2gq2

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{{Seed}}
 
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[[Image:2gq2.png|left|200px]]
 
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==Mycobacterium tuberculosis ThyX-NADP complex==
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The line below this paragraph, containing "STRUCTURE_2gq2", creates the "Structure Box" on the page.
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<StructureSection load='2gq2' size='340' side='right'caption='[[2gq2]], [[Resolution|resolution]] 2.10&Aring;' scene=''>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[2gq2]] 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=2GQ2 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2GQ2 FirstGlance]. <br>
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or leave the SCENE parameter empty for the default display.
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.1&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=IOD:IODIDE+ION'>IOD</scene>, <scene name='pdbligand=K:POTASSIUM+ION'>K</scene>, <scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene>, <scene name='pdbligand=NAP:NADP+NICOTINAMIDE-ADENINE-DINUCLEOTIDE+PHOSPHATE'>NAP</scene>, <scene name='pdbligand=PGE:TRIETHYLENE+GLYCOL'>PGE</scene></td></tr>
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{{STRUCTURE_2gq2| PDB=2gq2 | SCENE= }}
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2gq2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2gq2 OCA], [https://pdbe.org/2gq2 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2gq2 RCSB], [https://www.ebi.ac.uk/pdbsum/2gq2 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2gq2 ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/THYX_MYCTU THYX_MYCTU] Catalyzes the formation of dTMP and tetrahydrofolate from dUMP and methylenetetrahydrofolate (By similarity).
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/gq/2gq2_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=2gq2 ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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The novel flavin-dependent thymidylate synthase, ThyX, is absent in humans but several pathogenic bacteria depend exclusively on ThyX activity to synthesize thymidylate. Reduction of the enzyme-bound FAD by NADPH is suggested to be the critical first step in ThyX catalysis. We soaked Mycobacterium tuberculosis ThyX-FAD-BrdUMP ternary complex crystals in a solution containing NADP+ to gain structural insights into the reductive step of the catalytic cycle. Surprisingly, the NADP+ displaced both FAD and BrdUMP from the active site. In the resultant ThyX-NADP+ binary complex, the AMP moiety is bound in a deep pocket similar to that of the same moiety of FAD in the ternary complex, while the nicotinamide part of NADP+ is engaged in a limited number of contacts with ThyX. The additional 2'-phosphate group attached to the AMP ribose of NADP+ could be accommodated with minor rearrangement of water molecules. The newly introduced 2'-phosphate groups are engaged in water-mediated interactions across the non-crystallographic 2-fold axis of the ThyX tetramer, suggesting possibilities for design of high-affinity bivalent inhibitors of this intriguing enzyme.
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===Mycobacterium tuberculosis ThyX-NADP complex===
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NADP+ expels both the co-factor and a substrate analog from the Mycobacterium tuberculosis ThyX active site: opportunities for anti-bacterial drug design.,Sampathkumar P, Turley S, Sibley CH, Hol WG J Mol Biol. 2006 Jun 30;360(1):1-6. Epub 2006 May 12. PMID:16730023<ref>PMID:16730023</ref>
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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<div class="pdbe-citations 2gq2" style="background-color:#fffaf0;"></div>
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==See Also==
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The line below this paragraph, {{ABSTRACT_PUBMED_16730023}}, adds the Publication Abstract to the page
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*[[Thymidylate synthase 3D structures|Thymidylate synthase 3D structures]]
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(as it appears on PubMed at http://www.pubmed.gov), where 16730023 is the PubMed ID number.
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== References ==
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<references/>
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{{ABSTRACT_PUBMED_16730023}}
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__TOC__
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</StructureSection>
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==About this Structure==
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[[Category: Large Structures]]
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2GQ2 is a 4 chains structure of sequences from [http://en.wikipedia.org/wiki/Mycobacterium_tuberculosis Mycobacterium tuberculosis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2GQ2 OCA].
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[[Category: Mycobacterium tuberculosis H37Rv]]
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[[Category: Hol WG]]
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==Reference==
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[[Category: Sampathkumar P]]
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<ref group="xtra">PMID:16730023</ref><ref group="xtra">PMID:16139296</ref><references group="xtra"/>
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[[Category: Sibley CH]]
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[[Category: Mycobacterium tuberculosis]]
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[[Category: Turley S]]
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[[Category: Hol, W G.]]
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[[Category: Sampathkumar, P.]]
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[[Category: Sibley, C H.]]
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[[Category: Turley, S.]]
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[[Category: Bivalent drug]]
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[[Category: Fdt]]
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[[Category: Flavin dependent thymidylate synthase]]
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[[Category: Inhibitor design]]
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[[Category: M tuberculosis]]
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[[Category: Thyx]]
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[[Category: Tscp]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Feb 16 22:26:59 2009''
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Current revision

Mycobacterium tuberculosis ThyX-NADP complex

PDB ID 2gq2

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