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1u0f

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[[Image:1u0f.jpg|left|200px]]
 
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==Crystal structure of mouse phosphoglucose isomerase in complex with glucose 6-phosphate==
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The line below this paragraph, containing "STRUCTURE_1u0f", creates the "Structure Box" on the page.
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<StructureSection load='1u0f' size='340' side='right'caption='[[1u0f]], [[Resolution|resolution]] 1.60&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'>[[1u0f]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1U0F OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1U0F 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]] 1.6&#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=BME:BETA-MERCAPTOETHANOL'>BME</scene>, <scene name='pdbligand=G6P:ALPHA-D-GLUCOSE-6-PHOSPHATE'>G6P</scene>, <scene name='pdbligand=G6Q:GLUCOSE-6-PHOSPHATE'>G6Q</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
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{{STRUCTURE_1u0f| PDB=1u0f | 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=1u0f FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1u0f OCA], [https://pdbe.org/1u0f PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1u0f RCSB], [https://www.ebi.ac.uk/pdbsum/1u0f PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1u0f ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/G6PI_MOUSE G6PI_MOUSE] Besides it's role as a glycolytic enzyme, mammalian GPI can function as a tumor-secreted cytokine and an angiogenic factor (AMF) that stimulates endothelial cell motility. GPI is also a neurotrophic factor (Neuroleukin) for spinal and sensory neurons.
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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/u0/1u0f_consurf.spt"</scriptWhenChecked>
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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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</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=1u0f ConSurf].
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<div style="clear:both"></div>
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'''Crystal structure of mouse phosphoglucose isomerase in complex with glucose 6-phosphate'''
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==See Also==
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*[[Phosphoglucose isomerase 3D structures|Phosphoglucose isomerase 3D structures]]
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__TOC__
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==Overview==
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</StructureSection>
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Phosphoglucose isomerase (PGI) is an enzyme of glycolysis that interconverts glucose 6-phosphate (G6P) and fructose 6-phosphate (F6P) but, outside the cell, is a multifunctional cytokine. High-resolution crystal structures of the enzyme from mouse have been determined in native form and in complex with the inhibitor erythrose 4-phosphate, and with the substrate glucose 6-phosphate. In the substrate-bound structure, the glucose sugar is observed in both straight-chain and ring forms. This structure supports a specific role for Lys518 in enzyme-catalyzed ring opening and we present a "push-pull" mechanism in which His388 breaks the O5-C1 bond by donating a proton to the ring oxygen atom and, simultaneously, Lys518 abstracts a proton from the C1 hydroxyl group. The reverse occurs in ring closure. The transition from ring form to straight-chain substrate is achieved through rotation of the C3-C4 bond, which brings the C1-C2 region into close proximity to Glu357, the base catalyst for the isomerization step. The structure with G6P also explains the specificity of PGI for glucose 6-phosphate over mannose 6-isomerase (M6P). To isomerize M6P to F6P requires a rotation of its C2-C3 bond but in PGI this is sterically blocked by Gln511.
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[[Category: Large Structures]]
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==About this Structure==
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1U0F is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1U0F OCA].
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==Reference==
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The crystal structure of mouse phosphoglucose isomerase at 1.6A resolution and its complex with glucose 6-phosphate reveals the catalytic mechanism of sugar ring opening., Graham Solomons JT, Zimmerly EM, Burns S, Krishnamurthy N, Swan MK, Krings S, Muirhead H, Chirgwin J, Davies C, J Mol Biol. 2004 Sep 17;342(3):847-60. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/15342241 15342241]
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[[Category: Glucose-6-phosphate isomerase]]
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[[Category: Mus musculus]]
[[Category: Mus musculus]]
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[[Category: Single protein]]
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[[Category: Burns S]]
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[[Category: Burns, S.]]
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[[Category: Chirgwin J]]
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[[Category: Chirgwin, J.]]
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[[Category: Davies C]]
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[[Category: Davies, C.]]
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[[Category: Krings S]]
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[[Category: Krings, S.]]
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[[Category: Krishnamurthy N]]
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[[Category: Krishnamurthy, N.]]
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[[Category: Muirhead H]]
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[[Category: Muirhead, H.]]
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[[Category: Solomons JTG]]
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[[Category: Solomons, J T.G.]]
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[[Category: Swan MK]]
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[[Category: Swan, M K.]]
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[[Category: Zimmerly EM]]
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[[Category: Zimmerly, E M.]]
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[[Category: Aldose-ketose isomerase]]
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[[Category: Dimer]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 10:35:45 2008''
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Current revision

Crystal structure of mouse phosphoglucose isomerase in complex with glucose 6-phosphate

PDB ID 1u0f

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