5uv0: Difference between revisions

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'''Unreleased structure'''


The entry 5uv0 is ON HOLD  until Paper Publication
==Crystal Structure of (+)-Limonene Synthase from Citrus sinensis==
<StructureSection load='5uv0' size='340' side='right' caption='[[5uv0]], [[Resolution|resolution]] 2.30&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[5uv0]] is a 1 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5UV0 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5UV0 FirstGlance]. <br>
</td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[5uv2|5uv2]], [[5uv1|5uv1]]</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=5uv0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5uv0 OCA], [http://pdbe.org/5uv0 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5uv0 RCSB], [http://www.ebi.ac.uk/pdbsum/5uv0 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5uv0 ProSAT]</span></td></tr>
</table>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Terpenes make up the largest and most diverse class of natural compounds and have important commercial and medical applications. Limonene is a cyclic monoterpene (C10) present in nature as two enantiomers, (+) and (-), which are produced by different enzymes. The mechanism of production of the (-)-enantiomer has been studied in great detail, but to understand how enantiomeric selectivity is achieved in this class of enzymes, it is important to develop a thorough biochemical description of enzymes that generate (+)-limonene, as well. Here we report the first cloning and biochemical characterization of a (+)-limonene synthase from navel orange (Citrus sinensis). The enzyme obeys classical Michaelis-Menten kinetics and produces exclusively the (+)-enantiomer. We have determined the crystal structure of the apoprotein in an "open" conformation at 2.3 A resolution. Comparison with the structure of (-)-limonene synthase (Mentha spicata), which is representative of a fully closed conformation (Protein Data Bank entry 2ONG ), reveals that the short H-alpha1 helix moves nearly 5 A inward upon substrate binding, and a conserved Tyr flips to point its hydroxyl group into the active site.


Authors:  
Functional and Structural Characterization of a (+)-Limonene Synthase from Citrus sinensis.,Morehouse BR, Kumar RP, Matos JO, Olsen SN, Entova S, Oprian DD Biochemistry. 2017 Mar 15. doi: 10.1021/acs.biochem.7b00143. PMID:28272875<ref>PMID:28272875</ref>


Description:  
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
[[Category: Unreleased Structures]]
</div>
<div class="pdbe-citations 5uv0" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Kumar, R Prem]]
[[Category: Oprian, D D]]
[[Category: Enantiomer]]
[[Category: Lyase]]
[[Category: Monoterpene]]
[[Category: Terpene synthase]]
[[Category: Terpene synthase fold]]
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