View source for 2qrx


==Crystal structure of Drosophila melanogaster Translin protein==
<StructureSection load='2qrx' size='340' side='right'caption='[[2qrx]], [[Resolution|resolution]] 3.60&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[2qrx]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Drosophila_melanogaster Drosophila melanogaster]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2QRX OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2QRX 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]] 3.6&#8491;</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=2qrx FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2qrx OCA], [https://pdbe.org/2qrx PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2qrx RCSB], [https://www.ebi.ac.uk/pdbsum/2qrx PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2qrx ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/Q7JVK6_DROME Q7JVK6_DROME] 
== 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/qr/2qrx_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=2qrx ConSurf].
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== Publication Abstract from PubMed ==
Translin protein is highly conserved in eukaryotes. Human translin binds both ssDNA and RNA. Its nucleic acid binding site results from a combination of basic regions in the octameric structure. We report here the first biochemical characterization of wild-type Drosophila melanogaster (drosophila) translin and a chimeric translin, and present 3.5 A resolution crystal structures of drosophila P168S mutant translin from two crystal forms. The wild-type drosophila translin most likely exists as an octamer/decamer, and binds to the ssDNA Bcl-CL1 sequence. In contrast, ssDNA binding-incompetent drosophila P168S mutant translin exists as a tetramer. The structures of the mutant translin are identical in both crystal forms, and their C-terminal residues are disordered. The chimeric protein, possessing two nucleic acid binding motifs of drosophila translin, the C-terminal residues of human translin, and serine at position 168, attains the octameric state and binds to ssDNA. The present studies suggest that the oligomeric status of translin critically influences the DNA binding properties of translin proteins.

Crystal structures of Drosophila mutant translin and characterization of translin variants reveal the structural plasticity of translin proteins.,Gupta GD, Makde RD, Rao BJ, Kumar V FEBS J. 2008 Aug;275(16):4235-49. Epub 2008 Jul 18. PMID:18647346<ref>PMID:18647346</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Drosophila melanogaster]]
[[Category: Large Structures]]
[[Category: Gupta GD]]
[[Category: Kumar V]]
[[Category: Makde RD]]