3vpy: Difference between revisions
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==Crystal structure of Arabidopsis DDL FHA domain== | |||
<StructureSection load='3vpy' size='340' side='right'caption='[[3vpy]], [[Resolution|resolution]] 1.70Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[3vpy]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Arabidopsis_thaliana Arabidopsis thaliana]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3VPY OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3VPY 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]] 1.7Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><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=3vpy FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3vpy OCA], [https://pdbe.org/3vpy PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3vpy RCSB], [https://www.ebi.ac.uk/pdbsum/3vpy PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3vpy ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/DDL_ARATH DDL_ARATH] Involved in the microRNA (miRNA) and short interfering RNA (siRNA) biogenesis. May facilitate DCL1 to access or recognize primary miRNAs. Binds RNA non-specifically.<ref>PMID:18632581</ref> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Dawdle (DDL) is a microRNA processing protein essential for the development of Arabidopsis. DDL contains a putative nuclear localization signal at its amino terminus and forkhead-associated (FHA) domain at the carboxyl terminus. Here we report the crystal structure of FHA domain of Arabidopsis Dawdle, determined by multiple-wavelength anomalous dispersion method at 1.7 A resolution. DDL FHA structure displays a seven-stranded beta-sandwich architecture that contains a unique structural motif comprising two long anti-parallel strands. Strikingly, crystal packing of DDL FHA domain reveals that a glutamate residue from the symmetry-related DDL FHA domain, a structural mimic of the phospho-threonine, is specifically recognized by the structurally conserved phospho-threonine binding cleft. Consistent with the structural observations, co-immuno-precipitation experiments performed in N. benthamiana show that DDL FHA domain co-immuno-precipitates with DCL1 fragments containing the predicted pThr+3(Ile/Val/Leu/Asp) motif. Taken together, we count the recognition of the target residue by the canonical binding cleft of DDL FHA domain as the key molecular event to instate FHA domain-mediated protein-protein interaction in plant miRNA processing. | |||
Crystal Structure of Arabidopsis thaliana Dawdle Forkhead-Associated Domain reveals a conserved phospho-threonine recognition cleft for Dicer-like1 binding.,Machida S, Yuan AY Mol Plant. 2013 Jan 11. PMID:23313986<ref>PMID:23313986</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 3vpy" style="background-color:#fffaf0;"></div> | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Arabidopsis thaliana]] | |||
[[Category: Large Structures]] | |||
[[Category: Machida S]] | |||
[[Category: Yuan YA]] | |||
