1tzc: Difference between revisions

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-[[Image:1tzc.png|left|200px]]
+==Crystal structure of phosphoglucose/phosphomannose isomerase from Pyrobaculum aerophilum in complex with 5-phosphoarabinonate==
+<StructureSection load='1tzc' size='340' side='right' caption='[[1tzc]], [[Resolution|resolution]] 1.45&Aring;' scene=''>
+== Structural highlights ==
+<table><tr><td colspan='2'>[[1tzc]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Pyrobaculum_aerophilum Pyrobaculum aerophilum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1TZC OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1TZC FirstGlance]. <br>
+</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=PA5:5-PHOSPHOARABINONIC+ACID'>PA5</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene><br>
+<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1tzb|1tzb]]</td></tr>
+<tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">PAE1610 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=13773 Pyrobaculum aerophilum])</td></tr>
+<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1tzc FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1tzc OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1tzc RCSB], [http://www.ebi.ac.uk/pdbsum/1tzc PDBsum]</span></td></tr>
+<table>
+== 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/tz/1tzc_consurf.spt"</scriptWhenChecked>
+    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.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/chain_selection.php?pdb_ID=2ata ConSurf].
+<div style="clear:both"></div>
+<div style="background-color:#fffaf0;">
+== Publication Abstract from PubMed ==
+The crystal structure of a dual specificity phosphoglucose isomerase (PGI)/phosphomannose isomerase from Pyrobaculum aerophilum (PaPGI/PMI) has been determined in native form at 1.16-A resolution and in complex with the enzyme inhibitor 5-phosphoarabinonate at 1.45-A resolution. The similarity of its fold, with the inner core structure of PGIs from eubacterial and eukaryotic sources, confirms this enzyme as a member of the PGI superfamily. The almost total conservation of amino acids in the active site, including the glutamate base catalyst, shows that PaPGI/PMI uses the same catalytic mechanisms for both ring opening and isomerization for the interconversion of glucose 6-phosphate (Glc-6-P) to fructose 6-phosphate (Fru-6-P). The lack of structural differences between native and inhibitor-bound enzymes suggests this activity occurs without any of the conformational changes that are the hallmark of the well characterized PGI family. The lack of a suitable second base in the active site of PaPGI/PMI argues against a PMI mechanism involving a trans-enediol intermediate. Instead, PMI activity may be the result of additional space in the active site imparted by a threonine, in place of a glutamine in other PGI enzymes, which could permit rotation of the C-2-C-3 bond of mannose 6-phosphate.
-{{STRUCTURE_1tzc|  PDB=1tzc  |  SCENE=  }}
+A novel phosphoglucose isomerase (PGI)/phosphomannose isomerase from the crenarchaeon Pyrobaculum aerophilum is a member of the PGI superfamily: structural evidence at 1.16-A resolution.,Swan MK, Hansen T, Schonheit P, Davies C J Biol Chem. 2004 Sep 17;279(38):39838-45. Epub 2004 Jul 13. PMID:15252053<ref>PMID:15252053</ref>
-===Crystal structure of phosphoglucose/phosphomannose isomerase from Pyrobaculum aerophilum in complex with 5-phosphoarabinonate===
+From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
+</div>
-{{ABSTRACT_PUBMED_15252053}}
+==See Also==
+*[[Phosphoglucose isomerase|Phosphoglucose isomerase]]
-==About this Structure==
+== References ==
-[[1tzc]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Pyrobaculum_aerophilum Pyrobaculum aerophilum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1TZC OCA].
+<references/>
+__TOC__
-==Reference==
+</StructureSection>
-<ref group="xtra">PMID:015252053</ref><references group="xtra"/>
 [[Category: Pyrobaculum aerophilum]]
 [[Category: Davies, C.]]