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6gy0

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Revision as of 08:15, 3 April 2019

mPI3Kd IN COMPLEX WITH AZ3

Structural highlights

6gy0 is a 1 chain structure with sequence from Lk3 transgenic mice. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Gene:	Pik3cd (LK3 transgenic mice)
Activity:	Phosphatidylinositol-4,5-bisphosphate 3-kinase, with EC number 2.7.1.153
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[PK3CD_MOUSE] Phosphoinositide-3-kinase (PI3K) that phosphorylates PftdIns(4,5)P2 (Phosphatidylinositol 4,5-bisphosphate) to generate phosphatidylinositol 3,4,5-trisphosphate (PIP3). PIP3 plays a key role by recruiting PH domain-containing proteins to the membrane, including AKT1 and PDPK1, activating signaling cascades involved in cell growth, survival, proliferation, motility and morphology. Mediates immune responses. Plays a role in B-cell development, proliferation, migration, and function. Required for B-cell receptor (BCR) signaling. Mediates B-cell proliferation response to anti-IgM, anti-CD40 and IL4 stimulation. Promotes cytokine production in response to TLR4 and TLR9. Required for antibody class switch mediated by TLR9. Involved in the antigen presentation function of B-cells. Involved in B-cell chemotaxis in response to CXCL13 and sphingosine 1-phosphate (S1P). Required for proliferation, signaling and cytokine production of naive, effector and memory T-cells. Required for T-cell receptor (TCR) signaling. Mediates TCR signaling events at the immune synapse. Activation by TCR leads to antigen-dependent memory T-cell migration and retention to antigenic tissues. Together with PIK3CG participates in T-cell development. Contributes to T-helper cell expansion and differentiation. Required for T-cell migration mediated by homing receptors SELL/CD62L, CCR7 and S1PR1 and antigen dependent recruitment of T-cells. Together with PIK3CG is involved in natural killer (NK) cell development and migration towards the sites of inflammation. Participates in NK cell receptor activation. Have a role in NK cell maturation and cytokine production. Together with PIK3CG is involved in neutrophil chemotaxis and extravasation. Together with PIK3CG participates in neutrophil respiratory burst. Have important roles in mast-cell development and mast cell mediated allergic response. Involved in stem cell factor (SCF)-mediated proliferation, adhesion and migration. Required for allergen-IgE-induced degranulation and cytokine release. The lipid kinase activity is required for its biological function.^[1] ^[2] ^[3] ^[4] ^[5] ^[6] ^[7]

Publication Abstract from PubMed

We have discovered a class of PI3Kgamma inhibitors exhibiting over 1,000-fold selectivity over PI3Kalpha and PI3Kbeta. On the basis of X-ray crystallography, hydrogen-deuterium exchange-mass spectrometry and surface plasmon resonance experiments we propose that the cyclopropylethyl moiety displaces the DFG motif of the enzyme away from the adenosine tri-phosphate binding site, inducing a large conformational change in both the kinase- and helical domains of PI3Kgamma. Site directed mutagenesis explained how the conformational changes occur. Our results suggest that these cyclopropylethyl substituted compounds selectively inhibit the active state of PI3Kgamma, which is unique to these compounds and to the PI3Kgamma isoform, explaining their excellent potency and unmatched isoform selectivity that were confirmed in cellular systems. This is the first example of a Class I PI3K inhibitor achieving its selectivity by affecting the DFG motif in a manner that bears similarity to DFG in/out for type II protein kinase inhibitors.

A class of highly selective inhibitors bind to an active state of PI3Kgamma.,Gangadhara G, Dahl G, Bohnacker T, Rae R, Gunnarsson J, Blaho S, Oster L, Lindmark H, Karabelas K, Pemberton N, Tyrchan C, Mogemark M, Wymann MP, Williams RL, Perry MWD, Papavoine T, Petersen J Nat Chem Biol. 2019 Feb 4. pii: 10.1038/s41589-018-0215-0. doi:, 10.1038/s41589-018-0215-0. PMID:30718815^[8]

