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 {{Theoretical_model}}
-[[Image:2ads.png|left|200px]]
+==THEORETICAL MODEL OF DNA-MEDIATED RNA CLEAVAGE BY A.AEOLICUS ARGONAUTE PROTEIN.==
+<StructureSection load='2ads' size='340' side='right'caption='[[2ads]]' scene=''>
+== Structural highlights ==
+<table><tr><td colspan='2'>For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2ADS FirstGlance]. <br>
+</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=2ads FirstGlance], [https://www.ebi.ac.uk/pdbsum/2ads PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2ads ProSAT]</span></td></tr>
+</table>
+<div style="background-color:#fffaf0;">
+== Publication Abstract from PubMed ==
+Argonaute (Ago) proteins constitute a key component of the RNA-induced silencing complex (RISC). We report the crystal structure of Aquifex aeolicus Ago (Aa-Ago) together with binding and cleavage studies, which establish this eubacterial Ago as a bona fide guide DNA strand-mediated site-specific RNA endonuclease. We have generated a stereochemically robust model of the complex, where the guide DNA-mRNA duplex is positioned within a basic channel spanning the bilobal interface, such that the 5' phosphate of the guide strand can be anchored in a basic pocket, and the mRNA can be positioned for site-specific cleavage by RNase H-type divalent cation-coordinated catalytic Asp residues of the PIWI domain. Domain swap experiments involving chimeras of human Ago (hAgo1) and cleavage-competent hAgo2 reinforce the role of the PIWI domain in "slicer" activity. We propose a four-step Ago-mediated catalytic cleavage cycle model, which provides distinct perspectives into the mechanism of guide strand-mediated mRNA cleavage within the RISC.
-{{STRUCTURE_2ads|  PDB=2ads  |  SCENE=  }}
+Crystal structure of A. aeolicus argonaute, a site-specific DNA-guided endoribonuclease, provides insights into RISC-mediated mRNA cleavage.,Yuan YR, Pei Y, Ma JB, Kuryavyi V, Zhadina M, Meister G, Chen HY, Dauter Z, Tuschl T, Patel DJ Mol Cell. 2005 Aug 5;19(3):405-19. PMID:16061186<ref>PMID:16061186</ref>
-===THEORETICAL MODEL OF DNA-MEDIATED RNA CLEAVAGE BY A.AEOLICUS ARGONAUTE PROTEIN.===
+From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
+</div>
-{{ABSTRACT_PUBMED_16061186}}
+<div class="pdbe-citations 2ads" style="background-color:#fffaf0;"></div>
+== References ==
-==Reference==
+<references/>
-<ref group="xtra">PMID:016061186</ref><references group="xtra"/>
+__TOC__
+</StructureSection>
+[[Category: Theoretical Model]]
+[[Category: Large Structures]]
 [[Category: Cheng, H Y]]
 [[Category: Dauter, Z]]