1obf: Difference between revisions

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[[Image:1obf.png|left|200px]]
==THE CRYSTAL STRUCTURE OF GLYCERALDEHYDE 3-PHOSPHATE DEHYDROGENASE FROM ALCALIGENES XYLOSOXIDANS AT 1.7 RESOLUTION.==
<StructureSection load='1obf' size='340' side='right' caption='[[1obf]], [[Resolution|resolution]] 1.70&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1obf]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Achromobacter_xylosoxidans Achromobacter xylosoxidans]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1OBF OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1OBF FirstGlance]. <br>
</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=K:POTASSIUM+ION'>K</scene>, <scene name='pdbligand=PG4:TETRAETHYLENE+GLYCOL'>PG4</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene><br>
<tr><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=CSW:CYSTEINE-S-DIOXIDE'>CSW</scene></td></tr>
<tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Glyceraldehyde-3-phosphate_dehydrogenase_(phosphorylating) Glyceraldehyde-3-phosphate dehydrogenase (phosphorylating)], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.2.1.12 1.2.1.12] </span></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=1obf FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1obf OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1obf RCSB], [http://www.ebi.ac.uk/pdbsum/1obf 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/ob/1obf_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 enzyme glyceraldehyde-3-phosphate dehydrogenase (GAPDH) from the Gram-negative denitrifying bacterial species Alcaligenes xylosoxidans was purified and crystallized as a contaminant protein during purification of nitrous oxide reductase. This is the first structure of a GAPDH from a denitrifying species. The crystal structure was solved at 1.7 A resolution by molecular replacement using the structure of GAPDH from Bacillus stearothermophilus as a starting model. The quality of the structure enabled the amino-acid sequence of the A. xylosoxidans GAPDH to be assigned. The structure is that of the apo-enzyme, lacking the NAD+ cofactor and with the active-site residue Cys154 oxidized. The global structure of the enzyme has a homotetrameric quaternary structure similar to that observed for its bacterial and eukaryotic counterparts. The essential role of Cys154 in the enzyme activity has been confirmed. In monomer O two half-occupancy sulfate ions were found at the active site, which are analogous to the substrate and the "attacking" phosphate seen in B. stearothermophilus. One half-occupancy sulfate ion is also located in the substrate-binding site of monomer P.


{{STRUCTURE_1obf|  PDB=1obf  |  SCENE=  }}
The structure of glyceraldehyde 3-phosphate dehydrogenase from Alcaligenes xylosoxidans at 1.7 A resolution.,Antonyuk SV, Eady RR, Strange RW, Hasnain SS Acta Crystallogr D Biol Crystallogr. 2003 May;59(Pt 5):835-42. Epub 2003, Apr 25. PMID:12777799<ref>PMID:12777799</ref>


===THE CRYSTAL STRUCTURE OF GLYCERALDEHYDE 3-PHOSPHATE DEHYDROGENASE FROM ALCALIGENES XYLOSOXIDANS AT 1.7 RESOLUTION.===
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 
</div>
{{ABSTRACT_PUBMED_12777799}}
== References ==
 
<references/>
==About this Structure==
__TOC__
[[1obf]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Achromobacter_xylosoxidans Achromobacter xylosoxidans]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1OBF OCA].
</StructureSection>
 
==See Also==
*[[Aldehyde dehydrogenase|Aldehyde dehydrogenase]]
 
==Reference==
<ref group="xtra">PMID:012777799</ref><references group="xtra"/>
[[Category: Achromobacter xylosoxidans]]
[[Category: Achromobacter xylosoxidans]]
[[Category: Antonyuk, S V.]]
[[Category: Antonyuk, S V.]]