1p1h

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[[Image:1p1h.jpg|left|200px]]
 
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==Crystal structure of the 1L-myo-inositol/NAD+ complex==
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The line below this paragraph, containing "STRUCTURE_1p1h", creates the "Structure Box" on the page.
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<StructureSection load='1p1h' size='340' side='right'caption='[[1p1h]], [[Resolution|resolution]] 1.95&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'>[[1p1h]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1P1H OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1P1H 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]] 1.95&#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=NAD:NICOTINAMIDE-ADENINE-DINUCLEOTIDE'>NAD</scene></td></tr>
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{{STRUCTURE_1p1h| PDB=1p1h | 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=1p1h FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1p1h OCA], [https://pdbe.org/1p1h PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1p1h RCSB], [https://www.ebi.ac.uk/pdbsum/1p1h PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1p1h ProSAT]</span></td></tr>
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</table>
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'''Crystal structure of the 1L-myo-inositol/NAD+ complex'''
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== Function ==
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[https://www.uniprot.org/uniprot/INO1_YEAST INO1_YEAST]
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== Evolutionary Conservation ==
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==Overview==
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[[Image:Consurf_key_small.gif|200px|right]]
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1-l-myo-Inositol 1-phosphate synthase catalyzes the conversion of d-glucose 6-phosphate to 1-l-myo-inositol 1-phosphate, the first and rate-limiting step in the biosynthesis of all inositol-containing compounds. It involves an oxidation, an intramolecular aldol cyclization and a reduction. Here, the structure of the enzyme in its NAD(+)-bound, NADH-bound and apo forms is presented. These structures confirm that a significant portion of the active site is disordered in the absence of a small molecule, as none of the NAD(+)-bound forms of the enzyme have ordered active sites. On the other hand, the NADH-bound form contains two small molecules in the active site: a phosphate and glycerol. The entire active site is ordered in the presence of these two molecules, completely encapsulating them within the interior cavity. Significant changes in the structure of the active site are also seen, including repositioning of the nicotinamide ring and a motion of a loop region to accommodate the bound phosphate. These changes call into question the mechanism previously proposed for the enzyme. A comparison of the yeast and mycobacterial enzymes shows a surprisingly large change in the relative orientation of the catalytic and Rossmann-fold domains in the two enzymes.
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Check<jmol>
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<jmolCheckbox>
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==About this Structure==
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/p1/1p1h_consurf.spt"</scriptWhenChecked>
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1P1H is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1P1H OCA].
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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==Reference==
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</jmolCheckbox>
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Structures of NAD(+)- and NADH-bound 1-l-myo-inositol 1-phosphate synthase., Jin X, Geiger JH, Acta Crystallogr D Biol Crystallogr. 2003 Jul;59(Pt 7):1154-64. Epub 2003, Jun 27. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/12832758 12832758]
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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=1p1h ConSurf].
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[[Category: Inositol-3-phosphate synthase]]
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<div style="clear:both"></div>
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__TOC__
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</StructureSection>
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[[Category: Large Structures]]
[[Category: Saccharomyces cerevisiae]]
[[Category: Saccharomyces cerevisiae]]
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[[Category: Single protein]]
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[[Category: Geiger JH]]
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[[Category: Geiger, J H.]]
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[[Category: Jin X]]
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[[Category: Jin, X.]]
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[[Category: 1l-myo-inositol 1-phosphate]]
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[[Category: Nad+]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 04:33:47 2008''
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Current revision

Crystal structure of the 1L-myo-inositol/NAD+ complex

PDB ID 1p1h

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