7ocz
From Proteopedia
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==Crystal Structure of the PID-3 RRM domain== | ==Crystal Structure of the PID-3 RRM domain== | ||
| - | <StructureSection load='7ocz' size='340' side='right'caption='[[7ocz]]' scene=''> | + | <StructureSection load='7ocz' size='340' side='right'caption='[[7ocz]], [[Resolution|resolution]] 1.82Å' scene=''> |
== Structural highlights == | == Structural highlights == | ||
| - | <table><tr><td colspan='2'>Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7OCZ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7OCZ FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[7ocz]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Caeel Caeel]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7OCZ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7OCZ 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=7ocz FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7ocz OCA], [https://pdbe.org/7ocz PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7ocz RCSB], [https://www.ebi.ac.uk/pdbsum/7ocz PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7ocz ProSAT]</span></td></tr> | + | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene></td></tr> |
| + | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">pid-3, pics-1, Y23H5A.3 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=6239 CAEEL])</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=7ocz FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7ocz OCA], [https://pdbe.org/7ocz PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7ocz RCSB], [https://www.ebi.ac.uk/pdbsum/7ocz PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7ocz ProSAT]</span></td></tr> | ||
</table> | </table> | ||
| + | == Function == | ||
| + | [[https://www.uniprot.org/uniprot/PID3_CAEEL PID3_CAEEL]] Component of the pid-1 and tost-1 variants of the PETISCO complexes, which have roles in the biogenesis of a class of 21 nucleotide PIWI-interacting RNAs (piRNAs) that possess a uracil residue at the 5'-end (also called 21U-RNAs) and embryogenesis, respectively (PubMed:31147388, PubMed:31216475). Within the pid-1 variant of the PETISCO complex may stabilize 21U-RNA precursor molecules (PubMed:31147388). Promotes the biogenesis of 21U-RNAs (PubMed:31216475). Required for chromosome segregation and cell division in early embryos (PubMed:31216475).<ref>PMID:31147388</ref> <ref>PMID:31216475</ref> <ref>PMID:31216475</ref> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | Piwi-interacting RNAs (piRNAs) constitute a class of small RNAs that bind PIWI proteins and are essential to repress transposable elements in the animal germline, thereby promoting genome stability and maintaining fertility. C. elegans piRNAs (21U RNAs) are transcribed individually from minigenes as precursors that require 5' and 3' processing. This process depends on the PETISCO complex, consisting of four proteins: IFE-3, TOFU-6, PID-3, and ERH-2. We used biochemical and structural biology approaches to characterize the PETISCO architecture and its interaction with RNA, together with its effector proteins TOST-1 and PID-1. These two proteins define different PETISCO functions: PID-1 governs 21U processing, whereas TOST-1 links PETISCO to an unknown process essential for early embryogenesis. Here, we show that PETISCO forms an octameric assembly with each subunit present in two copies. Determination of structures of the TOFU-6/PID-3 and PID-3/ERH-2 subcomplexes, supported by in vivo studies of subunit interaction mutants, allows us to propose a model for the formation of the TOFU-6/PID-3/ERH-2 core complex and its functionality in germ cells and early embryos. Using NMR spectroscopy, we demonstrate that TOST-1 and PID-1 bind to a common surface on ERH-2, located opposite its PID-3 binding site, explaining how PETISCO can mediate different cellular roles. | ||
| + | |||
| + | Structural basis of PETISCO complex assembly during piRNA biogenesis in C. elegans.,Perez-Borrajero C, Podvalnaya N, Holleis K, Lichtenberger R, Karaulanov E, Simon B, Basquin J, Hennig J, Ketting RF, Falk S Genes Dev. 2021 Sep 1;35(17-18):1304-1323. doi: 10.1101/gad.348648.121. Epub 2021, Aug 19. PMID:34413138<ref>PMID:34413138</ref> | ||
| + | |||
| + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
| + | </div> | ||
| + | <div class="pdbe-citations 7ocz" style="background-color:#fffaf0;"></div> | ||
| + | == References == | ||
| + | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
| + | [[Category: Caeel]] | ||
[[Category: Large Structures]] | [[Category: Large Structures]] | ||
| - | [[Category: Basquin J]] | + | [[Category: Basquin, J]] |
| - | [[Category: Falk S]] | + | [[Category: Falk, S]] |
| - | [[Category: Ketting | + | [[Category: Ketting, R F]] |
| + | [[Category: Pirna biogenesis 21u rna rna recognition motif rna binding]] | ||
| + | [[Category: Rna binding protein]] | ||
Revision as of 05:56, 6 October 2021
Crystal Structure of the PID-3 RRM domain
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