1gr0: Difference between revisions

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[[Image:1gr0.gif|left|200px]]


{{Structure
==myo-inositol 1-phosphate synthase from Mycobacterium tuberculosis in complex with NAD and zinc.==
|PDB= 1gr0 |SIZE=350|CAPTION= <scene name='initialview01'>1gr0</scene>, resolution 1.95&Aring;
<StructureSection load='1gr0' size='340' side='right'caption='[[1gr0]], [[Resolution|resolution]] 1.95&Aring;' scene=''>
|SITE=
== Structural highlights ==
|LIGAND= <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene>, <scene name='pdbligand=CAC:CACODYLATE+ION'>CAC</scene> and <scene name='pdbligand=NAD:NICOTINAMIDE-ADENINE-DINUCLEOTIDE'>NAD</scene>
<table><tr><td colspan='2'>[[1gr0]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Mycobacterium_tuberculosis Mycobacterium tuberculosis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1GR0 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1GR0 FirstGlance]. <br>
|ACTIVITY= [http://en.wikipedia.org/wiki/Inositol-3-phosphate_synthase Inositol-3-phosphate synthase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=5.5.1.4 5.5.1.4]  
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.95&#8491;</td></tr>
|GENE=
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CAC:CACODYLATE+ION'>CAC</scene>, <scene name='pdbligand=NAD:NICOTINAMIDE-ADENINE-DINUCLEOTIDE'>NAD</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</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=1gr0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1gr0 OCA], [https://pdbe.org/1gr0 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1gr0 RCSB], [https://www.ebi.ac.uk/pdbsum/1gr0 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1gr0 ProSAT], [https://www.topsan.org/Proteins/TBSGC/1gr0 TOPSAN]</span></td></tr>
 
</table>
'''MYO-INOSITOL 1-PHOSPHATE SYNTHASE FROM MYCOBACTERIUM TUBERCULOSIS IN COMPLEX WITH NAD AND ZINC.'''
== Function ==
 
[https://www.uniprot.org/uniprot/INO1_MYCTU INO1_MYCTU] Catalyzes the conversion of glucose 6-phosphate to 1D-myo-inositol 3-phosphate.
 
== Evolutionary Conservation ==
==Overview==
[[Image:Consurf_key_small.gif|200px|right]]
Phosphatidylinositol (PI) is essential for Mycobacterium tuberculosis viability and the enzymes involved in the PI biosynthetic pathway are potential antimycobacterial agents for which little structural information is available. The rate-limiting step in the pathway is the production of (L)-myo-inositol 1-phosphate from (D)-glucose 6-phosphate, a complex reaction catalyzed by the enzyme inositol 1-phosphate synthase. We have determined the crystal structure of this enzyme from Mycobacterium tuberculosis (tbINO) at 1.95 A resolution, bound to the cofactor NAD+. The active site is located within a deep cleft at the junction between two domains. The unexpected presence of a zinc ion here suggests a mechanistic difference from the eukaryotic inositol synthases, which are stimulated by monovalent cations, that may be exploitable in developing selective inhibitors of tbINO.
Check<jmol>
 
  <jmolCheckbox>
==About this Structure==
    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/gr/1gr0_consurf.spt"</scriptWhenChecked>
1GR0 is a [[Single protein]] structure of sequence 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=1GR0 OCA].  
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
 
    <text>to colour the structure by Evolutionary Conservation</text>
==Reference==
  </jmolCheckbox>
Crystal structure of inositol 1-phosphate synthase from Mycobacterium tuberculosis, a key enzyme in phosphatidylinositol synthesis., Norman RA, McAlister MS, Murray-Rust J, Movahedzadeh F, Stoker NG, McDonald NQ, Structure. 2002 Mar;10(3):393-402. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/12005437 12005437]
</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=1gr0 ConSurf].
[[Category: Inositol-3-phosphate synthase]]
<div style="clear:both"></div>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Mycobacterium tuberculosis]]
[[Category: Mycobacterium tuberculosis]]
[[Category: Single protein]]
[[Category: McDonald NQ]]
[[Category: Mcdonald, N Q.]]
[[Category: Murray-Rust J]]
[[Category: Murray-Rust, J.]]
[[Category: Norman RA]]
[[Category: Norman, R A.]]
[[Category: TBSGC, TB Structural Genomics Consortium.]]
[[Category: CAC]]
[[Category: NAD]]
[[Category: ZN]]
[[Category: oxidoreductase]]
[[Category: protein structure initiative]]
[[Category: psi]]
[[Category: synthase]]
[[Category: tb]]
[[Category: tb structural genomics consortium]]
[[Category: tbsgc]]
 
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 11:26:46 2008''
Retrieved from "https://proteopedia.org/1gr0"