1oo3: Difference between revisions

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[[Image:1oo3.png|left|200px]]


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==P395S mutant of the p85 regulatory subunit of the N-terminal src homology 2 domain of PI3-Kinase==
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<StructureSection load='1oo3' size='340' side='right'caption='[[1oo3]]' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1oo3]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Bos_taurus Bos taurus]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1OO3 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1OO3 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='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1oo3 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1oo3 OCA], [https://pdbe.org/1oo3 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1oo3 RCSB], [https://www.ebi.ac.uk/pdbsum/1oo3 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1oo3 ProSAT]</span></td></tr>
{{STRUCTURE_1oo3|  PDB=1oo3  |  SCENE=  }}
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== Function ==
[https://www.uniprot.org/uniprot/P85A_BOVIN P85A_BOVIN] 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 (By similarity).
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
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    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/oo/1oo3_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</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=1oo3 ConSurf].
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== Publication Abstract from PubMed ==
Understanding the specificity of Src homology 2 (SH2) domains is important because of their critical role in cell signaling. Previous genetic analysis has characterized mutants of the N-terminal src homology 2 (SH2) domain of the p85 subunit of phosphoinositide 3-kinase (PI3K). The P395S mutant exhibits a specificity for phosphopeptide binding different from that of the wild-type SH2. The P395S mutant has an increased affinity for the platelet-derived growth factor receptor (PDGFr) compared to polyomavirus middle T antigen (MT). Solution structures of the P395S mutant of the p85 N-SH2 alone and complexed to a PDGFr phosphopeptide were determined to explain the change in specificity. Chemical shift perturbations caused by different peptides were compared for mutant and wild-type structures. The results show that the single P395S mutation has broad effects on the structure. Furthermore, they provide a rationale for the observed changes in binding preference.


===P395S mutant of the p85 regulatory subunit of the N-terminal src homology 2 domain of PI3-Kinase===
Nuclear magnetic resonance structure of the P395S mutant of the N-SH2 domain of the p85 subunit of PI3 kinase: an SH2 domain with altered specificity.,Gunther UL, Weyrauch B, Zhang X, Schaffhausen B Biochemistry. 2003 Sep 30;42(38):11120-7. PMID:14503862<ref>PMID:14503862</ref>


From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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==See Also==
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*[[Phosphoinositide 3-kinase 3D structures|Phosphoinositide 3-kinase 3D structures]]
(as it appears on PubMed at http://www.pubmed.gov), where 14503862 is the PubMed ID number.
== References ==
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<references/>
{{ABSTRACT_PUBMED_14503862}}
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</StructureSection>
==About this Structure==
1OO3 is a 1 chain structure of sequence from [http://en.wikipedia.org/wiki/Bos_taurus Bos taurus]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1OO3 OCA].
 
==Reference==
<ref group="xtra">PMID:14503862</ref><references group="xtra"/>
[[Category: Bos taurus]]
[[Category: Bos taurus]]
[[Category: Guenther, U L.]]
[[Category: Large Structures]]
[[Category: Schaffhausen, B.]]
[[Category: Guenther UL]]
[[Category: Weyrauch, B.]]
[[Category: Schaffhausen B]]
[[Category: Src homology 2 domain p85 regulatory subunit mutant]]
[[Category: Weyrauch B]]
 
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