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1pic

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(New page: 200px<br /> <applet load="1pic" size="450" color="white" frame="true" align="right" spinBox="true" caption="1pic" /> '''PHOSPHATIDYLINOSITOL 3-KINASE, P85-ALPHA SU...)
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[[Image:1pic.gif|left|200px]]<br />
 
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<applet load="1pic" size="450" color="white" frame="true" align="right" spinBox="true"
 
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caption="1pic" />
 
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'''PHOSPHATIDYLINOSITOL 3-KINASE, P85-ALPHA SUBUNIT: C-TERMINAL SH2 DOMAIN COMPLEXED WITH A TYR751 PHOSPHOPEPTIDE FROM THE PDGF RECEPTOR, NMR, MINIMIZED MEAN STRUCTURE'''<br />
 
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==Overview==
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==PHOSPHATIDYLINOSITOL 3-KINASE, P85-ALPHA SUBUNIT: C-TERMINAL SH2 DOMAIN COMPLEXED WITH A TYR751 PHOSPHOPEPTIDE FROM THE PDGF RECEPTOR, NMR, MINIMIZED MEAN STRUCTURE==
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We have determined the solution structure of the C-terminal SH2 domain of, the p85 alpha subunit of human phosphatidylinositol (PI) 3-kinase (EC, 2.7.1.137) in complex with a phosphorylated tyrosine pentapeptide sequence, from the platelet-derived growth factor receptor using heteronuclear, nuclear magnetic resonance spectroscopy. Overall, the structure is similar, to other SH2 domain complexes, but displays different detail interactions, within the phosphotyrosine binding site and in the recognition site for, the +3 methionine residue of the peptide, the side chain of which inserts, into a particularly deep and narrow pocket which is displaced relative to, that of other SH2 domains. The contacts made within this +3 pocket provide, the structural basis for the strong selection for methionine at this, position which characterizes the SH2 domains of PI3-kinase. Comparison, with spectral and structural features of the uncomplexed domain shows that, the long BG loop becomes less mobile in the presence of the bound peptide., In contrast, extreme resonance broadening encountered for most residues in, the beta D', beta E and beta F strands and associated connecting loops of, the domain in the absence of peptide persists in the complex, implying, conformational averaging in this part of the molecule on a, microsecond-to-millisecond time scale.
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<StructureSection load='1pic' size='340' side='right'caption='[[1pic]]' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1pic]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1PIC OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1PIC FirstGlance]. <br>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ACE:ACETYL+GROUP'>ACE</scene>, <scene name='pdbligand=PTR:O-PHOSPHOTYROSINE'>PTR</scene></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1pic FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1pic OCA], [https://pdbe.org/1pic PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1pic RCSB], [https://www.ebi.ac.uk/pdbsum/1pic PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1pic ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/P85A_HUMAN P85A_HUMAN] Binds to activated (phosphorylated) protein-Tyr kinases, through its SH2 domain, and acts as an adapter, mediating the association of the p110 catalytic unit to the plasma membrane. Necessary for the insulin-stimulated increase in glucose uptake and glycogen synthesis in insulin-sensitive tissues. Plays an important role in signaling in response to FGFR1, FGFR2, FGFR3, FGFR4, KITLG/SCF, KIT, PDGFRA and PDGFRB. Likewise, plays a role in ITGB2 signaling.<ref>PMID:7518429</ref> <ref>PMID:17626883</ref> <ref>PMID:19805105</ref>
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/pi/1pic_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1pic ConSurf].
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<div style="clear:both"></div>
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==About this Structure==
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==See Also==
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1PIC is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] with ACE as [http://en.wikipedia.org/wiki/ligand ligand]. Active as [http://en.wikipedia.org/wiki/Phosphatidylinositol_3-kinase Phosphatidylinositol 3-kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.1.137 2.7.1.137] Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1PIC OCA].
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*[[Phosphoinositide 3-kinase 3D structures|Phosphoinositide 3-kinase 3D structures]]
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== References ==
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==Reference==
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<references/>
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Structure of a specific peptide complex of the carboxy-terminal SH2 domain from the p85 alpha subunit of phosphatidylinositol 3-kinase., Breeze AL, Kara BV, Barratt DG, Anderson M, Smith JC, Luke RW, Best JR, Cartlidge SA, EMBO J. 1996 Jul 15;15(14):3579-89. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=8670861 8670861]
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__TOC__
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</StructureSection>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
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[[Category: Phosphatidylinositol 3-kinase]]
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[[Category: Large Structures]]
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[[Category: Single protein]]
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[[Category: Anderson M]]
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[[Category: Anderson, M.]]
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[[Category: Barratt DG]]
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[[Category: Barratt, D.G.]]
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[[Category: Best JR]]
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[[Category: Best, J.R.]]
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[[Category: Breeze AL]]
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[[Category: Breeze, A.L.]]
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[[Category: Cartlidge SA]]
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[[Category: Cartlidge, S.A.]]
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[[Category: Kara BV]]
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[[Category: Kara, B.V.]]
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[[Category: Luke RW]]
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[[Category: Luke, R.W.]]
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[[Category: Smith JC]]
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[[Category: Smith, J.C.]]
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[[Category: ACE]]
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[[Category: complex (phosphotransferase/receptor)]]
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[[Category: phosphoinositide 3-kinase]]
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[[Category: phosphotransferase]]
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[[Category: sh2 domain]]
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[[Category: signal transduction]]
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''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Mon Nov 12 18:43:30 2007''
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Current revision

PHOSPHATIDYLINOSITOL 3-KINASE, P85-ALPHA SUBUNIT: C-TERMINAL SH2 DOMAIN COMPLEXED WITH A TYR751 PHOSPHOPEPTIDE FROM THE PDGF RECEPTOR, NMR, MINIMIZED MEAN STRUCTURE

PDB ID 1pic

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