1r4k: Difference between revisions
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==Solution Structure of the Drosophila Argonaute 1 PAZ Domain== | |||
<StructureSection load='1r4k' size='340' side='right'caption='[[1r4k]]' scene=''> | |||
| | == Structural highlights == | ||
<table><tr><td colspan='2'>[[1r4k]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Drosophila_melanogaster Drosophila melanogaster]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1R4K OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1R4K FirstGlance]. <br> | |||
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</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=1r4k FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1r4k OCA], [https://pdbe.org/1r4k PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1r4k RCSB], [https://www.ebi.ac.uk/pdbsum/1r4k PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1r4k ProSAT]</span></td></tr> | ||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/Q32KD4_DROME Q32KD4_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/r4/1r4k_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=1r4k ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
The discovery of RNA-mediated gene-silencing pathways, including RNA interference, highlights a fundamental role of short RNAs in eukaryotic gene regulation and antiviral defence. Members of the Dicer and Argonaute protein families are essential components of these RNA-silencing pathways. Notably, these two families possess an evolutionarily conserved PAZ (Piwi/Argonaute/Zwille) domain whose biochemical function is unknown. Here we report the nuclear magnetic resonance solution structure of the PAZ domain from Drosophila melanogaster Argonaute 1 (Ago1). The structure consists of a left-handed, six-stranded beta-barrel capped at one end by two alpha-helices and wrapped on one side by a distinctive appendage, which comprises a long beta-hairpin and a short alpha-helix. Using structural and biochemical analyses, we demonstrate that the PAZ domain binds a 5-nucleotide RNA with 1:1 stoichiometry. We map the RNA-binding surface to the open face of the beta-barrel, which contains amino acids conserved within the PAZ domain family, and we define the 5'-to-3' orientation of single-stranded RNA bound within that site. Furthermore, we show that PAZ domains from different human Argonaute proteins also bind RNA, establishing a conserved function for this domain. | |||
Structure and conserved RNA binding of the PAZ domain.,Yan KS, Yan S, Farooq A, Han A, Zeng L, Zhou MM Nature. 2003 Nov 27;426(6965):468-74. Epub 2003 Nov 16. PMID:14615802<ref>PMID:14615802</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 1r4k" style="background-color:#fffaf0;"></div> | |||
== | ==See Also== | ||
*[[Argonaute 3D structures|Argonaute 3D structures]] | |||
== References == | |||
== | <references/> | ||
__TOC__ | |||
</StructureSection> | |||
[[Category: Drosophila melanogaster]] | [[Category: Drosophila melanogaster]] | ||
[[Category: | [[Category: Large Structures]] | ||
[[Category: Farooq | [[Category: Farooq A]] | ||
[[Category: Han | [[Category: Han A]] | ||
[[Category: Yan | [[Category: Yan KS]] | ||
[[Category: Yan | [[Category: Yan S]] | ||
[[Category: Zeng | [[Category: Zeng L]] | ||
[[Category: Zhou | [[Category: Zhou M-M]] | ||
Latest revision as of 09:03, 22 May 2024
Solution Structure of the Drosophila Argonaute 1 PAZ Domain
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