View source for 1yqt


==RNase-L Inhibitor==
<StructureSection load='1yqt' size='340' side='right'caption='[[1yqt]], [[Resolution|resolution]] 1.90&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1yqt]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Pyrococcus_furiosus Pyrococcus furiosus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1YQT OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1YQT 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]] 1.9&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ADP:ADENOSINE-5-DIPHOSPHATE'>ADP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</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=1yqt FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1yqt OCA], [https://pdbe.org/1yqt PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1yqt RCSB], [https://www.ebi.ac.uk/pdbsum/1yqt PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1yqt ProSAT]</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/yq/1yqt_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.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=1yqt ConSurf].
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== Publication Abstract from PubMed ==
The ABC ATPase RNase-L inhibitor (RLI) emerges as a key enzyme in ribosome biogenesis, formation of translation preinitiation complexes, and assembly of HIV capsids. To help reveal the structural mechanism of RLI, we determined the Mg2+-ADP bound crystal structure of the twin cassette ATPase of P. furiosus RLI at 1.9 A resolution and analyzed functional motifs in yeast in vivo. RLI shows similarities but also differences to known ABC enzyme structures. Twin nucleotide binding domains (NBD1 and NBD2) are arranged to form two composite active sites in their interface cleft, indicating they undergo the ATP-driven clamp-like motion of the NBDs of ABC transporters. An unusual "hinge" domain along the NBD1:NBD2 interface provides a frame for association and possibly ATP-driven conformational changes of the NBDs. Our results establish a first structural basis for ABC domain heterodimers and suggest that RLI may act as mechanochemical enzyme in ribosome and HIV capsid biogenesis.

X-ray structure of RLI, an essential twin cassette ABC ATPase involved in ribosome biogenesis and HIV capsid assembly.,Karcher A, Buttner K, Martens B, Jansen RP, Hopfner KP Structure. 2005 Apr;13(4):649-59. PMID:15837203<ref>PMID:15837203</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 1yqt" style="background-color:#fffaf0;"></div>
== References ==
<references/>
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</StructureSection>
[[Category: Large Structures]]
[[Category: Pyrococcus furiosus]]
[[Category: Buttner K]]
[[Category: Hopfner KP]]
[[Category: Jansen RP]]
[[Category: Karcher A]]
[[Category: Martens B]]