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3vca
From Proteopedia
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| - | [[Image:3vca.jpg|left|200px]] | ||
| - | < | + | ==Quaternary Ammonium Oxidative Demethylation: X-ray Crystallographic, Resonance Raman and UV-visible Spectroscopic Analysis of a Rieske-type Demethylase== |
| - | + | <StructureSection load='3vca' size='340' side='right'caption='[[3vca]], [[Resolution|resolution]] 1.59Å' scene=''> | |
| - | + | == Structural highlights == | |
| - | + | <table><tr><td colspan='2'>[[3vca]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Ensifer_meliloti Ensifer meliloti]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3VCA OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3VCA FirstGlance]. <br> | |
| - | + | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=FE:FE+(III)+ION'>FE</scene>, <scene name='pdbligand=FES:FE2/S2+(INORGANIC)+CLUSTER'>FES</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=PRO:PROLINE'>PRO</scene></td></tr> | |
| - | -- | + | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[3vcp|3vcp]]</div></td></tr> |
| - | + | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">NP_435646, RA0400, SMa0751 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=266834 Ensifer meliloti])</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=3vca FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3vca OCA], [https://pdbe.org/3vca PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3vca RCSB], [https://www.ebi.ac.uk/pdbsum/3vca PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3vca ProSAT]</span></td></tr> | ||
| + | </table> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | Herein, the structure resulting from in situ turnover in a chemically challenging quaternary ammonium oxidative demethylation reaction was captured via crystallographic analysis and analyzed via single-crystal spectroscopy. Crystal structures were determined for the Rieske-type monooxygenase, stachydrine demethylase, in the unliganded state (at 1.6 A resolution) and in the product complex (at 2.2 A resolution). The ligand complex was obtained from enzyme aerobically cocrystallized with the substrate stachydrine (N,N-dimethylproline). The ligand electron density in the complex was interpreted as proline, generated within the active site at 100 K by the absorption of X-ray photon energy and two consecutive demethylation cycles. The oxidation state of the Rieske iron-sulfur cluster was characterized by UV-visible spectroscopy throughout X-ray data collection in conjunction with resonance Raman spectra collected before and after diffraction data. Shifts in the absorption band wavelength and intensity as a function of absorbed X-ray dose demonstrated that the Rieske center was reduced by solvated electrons generated by X-ray photons; the kinetics of the reduction process differed dramatically for the liganded complex compared to unliganded demethylase, which may correspond to the observed turnover in the crystal. | ||
| - | + | Quaternary Ammonium Oxidative Demethylation: X-ray Crystallographic, Resonance Raman, and UV-Visible Spectroscopic Analysis of a Rieske-Type Demethylase.,Daughtry KD, Xiao Y, Stoner-Ma D, Cho E, Orville AM, Liu P, Allen KN J Am Chem Soc. 2012 Jan 26. PMID:22224443<ref>PMID:22224443</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | + | </div> | |
| - | + | <div class="pdbe-citations 3vca" style="background-color:#fffaf0;"></div> | |
| - | + | == References == | |
| - | + | <references/> | |
| - | + | __TOC__ | |
| - | + | </StructureSection> | |
| - | == | + | [[Category: Ensifer meliloti]] |
| - | + | [[Category: Large Structures]] | |
| - | + | [[Category: Allen, K N]] | |
| - | == | + | [[Category: Cho, E]] |
| - | < | + | [[Category: Daughtry, K D]] |
| - | [[Category: | + | [[Category: Liu, P]] |
| - | [[Category: Allen, K N | + | [[Category: Orville, A M]] |
| - | [[Category: Cho, E | + | [[Category: Stoner-Ma, D]] |
| - | [[Category: Daughtry, K D | + | [[Category: Xiao, Y]] |
| - | [[Category: Liu, P | + | |
| - | [[Category: Orville, A M | + | |
| - | [[Category: Stoner-Ma, D | + | |
| - | [[Category: Xiao, Y | + | |
[[Category: Mononuclear non-heme iron]] | [[Category: Mononuclear non-heme iron]] | ||
[[Category: N-demethylase]] | [[Category: N-demethylase]] | ||
[[Category: Oxidoreductase]] | [[Category: Oxidoreductase]] | ||
[[Category: Rieske-type]] | [[Category: Rieske-type]] | ||
Current revision
Quaternary Ammonium Oxidative Demethylation: X-ray Crystallographic, Resonance Raman and UV-visible Spectroscopic Analysis of a Rieske-type Demethylase
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