6wnd
From Proteopedia
(Difference between revisions)
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==Structure of the Rieske non-heme iron oxygenase GxtA with dideoxysaxitoxin bound== | ==Structure of the Rieske non-heme iron oxygenase GxtA with dideoxysaxitoxin bound== | ||
| - | <StructureSection load='6wnd' size='340' side='right'caption='[[6wnd]]' scene=''> | + | <StructureSection load='6wnd' size='340' side='right'caption='[[6wnd]], [[Resolution|resolution]] 2.18Å' scene=''> |
== Structural highlights == | == Structural highlights == | ||
| - | <table><tr><td colspan='2'>Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6WND OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=6WND FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[6wnd]] is a 3 chain structure with sequence from [http://en.wikipedia.org/wiki/Lyngbya_wollei Lyngbya wollei]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6WND OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=6WND FirstGlance]. <br> |
| - | </td></tr><tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=6wnd FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6wnd OCA], [http://pdbe.org/6wnd PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6wnd RCSB], [http://www.ebi.ac.uk/pdbsum/6wnd PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6wnd ProSAT]</span></td></tr> | + | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <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=U5A:[(2Z,3aS,4R,6Z,10aR)-2,6-diiminooctahydro-1H,8H-pyrrolo[1,2-c]purin-4-yl]methyl+carbamate'>U5A</scene></td></tr> |
| + | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[6wn3|6wn3]]</td></tr> | ||
| + | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">sxtDIOX ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=467598 Lyngbya wollei])</td></tr> | ||
| + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=6wnd FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6wnd OCA], [http://pdbe.org/6wnd PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6wnd RCSB], [http://www.ebi.ac.uk/pdbsum/6wnd PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6wnd ProSAT]</span></td></tr> | ||
</table> | </table> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | Biocatalysts that perform C-H hydroxylation exhibit exceptional substrate specificity and site-selectivity, often through the use of high valent oxidants to activate these inert bonds. Rieske oxygenases are examples of enzymes with the ability to perform precise mono- or dioxygenation reactions on a variety of substrates. Understanding the structural features of Rieske oxygenases responsible for control over selectivity is essential to enable the development of this class of enzymes for biocatalytic applications. Decades of research has illuminated the critical features common to Rieske oxygenases, however, structural information for enzymes that functionalize diverse scaffolds is limited. Here, we report the structures of two Rieske monooxygenases involved in the biosynthesis of paralytic shellfish toxins (PSTs), SxtT and GxtA, adding to the short list of structurally characterized Rieske oxygenases. Based on these structures, substrate-bound structures, and mutagenesis experiments, we implicate specific residues in substrate positioning and the divergent reaction selectivity observed in these two enzymes. | ||
| + | |||
| + | Structural basis for divergent C-H hydroxylation selectivity in two Rieske oxygenases.,Lukowski AL, Liu J, Bridwell-Rabb J, Narayan ARH Nat Commun. 2020 Jun 12;11(1):2991. doi: 10.1038/s41467-020-16729-0. PMID:32532989<ref>PMID:32532989</ref> | ||
| + | |||
| + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
| + | </div> | ||
| + | <div class="pdbe-citations 6wnd" style="background-color:#fffaf0;"></div> | ||
| + | == References == | ||
| + | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
[[Category: Large Structures]] | [[Category: Large Structures]] | ||
| - | [[Category: Bridwell-Rabb J]] | + | [[Category: Lyngbya wollei]] |
| - | [[Category: Liu J]] | + | [[Category: Bridwell-Rabb, J]] |
| + | [[Category: Liu, J]] | ||
| + | [[Category: Biosynthetic protein]] | ||
| + | [[Category: Metalloprotein]] | ||
| + | [[Category: Natural product]] | ||
| + | [[Category: Rieske oxygenase]] | ||
| + | [[Category: Saxitoxin]] | ||
Revision as of 07:13, 25 June 2020
Structure of the Rieske non-heme iron oxygenase GxtA with dideoxysaxitoxin bound
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