View source for 5em9


==Crystal structure of the SNX27 PDZ domain bound to the phosphorylated C-terminal 5HT4(a)R PDZ binding motif==
<StructureSection load='5em9' size='340' side='right'caption='[[5em9]], [[Resolution|resolution]] 1.60&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[5em9]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [https://en.wikipedia.org/wiki/Rattus_norvegicus Rattus norvegicus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5EM9 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5EM9 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]] 1.6&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><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=5em9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5em9 OCA], [https://pdbe.org/5em9 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5em9 RCSB], [https://www.ebi.ac.uk/pdbsum/5em9 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5em9 ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/SNX27_RAT SNX27_RAT] Involved in endocytic trafficking (By similarity). In T lymphocytes, participates in endocytic recycling pathway. Recruits PSCDBP and HT4R to early endosomes (By similarity).
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Recycling of internalized receptors from endosomal compartments is essential for the receptors' cell-surface homeostasis. Sorting nexin 27 (SNX27) cooperates with the retromer complex in the recycling of proteins containing type I PSD95-Dlg-ZO1 (PDZ)-binding motifs. Here we define specific acidic amino acid sequences upstream of the PDZ-binding motif required for high-affinity engagement of the human SNX27 PDZ domain. However, a subset of SNX27 ligands, such as the beta2 adrenergic receptor and N-methyl-D-aspartate (NMDA) receptor, lack these sequence determinants. Instead, we identified conserved sites of phosphorylation that substitute for acidic residues and dramatically enhance SNX27 interactions. This newly identified mechanism suggests a likely regulatory switch for PDZ interaction and protein transport by the SNX27-retromer complex. Defining this SNX27 binding code allowed us to classify more than 400 potential SNX27 ligands with broad functional implications in signal transduction, neuronal plasticity and metabolite transport.

A molecular code for endosomal recycling of phosphorylated cargos by the SNX27-retromer complex.,Clairfeuille T, Mas C, Chan AS, Yang Z, Tello-Lafoz M, Chandra M, Widagdo J, Kerr MC, Paul B, Merida I, Teasdale RD, Pavlos NJ, Anggono V, Collins BM Nat Struct Mol Biol. 2016 Sep 5. doi: 10.1038/nsmb.3290. PMID:27595347<ref>PMID:27595347</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 5em9" style="background-color:#fffaf0;"></div>

==See Also==
*[[Sorting nexin 3D structures|Sorting nexin 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Rattus norvegicus]]
[[Category: Clairfeuille T]]
[[Category: Collins BM]]