This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.
Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.
1rm0
From Proteopedia
(Difference between revisions)
| (2 intermediate revisions not shown.) | |||
| Line 1: | Line 1: | ||
| + | |||
==Crystal Structure of Myo-Inositol 1-Phosphate Synthase From Saccharomyces cerevisiae In Complex With NAD+ and 2-deoxy-D-glucitol 6-(E)-vinylhomophosphonate== | ==Crystal Structure of Myo-Inositol 1-Phosphate Synthase From Saccharomyces cerevisiae In Complex With NAD+ and 2-deoxy-D-glucitol 6-(E)-vinylhomophosphonate== | ||
| - | <StructureSection load='1rm0' size='340' side='right' caption='[[1rm0]], [[Resolution|resolution]] 2.05Å' scene=''> | + | <StructureSection load='1rm0' size='340' side='right'caption='[[1rm0]], [[Resolution|resolution]] 2.05Å' scene=''> |
== Structural highlights == | == Structural highlights == | ||
| - | <table><tr><td colspan='2'>[[1rm0]] is a 2 chain structure with sequence from [ | + | <table><tr><td colspan='2'>[[1rm0]] is a 2 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=1RM0 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1RM0 FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=D6P:(3,4,5,7-TETRAHYDROXY-HEPT-1-ENYL)-PHOSPHONIC+ACID'>D6P</scene>, <scene name='pdbligand=MN:MANGANESE+(II)+ION'>MN</scene>, <scene name='pdbligand=NAI:1,4-DIHYDRONICOTINAMIDE+ADENINE+DINUCLEOTIDE'>NAI</scene | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.05Å</td></tr> |
| - | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=D6P:(3,4,5,7-TETRAHYDROXY-HEPT-1-ENYL)-PHOSPHONIC+ACID'>D6P</scene>, <scene name='pdbligand=MN:MANGANESE+(II)+ION'>MN</scene>, <scene name='pdbligand=NAI:1,4-DIHYDRONICOTINAMIDE+ADENINE+DINUCLEOTIDE'>NAI</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=1rm0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1rm0 OCA], [https://pdbe.org/1rm0 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1rm0 RCSB], [https://www.ebi.ac.uk/pdbsum/1rm0 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1rm0 ProSAT]</span></td></tr> | |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | + | |
</table> | </table> | ||
| + | == Function == | ||
| + | [https://www.uniprot.org/uniprot/INO1_YEAST INO1_YEAST] | ||
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
[[Image:Consurf_key_small.gif|200px|right]] | [[Image:Consurf_key_small.gif|200px|right]] | ||
Check<jmol> | Check<jmol> | ||
<jmolCheckbox> | <jmolCheckbox> | ||
| - | <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/rm/1rm0_consurf.spt"</scriptWhenChecked> | + | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/rm/1rm0_consurf.spt"</scriptWhenChecked> |
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | ||
<text>to colour the structure by Evolutionary Conservation</text> | <text>to colour the structure by Evolutionary Conservation</text> | ||
| Line 18: | Line 20: | ||
</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=1rm0 ConSurf]. | </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=1rm0 ConSurf]. | ||
<div style="clear:both"></div> | <div style="clear:both"></div> | ||
| - | <div style="background-color:#fffaf0;"> | ||
| - | == Publication Abstract from PubMed == | ||
| - | 1l-myo-inositol 1-phosphate (MIP) synthase catalyzes the conversion of d-glucose 6-phosphate to 1l-myo-inositol 1-phosphate, the first and rate-limiting step in the biosynthesis of all inositol-containing compounds. It involves an oxidation, enolization, intramolecular aldol cyclization, and reduction. Here we present the structure of MIP synthase in complex with NAD(+) and a high-affinity inhibitor, 2-deoxy-d-glucitol 6-(E)-vinylhomophosphonate. This structure reveals interactions between the enzyme active site residues and the inhibitor that are significantly different from that proposed for 2-deoxy-d-glucitol 6-phosphate in the previously published structure of MIP synthase-NAD(+)-2-deoxy-d-glucitol 6-phosphate. There are several other conformational changes in NAD(+) and the enzyme active site as well. Based on the new structural data, we propose a new and completely different mechanism for MIP synthase. | ||
| - | |||
| - | The structure of the 1L-myo-inositol-1-phosphate synthase-NAD+-2-deoxy-D-glucitol 6-(E)-vinylhomophosphonate complex demands a revision of the enzyme mechanism.,Jin X, Foley KM, Geiger JH J Biol Chem. 2004 Apr 2;279(14):13889-95. Epub 2003 Dec 18. PMID:14684747<ref>PMID:14684747</ref> | ||
| - | |||
| - | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
| - | </div> | ||
| - | <div class="pdbe-citations 1rm0" style="background-color:#fffaf0;"></div> | ||
| - | == References == | ||
| - | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
| - | [[Category: | + | [[Category: Large Structures]] |
| - | [[Category: | + | [[Category: Saccharomyces cerevisiae]] |
| - | [[Category: Foley | + | [[Category: Foley KM]] |
| - | [[Category: Geiger | + | [[Category: Geiger JH]] |
| - | [[Category: Jin | + | [[Category: Jin X]] |
| - | + | ||
| - | + | ||
Current revision
Crystal Structure of Myo-Inositol 1-Phosphate Synthase From Saccharomyces cerevisiae In Complex With NAD+ and 2-deoxy-D-glucitol 6-(E)-vinylhomophosphonate
| |||||||||||