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

References

↑ Okkenhaug K, Bilancio A, Farjot G, Priddle H, Sancho S, Peskett E, Pearce W, Meek SE, Salpekar A, Waterfield MD, Smith AJ, Vanhaesebroeck B. Impaired B and T cell antigen receptor signaling in p110delta PI 3-kinase mutant mice. Science. 2002 Aug 9;297(5583):1031-4. Epub 2002 Jul 18. PMID:12130661 doi:http://dx.doi.org/10.1126/science.1073560
↑ Clayton E, Bardi G, Bell SE, Chantry D, Downes CP, Gray A, Humphries LA, Rawlings D, Reynolds H, Vigorito E, Turner M. A crucial role for the p110delta subunit of phosphatidylinositol 3-kinase in B cell development and activation. J Exp Med. 2002 Sep 16;196(6):753-63. PMID:12235209
↑ Ali K, Bilancio A, Thomas M, Pearce W, Gilfillan AM, Tkaczyk C, Kuehn N, Gray A, Giddings J, Peskett E, Fox R, Bruce I, Walker C, Sawyer C, Okkenhaug K, Finan P, Vanhaesebroeck B. Essential role for the p110delta phosphoinositide 3-kinase in the allergic response. Nature. 2004 Oct 21;431(7011):1007-11. PMID:15496927 doi:http://dx.doi.org/10.1038/nature02991
↑ Webb LM, Vigorito E, Wymann MP, Hirsch E, Turner M. Cutting edge: T cell development requires the combined activities of the p110gamma and p110delta catalytic isoforms of phosphatidylinositol 3-kinase. J Immunol. 2005 Sep 1;175(5):2783-7. PMID:16116162
↑ Jarmin SJ, David R, Ma L, Chai JG, Dewchand H, Takesono A, Ridley AJ, Okkenhaug K, Marelli-Berg FM. T cell receptor-induced phosphoinositide-3-kinase p110delta activity is required for T cell localization to antigenic tissue in mice. J Clin Invest. 2008 Mar;118(3):1154-64. doi: 10.1172/JCI33267. PMID:18259608 doi:http://dx.doi.org/10.1172/JCI33267
↑ Guo H, Samarakoon A, Vanhaesebroeck B, Malarkannan S. The p110 delta of PI3K plays a critical role in NK cell terminal maturation and cytokine/chemokine generation. J Exp Med. 2008 Sep 29;205(10):2419-35. doi: 10.1084/jem.20072327. Epub 2008 Sep , 22. PMID:18809712 doi:http://dx.doi.org/10.1084/jem.20072327
↑ Saudemont A, Garcon F, Yadi H, Roche-Molina M, Kim N, Segonds-Pichon A, Martin-Fontecha A, Okkenhaug K, Colucci F. p110gamma and p110delta isoforms of phosphoinositide 3-kinase differentially regulate natural killer cell migration in health and disease. Proc Natl Acad Sci U S A. 2009 Apr 7;106(14):5795-800. doi:, 10.1073/pnas.0808594106. Epub 2009 Mar 18. PMID:19297623 doi:http://dx.doi.org/10.1073/pnas.0808594106
↑ Gangadhara G, Dahl G, Bohnacker T, Rae R, Gunnarsson J, Blaho S, Oster L, Lindmark H, Karabelas K, Pemberton N, Tyrchan C, Mogemark M, Wymann MP, Williams RL, Perry MWD, Papavoine T, Petersen J. A class of highly selective inhibitors bind to an active state of PI3Kgamma. Nat Chem Biol. 2019 Feb 4. pii: 10.1038/s41589-018-0215-0. doi:, 10.1038/s41589-018-0215-0. PMID:30718815 doi:http://dx.doi.org/10.1038/s41589-018-0215-0

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/6gy0"

@@ Line 1: / Line 1: @@
 ==mPI3Kd IN COMPLEX WITH AZ3==
-<StructureSection load='6gy0' size='340' side='right' caption='[[6gy0]], [[Resolution|resolution]] 2.55&Aring;' scene=''>
+<StructureSection load='6gy0' size='340' side='right'caption='[[6gy0]], [[Resolution|resolution]] 2.55&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[6gy0]] is a 1 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6GY0 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6GY0 FirstGlance]. <br>
+<table><tr><td colspan='2'>[[6gy0]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Lk3_transgenic_mice Lk3 transgenic mice]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6GY0 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6GY0 FirstGlance]. <br>
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=FGE:~{N}-[4-methyl-5-(1-oxidanylidene-7-sulfamoyl-isoindol-5-yl)-1,3-thiazol-2-yl]ethanamide'>FGE</scene></td></tr>
+<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">Pik3cd ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10090 LK3 transgenic mice])</td></tr>
 <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Phosphatidylinositol-4,5-bisphosphate_3-kinase Phosphatidylinositol-4,5-bisphosphate 3-kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.1.153 2.7.1.153] </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=6gy0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6gy0 OCA], [http://pdbe.org/6gy0 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6gy0 RCSB], [http://www.ebi.ac.uk/pdbsum/6gy0 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6gy0 ProSAT]</span></td></tr>
@@ Line 23: / Line 24: @@
 __TOC__
 </StructureSection>
+[[Category: Large Structures]]
+[[Category: Lk3 transgenic mice]]
 [[Category: Phosphatidylinositol-4,5-bisphosphate 3-kinase]]
 [[Category: Petersen, J]]

6gy0

From Proteopedia

Revision as of 08:15, 3 April 2019

mPI3Kd IN COMPLEX WITH AZ3

Structural highlights

Function

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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