5jab
From Proteopedia
(Difference between revisions)
(New page: '''Unreleased structure''' The entry 5jab is ON HOLD until Paper Publication Authors: Ahmed, F.H., Carr, P.D., Jackson, C.J. Description: Category: Unreleased Structures [[Categor...) |
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| - | '''Unreleased structure''' | ||
| - | + | ==Structure of the biliverdin reductase Rv2074 from Mycobacterium tuberculosis in complex with F420== | |
| + | <StructureSection load='5jab' size='340' side='right'caption='[[5jab]], [[Resolution|resolution]] 1.65Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[5jab]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Mycobacterium_tuberculosis_H37Rv Mycobacterium tuberculosis H37Rv]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5JAB OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5JAB FirstGlance]. <br> | ||
| + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.65Å</td></tr> | ||
| + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=6J4:COENZYME+F420-3'>6J4</scene>, <scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene></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=5jab FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5jab OCA], [https://pdbe.org/5jab PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5jab RCSB], [https://www.ebi.ac.uk/pdbsum/5jab PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5jab ProSAT]</span></td></tr> | ||
| + | </table> | ||
| + | == Function == | ||
| + | [https://www.uniprot.org/uniprot/FBVR_MYCTU FBVR_MYCTU] Catalyzes the F420H(2)-dependent reduction of biliverdin-IXalpha at C10 position, leading to bilirubin-IXalpha, a potent antioxidant. As biliverdin-IXalpha is produced in high amounts in macrophages infected with M.tuberculosis, its reduction by Rv2074 may play a role in protecting mycobacteria against oxidative stress, aiding the persistence of M.tuberculosis infection.<ref>PMID:27364382</ref> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | Bilirubin is a potent antioxidant that is produced from the reduction of the heme degradation product biliverdin. In mammalian cells and Cyanobacteria, NADH/NADPH-dependent biliverdin reductases (BVRs) of the Rossman-fold have been shown to catalyze this reaction. Here, we describe the characterization of Rv2074 from Mycobacterium tuberculosis, which belongs to a structurally and mechanistically distinct family of F420 H2 -dependent BVRs (F-BVRs) that are exclusively found in Actinobacteria. We have solved the crystal structure of Rv2074 bound to its cofactor, F420 , and used this alongside molecular dynamics simulations, site-directed mutagenesis and NMR spectroscopy to elucidate its catalytic mechanism. The production of bilirubin by Rv2074 could exploit the anti-oxidative properties of bilirubin and contribute to the range of immuno-evasive mechanisms that have evolved in M. tuberculosis to allow persistent infection. This article is protected by copyright. All rights reserved. | ||
| - | + | Rv2074 is a novel F420 H2 -dependent biliverdin reductase in Mycobacterium tuberculosis.,Ahmed FH, Mohamed AE, Carr PD, Lee BM, Condic-Jurkic K, O'Mara ML, Jackson CJ Protein Sci. 2016 Jul 1. doi: 10.1002/pro.2975. PMID:27364382<ref>PMID:27364382</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | [[Category: | + | </div> |
| - | [[Category: | + | <div class="pdbe-citations 5jab" style="background-color:#fffaf0;"></div> |
| - | [[Category: | + | == References == |
| - | [[Category: Carr | + | <references/> |
| + | __TOC__ | ||
| + | </StructureSection> | ||
| + | [[Category: Large Structures]] | ||
| + | [[Category: Mycobacterium tuberculosis H37Rv]] | ||
| + | [[Category: Ahmed FH]] | ||
| + | [[Category: Carr PD]] | ||
| + | [[Category: Jackson CJ]] | ||
Current revision
Structure of the biliverdin reductase Rv2074 from Mycobacterium tuberculosis in complex with F420
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