3c8n

From Proteopedia

(Difference between revisions)
Jump to: navigation, search
Current revision (01:40, 21 November 2024) (edit) (undo)
 
(7 intermediate revisions not shown.)
Line 1: Line 1:
-
{{Seed}}
 
-
[[Image:3c8n.png|left|200px]]
 
-
<!--
+
==Crystal structure of apo-FGD1 from Mycobacterium tuberculosis==
-
The line below this paragraph, containing "STRUCTURE_3c8n", creates the "Structure Box" on the page.
+
<StructureSection load='3c8n' size='340' side='right'caption='[[3c8n]], [[Resolution|resolution]] 1.90&Aring;' scene=''>
-
You may change the PDB parameter (which sets the PDB file loaded into the applet)
+
== Structural highlights ==
-
or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
+
<table><tr><td colspan='2'>[[3c8n]] 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=3C8N OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3C8N FirstGlance]. <br>
-
or leave the SCENE parameter empty for the default display.
+
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.9&#8491;</td></tr>
-
-->
+
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene></td></tr>
-
{{STRUCTURE_3c8n| PDB=3c8n | SCENE= }}
+
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3c8n FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3c8n OCA], [https://pdbe.org/3c8n PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3c8n RCSB], [https://www.ebi.ac.uk/pdbsum/3c8n PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3c8n ProSAT]</span></td></tr>
 +
</table>
 +
== Function ==
 +
[https://www.uniprot.org/uniprot/FGD_MYCTU FGD_MYCTU] Catalyzes the coenzyme F420-dependent oxidation of glucose 6-phosphate to 6-phosphogluconolactone. Is essential for the bioreductive activation of the prodrug PA-824 (nitroimidazo-oxazine) developed for anti-tuberculosis therapy against both replicating and persistent bacteria. It does not interact directly with PA-824 but, rather, provides reduced F420 to an accessory protein (Rv3547), which in turn activates PA-824. Also probably has a role in resistance to oxidative stress, via its consumption of G6P that serves as a source of reducing power to combat oxidative stress in mycobacteria.<ref>PMID:10879539</ref> <ref>PMID:18434308</ref>
 +
== Evolutionary Conservation ==
 +
[[Image:Consurf_key_small.gif|200px|right]]
 +
Check<jmol>
 +
<jmolCheckbox>
 +
<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/c8/3c8n_consurf.spt"</scriptWhenChecked>
 +
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked>
 +
<text>to colour the structure by Evolutionary Conservation</text>
 +
</jmolCheckbox>
 +
</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=3c8n ConSurf].
 +
<div style="clear:both"></div>
 +
<div style="background-color:#fffaf0;">
 +
== Publication Abstract from PubMed ==
 +
The modified flavin coenzyme F(420) is found in a restricted number of microorganisms. It is widely distributed in mycobacteria, however, where it is important in energy metabolism, and in Mycobacterium tuberculosis (Mtb) is implicated in redox processes related to non-replicating persistence. In Mtb, the F(420)-dependent glucose-6-phosphate dehydrogenase FGD1 provides reduced F(420) for the in vivo activation of the nitroimidazopyran prodrug PA-824, currently being developed for anti-tuberculosis therapy against both replicating and persistent bacteria. The structure of M. tuberculosis FGD1 has been determined by x-ray crystallography both in its apo state and in complex with F(420) and citrate at resolutions of 1.90 and 1.95 A(,) respectively. The structure reveals a highly specific F(420) binding mode, which is shared with several other F(420)-dependent enzymes. Citrate occupies the substrate binding pocket adjacent to F(420) and is shown to be a competitive inhibitor (IC(50) 43 microm). Modeling of the binding of the glucose 6-phosphate (G6P) substrate identifies a positively charged phosphate binding pocket and shows that G6P, like citrate, packs against the isoalloxazine moiety of F(420) and helps promote a butterfly bend conformation that facilitates F(420) reduction and catalysis.
-
===Crystal structure of apo-FGD1 from Mycobacterium tuberculosis===
+
Crystal structures of F420-dependent glucose-6-phosphate dehydrogenase FGD1 involved in the activation of the anti-tuberculosis drug candidate PA-824 reveal the basis of coenzyme and substrate binding.,Bashiri G, Squire CJ, Moreland NJ, Baker EN J Biol Chem. 2008 Jun 20;283(25):17531-41. Epub 2008 Apr 22. PMID:18434308<ref>PMID:18434308</ref>
 +
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 +
</div>
 +
<div class="pdbe-citations 3c8n" style="background-color:#fffaf0;"></div>
-
==About this Structure==
+
==See Also==
-
3C8N is a 4 chains structure of sequences from [http://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=3C8N OCA].
+
*[[Glucose 6-phosphate dehydrogenase|Glucose 6-phosphate dehydrogenase]]
-
[[Category: Mycobacterium tuberculosis h37rv]]
+
== References ==
-
[[Category: Baker, E N.]]
+
<references/>
-
[[Category: Bashiri, G.]]
+
__TOC__
-
[[Category: Moreland, N M.]]
+
</StructureSection>
-
[[Category: Squire, C J.]]
+
[[Category: Large Structures]]
-
[[Category: Non-prolyl cis-peptide]]
+
[[Category: Mycobacterium tuberculosis H37Rv]]
-
[[Category: Oxidoreductase]]
+
[[Category: Baker EN]]
-
[[Category: Tim barrel]]
+
[[Category: Bashiri G]]
-
 
+
[[Category: Moreland NJ]]
-
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Sep 23 20:21:23 2009''
+
[[Category: Squire CJ]]

Current revision

Crystal structure of apo-FGD1 from Mycobacterium tuberculosis

PDB ID 3c8n

Drag the structure with the mouse to rotate

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/3c8n"
Personal tools