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| | ==Structure of the PICK PDZ domain in complex with the DAT C-terminal== | | ==Structure of the PICK PDZ domain in complex with the DAT C-terminal== |
| - | <StructureSection load='2lui' size='340' side='right'caption='[[2lui]], [[NMR_Ensembles_of_Models | 20 NMR models]]' scene=''> | + | <StructureSection load='2lui' size='340' side='right'caption='[[2lui]]' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[2lui]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Buffalo_rat Buffalo rat]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2LUI OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2LUI FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[2lui]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Rattus_norvegicus Rattus norvegicus]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2LUI OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2LUI FirstGlance]. <br> |
| - | </td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">Pick1, Prkcabp ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10116 Buffalo rat])</td></tr> | + | </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=2lui FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2lui OCA], [https://pdbe.org/2lui PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2lui RCSB], [https://www.ebi.ac.uk/pdbsum/2lui PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2lui ProSAT]</span></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=2lui FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2lui OCA], [https://pdbe.org/2lui PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2lui RCSB], [https://www.ebi.ac.uk/pdbsum/2lui PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2lui ProSAT]</span></td></tr> | + | |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[https://www.uniprot.org/uniprot/PICK1_RAT PICK1_RAT]] Probable adapter protein that bind to and organize the subcellular localization of a variety of membrane proteins containing some PDZ recognition sequence. Involved in the clustering of various receptors, possibly by acting at the receptor internalization level. Plays a role in synaptic plasticity by regulating the trafficking and internalization of AMPA receptors. May be regulated upon PRKCA activation. May regulate ASIC1/ASIC3 channel.<ref>PMID:16138078</ref>
| + | [https://www.uniprot.org/uniprot/PICK1_RAT PICK1_RAT] Probable adapter protein that bind to and organize the subcellular localization of a variety of membrane proteins containing some PDZ recognition sequence. Involved in the clustering of various receptors, possibly by acting at the receptor internalization level. Plays a role in synaptic plasticity by regulating the trafficking and internalization of AMPA receptors. May be regulated upon PRKCA activation. May regulate ASIC1/ASIC3 channel.<ref>PMID:16138078</ref> |
| | <div style="background-color:#fffaf0;"> | | <div style="background-color:#fffaf0;"> |
| | == Publication Abstract from PubMed == | | == Publication Abstract from PubMed == |
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| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Buffalo rat]] | |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Erlendsson, S]] | + | [[Category: Rattus norvegicus]] |
| - | [[Category: Gether, U]] | + | [[Category: Erlendsson S]] |
| - | [[Category: Heidarsson, P O]] | + | [[Category: Gether U]] |
| - | [[Category: Madsen, K L]] | + | [[Category: Heidarsson PO]] |
| - | [[Category: Poulsen, F M]] | + | [[Category: Madsen KL]] |
| - | [[Category: Rathje, M]] | + | [[Category: Poulsen FM]] |
| - | [[Category: Teilum, K]] | + | [[Category: Rathje M]] |
| - | [[Category: Dat c-terminal]]
| + | [[Category: Teilum K]] |
| - | [[Category: Pdz]]
| + | |
| - | [[Category: Pick1]]
| + | |
| - | [[Category: Protein binding]]
| + | |
| Structural highlights
Function
PICK1_RAT Probable adapter protein that bind to and organize the subcellular localization of a variety of membrane proteins containing some PDZ recognition sequence. Involved in the clustering of various receptors, possibly by acting at the receptor internalization level. Plays a role in synaptic plasticity by regulating the trafficking and internalization of AMPA receptors. May be regulated upon PRKCA activation. May regulate ASIC1/ASIC3 channel.[1]
Publication Abstract from PubMed
PDZ domain proteins control multiple cellular functions by governing assembly of protein complexes. It remains unknown why individual PDZ domains can bind the extreme C terminus of very diverse binding partners and maintain selectivity. By employing NMR spectroscopy, together with molecular modeling, mutational analysis, and fluorescent polarization binding experiments, we identify here three structural mechanisms explaining why the PDZ domain of PICK1 selectively binds >30 receptors, transporters, and kinases. Class II ligands, including the dopamine transporter, adopt a canonical binding mode with promiscuity obtained via differential packing in the binding groove. Class I ligands, such as protein kinase Calpha, depend on residues upstream from the canonical binding sequence that are likely to interact with flexible loop residues of the PDZ domain. Finally, we obtain evidence that the unconventional ligand ASIC1a has a dual binding mode involving a canonical insertion and a noncanonical internal insertion with the two C-terminal residues forming interactions outside the groove. Together with an evolutionary analysis, the data show how unconventional binding modes might evolve for a protein recognition domain to expand the repertoire of functionally important interactions.
Protein interacting with C-kinase 1 (PICK1) binding promiscuity relies on unconventional PSD-95/discs-large/ZO-1 homology (PDZ) binding modes for nonclass II PDZ ligands.,Erlendsson S, Rathje M, Heidarsson PO, Poulsen FM, Madsen KL, Teilum K, Gether U J Biol Chem. 2014 Sep 5;289(36):25327-40. doi: 10.1074/jbc.M114.548743. Epub 2014, Jul 13. PMID:25023278[2]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Hanley JG, Henley JM. PICK1 is a calcium-sensor for NMDA-induced AMPA receptor trafficking. EMBO J. 2005 Sep 21;24(18):3266-78. Epub 2005 Sep 1. PMID:16138078 doi:10.1038/sj.emboj.7600801
- ↑ Erlendsson S, Rathje M, Heidarsson PO, Poulsen FM, Madsen KL, Teilum K, Gether U. Protein interacting with C-kinase 1 (PICK1) binding promiscuity relies on unconventional PSD-95/discs-large/ZO-1 homology (PDZ) binding modes for nonclass II PDZ ligands. J Biol Chem. 2014 Sep 5;289(36):25327-40. doi: 10.1074/jbc.M114.548743. Epub 2014, Jul 13. PMID:25023278 doi:http://dx.doi.org/10.1074/jbc.M114.548743
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