7f4u: Difference between revisions
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The | ==Cryo-EM structure of TELO2-TTI1-TTI2 complex== | ||
<StructureSection load='7f4u' size='340' side='right'caption='[[7f4u]], [[Resolution|resolution]] 4.20Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[7f4u]] is a 3 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=7F4U OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7F4U FirstGlance]. <br> | |||
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Electron Microscopy, [[Resolution|Resolution]] 4.2Å</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=7f4u FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7f4u OCA], [https://pdbe.org/7f4u PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7f4u RCSB], [https://www.ebi.ac.uk/pdbsum/7f4u PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7f4u ProSAT]</span></td></tr> | |||
</table> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Phosphatidylinositol 3-kinase-related protein kinases (PIKKs) play critical roles in various metabolic pathways related to cell proliferation and survival. The TELO2-TTI1-TTI2 (TTT) complex has been proposed to recognize newly synthesized PIKKs and to deliver them to the R2TP complex (RUVBL1-RUVBL2-RPAP3-PIH1D1) and the heat shock protein 90 chaperone, thereby supporting their folding and assembly. Here, we determined the cryo-EM structure of the TTT complex at an average resolution of 4.2 A. We describe the full-length structures of TTI1 and TELO2, and a partial structure of TTI2. All three proteins form elongated helical repeat structures. TTI1 provides a platform on which TELO2 and TTI2 bind to its central region and C-terminal end, respectively. The TELO2 C-terminal domain (CTD) is required for the interaction with TTI1 and recruitment of Ataxia-telangiectasia mutated (ATM). The N- and C-terminal segments of TTI1 recognize the FRAP-ATM-TRRAP (FAT) domain and the N-terminal HEAT repeats of ATM, respectively. The TELO2 CTD and TTI1 N- and C-terminal segments are required for cell survival in response to ionizing radiation. | |||
Structure of the Human TELO2-TTI1-TTI2 Complex.,Kim Y, Park J, Joo SY, Kim BG, Jo A, Lee H, Cho Y J Mol Biol. 2022 Jan 30;434(2):167370. doi: 10.1016/j.jmb.2021.167370. Epub 2021 , Nov 24. PMID:34838521<ref>PMID:34838521</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
[[Category: | </div> | ||
<div class="pdbe-citations 7f4u" style="background-color:#fffaf0;"></div> | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Homo sapiens]] | |||
[[Category: Large Structures]] | |||
[[Category: Cho Y]] | |||
[[Category: Kim Y]] |