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5lv9

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'''Unreleased structure'''
 
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The entry 5lv9 is ON HOLD
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==Crystal structure of thermophilic tryptophan halogenase (Th-Hal) enzyme from Streptomycin violaceusniger.==
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<StructureSection load='5lv9' size='340' side='right' caption='[[5lv9]], [[Resolution|resolution]] 2.33&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[5lv9]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5LV9 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5LV9 FirstGlance]. <br>
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</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=5lv9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5lv9 OCA], [http://pdbe.org/5lv9 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5lv9 RCSB], [http://www.ebi.ac.uk/pdbsum/5lv9 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5lv9 ProSAT]</span></td></tr>
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</table>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Flavin-dependent halogenase (Fl-Hal) enzymes have been shown to halogenate a range of synthetic as well as natural aromatic compounds. The exquisite regioselectively of Fl-Hal enzymes can provide halogenated building blocks which are inaccessible using standard halogenation chemistries. Consequently, Fl-Hal are potentially useful biocatalysts for the chemoenzymatic synthesis of pharmaceuticals and other valuable products, which are derived from haloaromatic precursors. However, the application of Fl-Hal enzymes, in vitro, has been hampered by their poor catalytic activity and lack of stability. To overcome these issues, we identified a thermophilic tryptophan halogenase (Th-Hal), which has significantly improved catalytic activity and stability, compared with other Fl-Hal characterised to date. When used in combination with a thermostable flavin reductase, Th-Hal can efficiently halogenate a number of aromatic substrates. X-ray crystal structures of Th-Hal, and the reductase partner (Th-Fre), provide insights into the factors that contribute to enzyme stability, which could guide the discovery and engineering of more robust and productive halogenase biocatalysts.
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Authors: Dunstan, M.S., Menon, B.
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Structure and biocatalytic scope of thermophilic flavin-dependent halogenase and flavin reductase enzymes.,Menon BR, Latham J, Dunstan MS, Brandenburger E, Klemstein U, Leys D, Karthikeyan C, Greaney MF, Shepherd SA, Micklefield J Org Biomol Chem. 2016 Oct 4;14(39):9354-9361. PMID:27714222<ref>PMID:27714222</ref>
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Description: Crystal structure of thermophilic tryptophan halogenase (Th-Hal) enzyme from Streptomycin violaceusniger.
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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[[Category: Unreleased Structures]]
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</div>
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[[Category: Dunstan, M.S]]
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<div class="pdbe-citations 5lv9" style="background-color:#fffaf0;"></div>
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== References ==
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<references/>
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__TOC__
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</StructureSection>
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[[Category: Dunstan, M S]]
[[Category: Menon, B]]
[[Category: Menon, B]]
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[[Category: Enzyme]]
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[[Category: Flavin reductase]]
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[[Category: Hydrolase]]
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[[Category: Thermophilic]]

Revision as of 17:20, 19 October 2016

Crystal structure of thermophilic tryptophan halogenase (Th-Hal) enzyme from Streptomycin violaceusniger.

5lv9, resolution 2.33Å

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