View source for 1nvj


==Deletion Mutant (Delta 141) of Molybdopterin Synthase==
<StructureSection load='1nvj' size='340' side='right'caption='[[1nvj]], [[Resolution|resolution]] 2.15&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1nvj]] is a 6 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1NVJ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1NVJ FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.15&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=FMT:FORMIC+ACID'>FMT</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</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=1nvj FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1nvj OCA], [https://pdbe.org/1nvj PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1nvj RCSB], [https://www.ebi.ac.uk/pdbsum/1nvj PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1nvj ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/MOAE_ECOLI MOAE_ECOLI] Converts molybdopterin precursor Z to molybdopterin. This requires the incorporation of two sulfur atoms into precursor Z to generate a dithiolene group. The sulfur is provided by MoaD.
== 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/nv/1nvj_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/main_output.php?pdb_ID=1nvj ConSurf].
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== Publication Abstract from PubMed ==
Molybdenum cofactor biosynthesis is an evolutionarily conserved pathway present in eubacteria, archaea, and eukaryotes, including humans. Genetic deficiencies of enzymes involved in cofactor biosynthesis in humans lead to a severe and usually fatal disease. The molybdenum cofactor contains a tricyclic pyranopterin, termed molybdopterin, that bears the cis-dithiolene group responsible for molybdenum ligation. The dithiolene group of molybdopterin is generated by molybdopterin synthase, which consists of a large (MoaE) and small (MoaD) subunit. The crystal structure of molybdopterin synthase revealed a heterotetrameric enzyme in which the C terminus of each MoaD subunit is deeply inserted into a MoaE subunit to form the active site. In the activated form of the enzyme, the MoaD C terminus is present as a thiocarboxylate. The present study identified the position of the thiocarboxylate sulfur by exploiting the anomalous signal originating from the sulfur atom. The structure of molybdopterin synthase in a novel crystal form revealed a binding pocket for the terminal phosphate of molybdopterin, the product of the enzyme, and suggested a binding site for the pterin moiety present in precursor Z and molybdopterin. Finally, the crystal structure of the MoaE homodimer provides insights into the conformational changes accompanying binding of the MoaD subunit.

Structural studies of molybdopterin synthase provide insights into its catalytic mechanism.,Rudolph MJ, Wuebbens MM, Turque O, Rajagopalan KV, Schindelin H J Biol Chem. 2003 Apr 18;278(16):14514-22. Epub 2003 Feb 5. PMID:12571227<ref>PMID:12571227</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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<div class="pdbe-citations 1nvj" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Escherichia coli]]
[[Category: Large Structures]]
[[Category: Rajagopalan KV]]
[[Category: Rudolph MJ]]
[[Category: Schindelin H]]
[[Category: Turque O]]
[[Category: Wuebbens MM]]