5ugi
From Proteopedia
(Difference between revisions)
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| - | '''Unreleased structure''' | ||
| - | + | ==Crystal Structure of Ketosteroid Isomerase D38GF54A mutant from Pseudomonas Testosteroni (tKSI) bound to Equilenin== | |
| + | <StructureSection load='5ugi' size='340' side='right' caption='[[5ugi]], [[Resolution|resolution]] 1.80Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[5ugi]] is a 1 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5UGI OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5UGI FirstGlance]. <br> | ||
| + | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=EQU:EQUILENIN'>EQU</scene></td></tr> | ||
| + | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Steroid_Delta-isomerase Steroid Delta-isomerase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=5.3.3.1 5.3.3.1] </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=5ugi FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5ugi OCA], [http://pdbe.org/5ugi PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5ugi RCSB], [http://www.ebi.ac.uk/pdbsum/5ugi PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5ugi ProSAT]</span></td></tr> | ||
| + | </table> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | Control of enzyme activity is fundamental to biology and represents a long-term goal in bioengineering and precision therapeutics. While several powerful molecular strategies have been developed, limitations remain in their generalizability and dynamic range. We demonstrate a control mechanism via separate small molecules that turn on the enzyme (activator) and turn off the activation (blocker). We show that a pocket created near the active site base of the enzyme ketosteriod isomerase (KSI) allows efficient and saturable base rescue when the enzyme's natural general base is removed. Binding a small molecule with similar properties but lacking general-base capability in this pocket shuts off rescue. The ability of small molecules to directly participate in and directly block catalysis may afford a broad controllable dynamic range. This approach may be amenable to numerous enzymes and to engineering and screening approaches to identify activators and blockers with strong, specific binding for engineering and therapeutic applications. | ||
| - | + | An Activator-Blocker Pair Provides a Controllable On-Off Switch for a Ketosteroid Isomerase Active Site Mutant.,Lamba V, Yabukarski F, Herschlag D J Am Chem Soc. 2017 Aug 16;139(32):11089-11095. doi: 10.1021/jacs.7b03547. Epub, 2017 Aug 2. PMID:28719738<ref>PMID:28719738</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | [[Category: | + | </div> |
| + | <div class="pdbe-citations 5ugi" style="background-color:#fffaf0;"></div> | ||
| + | == References == | ||
| + | <references/> | ||
| + | __TOC__ | ||
| + | </StructureSection> | ||
| + | [[Category: Steroid Delta-isomerase]] | ||
| + | [[Category: Herschlag, D]] | ||
[[Category: Lamba, V]] | [[Category: Lamba, V]] | ||
[[Category: Yabukarski, F]] | [[Category: Yabukarski, F]] | ||
| - | [[Category: | + | [[Category: Enzyme]] |
| + | [[Category: Isomerase]] | ||
Revision as of 07:31, 15 November 2017
Crystal Structure of Ketosteroid Isomerase D38GF54A mutant from Pseudomonas Testosteroni (tKSI) bound to Equilenin
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