6d0l: Difference between revisions

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-'''Unreleased structure'''
-The entry 6d0l is ON HOLD  until Paper Publication
+==Structure of human TIRR==
+<StructureSection load='6d0l' size='340' side='right'caption='[[6d0l]], [[Resolution|resolution]] 1.97&Aring;' scene=''>
+== Structural highlights ==
+<table><tr><td colspan='2'>[[6d0l]] 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=6D0L OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6D0L 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]] 1.97&#8491;</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=6d0l FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6d0l OCA], [https://pdbe.org/6d0l PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6d0l RCSB], [https://www.ebi.ac.uk/pdbsum/6d0l PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6d0l ProSAT]</span></td></tr>
+</table>
+== Function ==
+[https://www.uniprot.org/uniprot/TIRR_HUMAN TIRR_HUMAN] Key regulator of TP53BP1 required to stabilize TP53BP1 and regulate its recruitment to chromatin (PubMed:28241136). In absence of DNA damage, interacts with the tandem Tudor-like domain of TP53BP1, masking the region that binds histone H4 dimethylated at 'Lys-20' (H4K20me2), thereby preventing TP53BP1 recruitment to chromatin and maintaining TP53BP1 localization to the nucleus (PubMed:28241136). Following DNA damage, ATM-induced phosphorylation of TP53BP1 and subsequent recruitment of RIF1 leads to dissociate NUDT16L1/TIRR from TP53BP1, unmasking the tandem Tudor-like domain and allowing recruitment of TP53BP1 to DNA double strand breaks (DSBs) (PubMed:28241136). Binds U8 snoRNA (PubMed:18820299).<ref>PMID:18820299</ref> <ref>PMID:28241136</ref>
+<div style="background-color:#fffaf0;">
+== Publication Abstract from PubMed ==
+Dynamic protein interaction networks such as DNA double-strand break (DSB) signaling are modulated by post-translational modifications. The DNA repair factor 53BP1 is a rare example of a protein whose post-translational modification-binding function can be switched on and off. 53BP1 is recruited to DSBs by recognizing histone lysine methylation within chromatin, an activity directly inhibited by the 53BP1-binding protein TIRR. X-ray crystal structures of TIRR and a designer protein bound to 53BP1 now reveal a unique regulatory mechanism in which an intricate binding area centered on an essential TIRR arginine residue blocks the methylated-chromatin-binding surface of 53BP1. A 53BP1 separation-of-function mutation that abolishes TIRR-mediated regulation in cells renders 53BP1 hyperactive in response to DSBs, highlighting the key inhibitory function of TIRR. This 53BP1 inhibition is relieved by TIRR-interacting RNA molecules, providing proof-of-principle of RNA-triggered 53BP1 recruitment to DSBs.
-Authors:
+Mechanism of 53BP1 activity regulation by RNA-binding TIRR and a designer protein.,Botuyan MV, Cui G, Drane P, Oliveira C, Detappe A, Brault ME, Parnandi N, Chaubey S, Thompson JR, Bragantini B, Zhao D, Chapman JR, Chowdhury D, Mer G Nat Struct Mol Biol. 2018 Jul 2. pii: 10.1038/s41594-018-0083-z. doi:, 10.1038/s41594-018-0083-z. PMID:29967538<ref>PMID:29967538</ref>
-Description:
+From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
-[[Category: Unreleased Structures]]
+</div>
+<div class="pdbe-citations 6d0l" style="background-color:#fffaf0;"></div>
+== References ==
+<references/>
+__TOC__
+</StructureSection>
+[[Category: Homo sapiens]]
+[[Category: Large Structures]]
+[[Category: Botuyan MV]]
+[[Category: Cui G]]
+[[Category: Mer G]]