4c51
From Proteopedia
(Difference between revisions)
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| - | + | ==Crystal Structure of the Catalase-Peroxidase (KatG) R418L mutant from Mycobacterium Tuberculosis== | |
| - | + | <StructureSection load='4c51' size='340' side='right' caption='[[4c51]], [[Resolution|resolution]] 3.10Å' scene=''> | |
| - | + | == Structural highlights == | |
| - | + | <table><tr><td colspan='2'>[[4c51]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Mycobacterium_sp._h37rv Mycobacterium sp. h37rv]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4C51 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4C51 FirstGlance]. <br> | |
| - | ==Function== | + | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=GLC:ALPHA-D-GLUCOSE'>GLC</scene>, <scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</scene></td></tr> |
| + | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4c50|4c50]]</td></tr> | ||
| + | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Catalase_peroxidase Catalase peroxidase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.11.1.21 1.11.1.21] </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=4c51 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4c51 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4c51 RCSB], [http://www.ebi.ac.uk/pdbsum/4c51 PDBsum]</span></td></tr> | ||
| + | </table> | ||
| + | == Function == | ||
[[http://www.uniprot.org/uniprot/KATG_MYCTU KATG_MYCTU]] Bifunctional enzyme with both catalase and broad-spectrum peroxidase activity. Displays also NADH oxidase, isoniazid (INH) lyase and isonicotinoyl-NAD synthase activity. May play a role in the intracellular survival of mycobacteria. May be involved in DNA repair. Partly complements recA-deficient E.coli cells exposed to UV radiation, mitomycin C or hydrogen peroxide. Increases resistance to mitomycin C in E.coli cells deficient for either uvrA, uvrB or uvrC.<ref>PMID:10463167</ref> | [[http://www.uniprot.org/uniprot/KATG_MYCTU KATG_MYCTU]] Bifunctional enzyme with both catalase and broad-spectrum peroxidase activity. Displays also NADH oxidase, isoniazid (INH) lyase and isonicotinoyl-NAD synthase activity. May play a role in the intracellular survival of mycobacteria. May be involved in DNA repair. Partly complements recA-deficient E.coli cells exposed to UV radiation, mitomycin C or hydrogen peroxide. Increases resistance to mitomycin C in E.coli cells deficient for either uvrA, uvrB or uvrC.<ref>PMID:10463167</ref> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | Peroxidatic activation of the anti-tuberculosis pro-drug isoniazid by Mycobacterium tuberculosis catalase-peroxidase (KatG) is regulated by gating residues of a heme access channel. The steric restriction at the bottleneck of this channel is alleviated by replacement of residue Asp137 with Ser, according to crystallographic and kinetic studies. | ||
| + | |||
| + | Access channel residues Ser315 and Asp137 in Mycobacterium tuberculosis catalase-peroxidase (KatG) control peroxidatic activation of the pro-drug isoniazid.,Zhao X, Hersleth HP, Zhu J, Andersson KK, Magliozzo RS Chem Commun (Camb). 2013 Nov 4. PMID:24185282<ref>PMID:24185282</ref> | ||
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | + | </div> | |
| - | == | + | ==See Also== |
| - | + | *[[Catalase|Catalase]] | |
| + | == References == | ||
| + | <references/> | ||
| + | __TOC__ | ||
| + | </StructureSection> | ||
[[Category: Catalase peroxidase]] | [[Category: Catalase peroxidase]] | ||
[[Category: Mycobacterium sp. h37rv]] | [[Category: Mycobacterium sp. h37rv]] | ||
| - | [[Category: Andersson, K K | + | [[Category: Andersson, K K]] |
| - | [[Category: Hersleth, H P | + | [[Category: Hersleth, H P]] |
| - | [[Category: Magliozzo, R S | + | [[Category: Magliozzo, R S]] |
| - | [[Category: Zhao, X | + | [[Category: Zhao, X]] |
[[Category: Oxidoreductase]] | [[Category: Oxidoreductase]] | ||
Revision as of 07:39, 25 December 2014
Crystal Structure of the Catalase-Peroxidase (KatG) R418L mutant from Mycobacterium Tuberculosis
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