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2pnb

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Revision as of 07:10, 29 November 2017

STRUCTURE OF AN SH2 DOMAIN OF THE P85 ALPHA SUBUNIT OF PHOSPHATIDYLINOSITOL-3-OH KINASE

Structural highlights

2pnb is a 1 chain structure with sequence from Bovin. Full experimental information is available from OCA. For a guided tour on the structure components use FirstGlance.
Related:	2pna
Activity:	Phosphatidylinositol 3-kinase, with EC number 2.7.1.137
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[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

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

Receptor protein-tyrosine kinases, through phosphorylation of specific tyrosine residues, generate high-affinity binding sites which direct assembly of multienzyme signalling complexes. Many of these signalling proteins, including phospholipase C gamma, GTPase-activating protein and phosphatidylinositol-3-OH kinase, contain src-homology 2 (SH2) domains, which bind with high affinity and specificity to tyrosine-phosphorylated sequences. The critical role played by SH2 domains in signalling has been highlighted by recent studies showing that mutation of specific phosphorylation sites on the platelet-derived growth factor receptor impair its association with phosphatidylinositol-3-OH kinase, preventing growth factor-induced mitogenesis. Here we report the solution structure of an isolated SH2 domain from the 85K regulatory subunit of phosphatidylinositol-3-OH kinase, determined using multidimensional nuclear magnetic resonance spectroscopy. The structure is characterized by a central region of beta-sheet flanked by two alpha-helices, with a highly flexible loop close to functionally important residues previously identified by site-directed mutagenesis.

Structure of an SH2 domain of the p85 alpha subunit of phosphatidylinositol-3-OH kinase.,Booker GW, Breeze AL, Downing AK, Panayotou G, Gout I, Waterfield MD, Campbell ID Nature. 1992 Aug 20;358(6388):684-7. PMID:1323062^[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Booker GW, Breeze AL, Downing AK, Panayotou G, Gout I, Waterfield MD, Campbell ID. Structure of an SH2 domain of the p85 alpha subunit of phosphatidylinositol-3-OH kinase. Nature. 1992 Aug 20;358(6388):684-7. PMID:1323062 doi:http://dx.doi.org/10.1038/358684a0

1 Structural highlights
2 Function
3 Evolutionary Conservation
4 Publication Abstract from PubMed
5 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/2pnb"

@@ Line 1: / Line 1: @@
 ==STRUCTURE OF AN SH2 DOMAIN OF THE P85 ALPHA SUBUNIT OF PHOSPHATIDYLINOSITOL-3-OH KINASE==
 <StructureSection load='2pnb' size='340' side='right' caption='[[2pnb]], [[NMR_Ensembles_of_Models | 1 NMR models]]' scene=''>
@@ Line 5: / Line 6: @@
 </td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2pna|2pna]]</td></tr>
 <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[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] </span></td></tr>
-<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2pnb FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2pnb OCA], [http://pdbe.org/2pnb PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2pnb RCSB], [http://www.ebi.ac.uk/pdbsum/2pnb PDBsum]</span></td></tr>
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2pnb FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2pnb OCA], [http://pdbe.org/2pnb PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2pnb RCSB], [http://www.ebi.ac.uk/pdbsum/2pnb PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2pnb ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 28: / Line 29: @@
 </div>
 <div class="pdbe-citations 2pnb" style="background-color:#fffaf0;"></div>
-==See Also==
-*[[Phosphoinositide 3-Kinases|Phosphoinositide 3-Kinases]]
 == References ==
 <references/>

2pnb

From Proteopedia

Revision as of 07:10, 29 November 2017

STRUCTURE OF AN SH2 DOMAIN OF THE P85 ALPHA SUBUNIT OF PHOSPHATIDYLINOSITOL-3-OH KINASE

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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