1ok4

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(New page: 200px<br /> <applet load="1ok4" size="450" color="white" frame="true" align="right" spinBox="true" caption="1ok4, resolution 2.10&Aring;" /> '''ARCHAEAL FRUCTOSE 1...)
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[[Image:1ok4.gif|left|200px]]<br />
 
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<applet load="1ok4" size="450" color="white" frame="true" align="right" spinBox="true"
 
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caption="1ok4, resolution 2.10&Aring;" />
 
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'''ARCHAEAL FRUCTOSE 1,6-BISPHOSPHATE ALDOLASE COVALENTLY BOUND TO THE SUBSTRATE DIHYDROXYACETONE PHOSPHATE'''<br />
 
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==Overview==
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==Archaeal fructose 1,6-bisphosphate aldolase covalently bound to the substrate dihydroxyacetone phosphate==
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Fructose-1,6-bisphosphate aldolase (FBPA) catalyzes the reversible, cleavage of fructose 1,6-bisphosphate to glyceraldehyde 3-phosphate and, dihydroxyacetone phosphate in the glycolytic pathway. FBPAs from archaeal, organisms have recently been identified and characterized as a divergent, family of proteins. Here, we report the first crystal structure of an, archaeal FBPA at 1.9-A resolution. The structure of this 280-kDa protein, complex was determined using single wavelength anomalous dispersion, followed by 10-fold non-crystallographic symmetry averaging and refined to, an R-factor of 14.9% (Rfree 17.9%). The protein forms a dimer of, pentamers, consisting of subunits adopting the ubiquitous (betaalpha)8, barrel fold. Additionally, a crystal structure of the archaeal FBPA, covalently ... [[http://ispc.weizmann.ac.il/pmbin/getpm?12941964 (full description)]]
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<StructureSection load='1ok4' size='340' side='right'caption='[[1ok4]], [[Resolution|resolution]] 2.10&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1ok4]] is a 10 chain structure with sequence from [https://en.wikipedia.org/wiki/Thermoproteus_tenax Thermoproteus tenax]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1OK4 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1OK4 FirstGlance]. <br>
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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]] 2.1&#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=13P:1,3-DIHYDROXYACETONEPHOSPHATE'>13P</scene></td></tr>
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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=1ok4 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ok4 OCA], [https://pdbe.org/1ok4 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1ok4 RCSB], [https://www.ebi.ac.uk/pdbsum/1ok4 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1ok4 ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/ALF1_THETK ALF1_THETK] Catalyzes the reversible cleavage of fructose 1,6-bisphosphate (FBP) to glyceraldehyde 3-phosphate (GAP) and dihydroxyacetone phosphate (DHAP).
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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/ok/1ok4_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=1ok4 ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Fructose-1,6-bisphosphate aldolase (FBPA) catalyzes the reversible cleavage of fructose 1,6-bisphosphate to glyceraldehyde 3-phosphate and dihydroxyacetone phosphate in the glycolytic pathway. FBPAs from archaeal organisms have recently been identified and characterized as a divergent family of proteins. Here, we report the first crystal structure of an archaeal FBPA at 1.9-A resolution. The structure of this 280-kDa protein complex was determined using single wavelength anomalous dispersion followed by 10-fold non-crystallographic symmetry averaging and refined to an R-factor of 14.9% (Rfree 17.9%). The protein forms a dimer of pentamers, consisting of subunits adopting the ubiquitous (betaalpha)8 barrel fold. Additionally, a crystal structure of the archaeal FBPA covalently bound to dihydroxyacetone phosphate was solved at 2.1-A resolution. Comparison of the active site residues with those of classical FBPAs, which share no significant sequence identity but display the same overall fold, reveals a common ancestry between these two families of FBPAs. Structural comparisons, furthermore, establish an evolutionary link to the triosephosphate isomerases, a superfamily hitherto considered independent from the superfamily of aldolases.
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==About this Structure==
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Crystal structure of an archaeal class I aldolase and the evolution of (betaalpha)8 barrel proteins.,Lorentzen E, Pohl E, Zwart P, Stark A, Russell RB, Knura T, Hensel R, Siebers B J Biol Chem. 2003 Nov 21;278(47):47253-60. Epub 2003 Aug 26. PMID:12941964<ref>PMID:12941964</ref>
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1OK4 is a [[http://en.wikipedia.org/wiki/Single_protein Single protein]] structure of sequence from [[http://en.wikipedia.org/wiki/Thermoproteus_tenax Thermoproteus tenax]] with 13P as [[http://en.wikipedia.org/wiki/ligand ligand]]. Active as [[http://en.wikipedia.org/wiki/ ]], with EC number [[http://www.brenda-enzymes.info/php/result_flat.php4?ecno=4.1.2.13 4.1.2.13]]. Full crystallographic information is available from [[http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1OK4 OCA]].
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==Reference==
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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Crystal structure of an archaeal class I aldolase and the evolution of (betaalpha)8 barrel proteins., Lorentzen E, Pohl E, Zwart P, Stark A, Russell RB, Knura T, Hensel R, Siebers B, J Biol Chem. 2003 Nov 21;278(47):47253-60. Epub 2003 Aug 26. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=12941964 12941964]
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</div>
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[[Category: Single protein]]
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<div class="pdbe-citations 1ok4" style="background-color:#fffaf0;"></div>
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[[Category: Thermoproteus tenax]]
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[[Category: Hensel, R.]]
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[[Category: Lorentzen, E.]]
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[[Category: Pohl, E.]]
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[[Category: Siebers, B.]]
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[[Category: Stark, A.]]
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[[Category: Zwart, P.]]
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[[Category: 13P]]
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[[Category: 6-bisphosphate]]
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[[Category: aldolase]]
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[[Category: archaeal]]
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[[Category: fructose 1]]
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[[Category: glycolytic]]
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[[Category: lyase]]
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[[Category: tim barrel]]
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''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Mon Oct 29 18:25:30 2007''
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==See Also==
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*[[Aldolase 3D structures|Aldolase 3D structures]]
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== References ==
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<references/>
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__TOC__
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</StructureSection>
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[[Category: Large Structures]]
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[[Category: Thermoproteus tenax]]
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[[Category: Hensel R]]
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[[Category: Lorentzen E]]
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[[Category: Pohl E]]
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[[Category: Siebers B]]
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[[Category: Stark A]]
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[[Category: Zwart P]]

Current revision

Archaeal fructose 1,6-bisphosphate aldolase covalently bound to the substrate dihydroxyacetone phosphate

PDB ID 1ok4

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