ester) being the most preferred one.More importantly, lipUMs exhibits an inherent preference for C18:1Delta9 trans and C18:1Delta11 trans-fatty acid esters similar to CAL-A. Therefore, the short form of this U. maydis lipase is the only other currently known lipase with a distinct trans-fatty acid selectivity. | |||
The short form of the recombinant CAL-A-type lipase UM03410 from the smut fungus Ustilago maydis exhibits an inherent trans-fatty acid selectivity.,Brundiek H, Sass S, Evitt A, Kourist R, Bornscheuer UT Appl Microbiol Biotechnol. 2012 Apr;94(1):141-50. doi: 10.1007/s00253-012-3903-9., Epub 2012 Feb 1. PMID:22294433<ref>PMID:22294433</ref> | |||
== | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
</div> | |||
==See Also== | |||
*[[Lipase|Lipase]] | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Corn smut fungus]] | |||
[[Category: Triacylglycerol lipase]] | [[Category: Triacylglycerol lipase]] | ||
[[Category: Hinrichs, W | [[Category: Hinrichs, W]] | ||
[[Category: Palm, G J | [[Category: Palm, G J]] | ||
[[Category: Alpha beta hydrolase]] | [[Category: Alpha beta hydrolase]] | ||
[[Category: Hydrolase]] | [[Category: Hydrolase]] | ||
Revision as of 09:17, 4 January 2015
USTILAGO MAYDIS LIPASE UM03410, SHORT FORM WITHOUT FLAP
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