3g0h: Difference between revisions
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< | ==Human dead-box RNA helicase DDX19, in complex with an ATP-analogue and RNA== | ||
<StructureSection load='3g0h' size='340' side='right'caption='[[3g0h]], [[Resolution|resolution]] 2.70Å' scene=''> | |||
You may | == Structural highlights == | ||
<table><tr><td colspan='2'>[[3g0h]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3G0H OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3G0H 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]] 2.7Å</td></tr> | |||
- | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ANP:PHOSPHOAMINOPHOSPHONIC+ACID-ADENYLATE+ESTER'>ANP</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</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=3g0h FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3g0h OCA], [https://pdbe.org/3g0h PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3g0h RCSB], [https://www.ebi.ac.uk/pdbsum/3g0h PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3g0h ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/DD19B_HUMAN DD19B_HUMAN] ATP-dependent RNA helicase involved in mRNA export from the nucleus. Rather than unwinding RNA duplexes, DDX19B functions as a remodeler of ribonucleoprotein particles, whereby proteins bound to nuclear mRNA are dissociated and replaced by cytoplasmic mRNA binding proteins. | |||
== 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/g0/3g0h_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=3g0h ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
DEXD/H-box RNA helicases couple ATP hydrolysis to RNA remodeling by an unknown mechanism. We used x-ray crystallography and biochemical analysis of the human DEXD/H-box protein DDX19 to investigate its regulatory mechanism. The crystal structures of DDX19, in its RNA-bound prehydrolysis and free posthydrolysis state, reveal an alpha-helix that inserts between the conserved domains of the free protein to negatively regulate ATPase activity. This finding was corroborated by biochemical data that confirm an autoregulatory function of the N-terminal region of the protein. This is the first study describing crystal structures of a DEXD/H-box protein in its open and closed cleft conformations. | |||
The DEXD/H-box RNA helicase DDX19 is regulated by an {alpha}-helical switch.,Collins R, Karlberg T, Lehtio L, Schutz P, van den Berg S, Dahlgren LG, Hammarstrom M, Weigelt J, Schuler H J Biol Chem. 2009 Apr 17;284(16):10296-300. Epub 2009 Feb 25. PMID:19244245<ref>PMID:19244245</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 3g0h" style="background-color:#fffaf0;"></div> | |||
== | |||
==See Also== | ==See Also== | ||
*[[Helicase 3D structures|Helicase 3D structures]] | |||
== References == | |||
*[[Helicase|Helicase]] | <references/> | ||
__TOC__ | |||
</StructureSection> | |||
== | |||
< | |||
[[Category: Homo sapiens]] | [[Category: Homo sapiens]] | ||
[[Category: | [[Category: Large Structures]] | ||
[[Category: | [[Category: Arrowsmith CH]] | ||
[[Category: Berglund | [[Category: Berglund H]] | ||
[[Category: Bountra | [[Category: Bountra C]] | ||
[[Category: Collins | [[Category: Collins R]] | ||
[[Category: Dahlgren | [[Category: Dahlgren LG]] | ||
[[Category: Edwards | [[Category: Edwards AM]] | ||
[[Category: Flodin | [[Category: Flodin S]] | ||
[[Category: Flores | [[Category: Flores A]] | ||
[[Category: Graslund | [[Category: Graslund S]] | ||
[[Category: Hammarstrom | [[Category: Hammarstrom M]] | ||
[[Category: Johansson | [[Category: Johansson A]] | ||
[[Category: Johansson | [[Category: Johansson I]] | ||
[[Category: Karlberg | [[Category: Karlberg T]] | ||
[[Category: Kotenyova | [[Category: Kotenyova T]] | ||
[[Category: Lehtio | [[Category: Lehtio L]] | ||
[[Category: Moche | [[Category: Moche M]] | ||
[[Category: Nilsson | [[Category: Nilsson ME]] | ||
[[Category: Nordlund | [[Category: Nordlund P]] | ||
[[Category: Nyman | [[Category: Nyman T]] | ||
[[Category: Persson | [[Category: Persson C]] | ||
[[Category: Sagemark J]] | |||
[[Category: Sagemark | [[Category: Schuler H]] | ||
[[Category: Schuler | [[Category: Schutz P]] | ||
[[Category: Schutz | [[Category: Siponen MI]] | ||
[[Category: Siponen | [[Category: Thorsell AG]] | ||
[[Category: Thorsell | [[Category: Tresaugues L]] | ||
[[Category: Tresaugues | [[Category: Van Den Berg S]] | ||
[[Category: | [[Category: Weigelt J]] | ||
[[Category: | [[Category: Welin M]] | ||
[[Category: | [[Category: Wisniewska M]] | ||
[[Category: | |||