View source for 4psi


==PIH1D1/phospho-Tel2 complex==
<StructureSection load='4psi' size='340' side='right'caption='[[4psi]], [[Resolution|resolution]] 2.45&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[4psi]] is a 4 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=4PSI OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4PSI 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]] 2.45&#8491;</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>, <scene name='pdbligand=SEP:PHOSPHOSERINE'>SEP</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=4psi FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4psi OCA], [https://pdbe.org/4psi PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4psi RCSB], [https://www.ebi.ac.uk/pdbsum/4psi PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4psi ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/PIHD1_HUMAN PIHD1_HUMAN] 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The R2TP cochaperone complex plays a critical role in the assembly of multisubunit machines, including small nucleolar ribonucleoproteins (snoRNPs), RNA polymerase II, and the mTORC1 and SMG1 kinase complexes, but the molecular basis of substrate recognition remains unclear. Here, we describe a phosphopeptide binding domain (PIH-N) in the PIH1D1 subunit of the R2TP complex that preferentially binds to highly acidic phosphorylated proteins. A cocrystal structure of a PIH-N domain/TEL2 phosphopeptide complex reveals a highly specific phosphopeptide recognition mechanism in which Lys57 and 64 in PIH1D1, along with a conserved DpSDD phosphopeptide motif within TEL2, are essential and sufficient for binding. Proteomic analysis of PIH1D1 interactors identified R2TP complex substrates that are recruited by the PIH-N domain in a sequence-specific and phosphorylation-dependent manner suggestive of a common mechanism of substrate recognition. We propose that protein complexes assembled by the R2TP complex are defined by phosphorylation of a specific motif and recognition by the PIH1D1 subunit.

Phosphorylation-Dependent PIH1D1 Interactions Define Substrate Specificity of the R2TP Cochaperone Complex.,Horejsi Z, Stach L, Flower TG, Joshi D, Flynn H, Skehel JM, O'Reilly NJ, Ogrodowicz RW, Smerdon SJ, Boulton SJ Cell Rep. 2014 Apr 10;7(1):19-26. doi: 10.1016/j.celrep.2014.03.013. Epub 2014, Mar 20. PMID:24656813<ref>PMID:24656813</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 4psi" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Boulton SJ]]
[[Category: Flower TG]]
[[Category: Horejsi Z]]
[[Category: Smerdon SJ]]
[[Category: Stach L]]