5ho8: Difference between revisions
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The entry | ==DISCOVERY OF NOVEL 7-AZAINDOLES AS PDK1 INHIBITORS== | ||
<StructureSection load='5ho8' size='340' side='right'caption='[[5ho8]], [[Resolution|resolution]] 2.70Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[5ho8]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5HO8 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5HO8 FirstGlance]. <br> | |||
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.7Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=63E:4-BUTYL-6-(1H-PYRROLO[2,3-B]PYRIDIN-3-YL)PYRIMIDIN-2-AMINE'>63E</scene>, <scene name='pdbligand=SEP:PHOSPHOSERINE'>SEP</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></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=5ho8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5ho8 OCA], [https://pdbe.org/5ho8 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5ho8 RCSB], [https://www.ebi.ac.uk/pdbsum/5ho8 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5ho8 ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/PDPK1_HUMAN PDPK1_HUMAN] Serine/threonine kinase which acts as a master kinase, phosphorylating and activating a subgroup of the AGC family of protein kinases. Its targets include: protein kinase B (PKB/AKT1, PKB/AKT2, PKB/AKT3), p70 ribosomal protein S6 kinase (RPS6KB1), p90 ribosomal protein S6 kinase (RPS6KA1, RPS6KA2 and RPS6KA3), cyclic AMP-dependent protein kinase (PRKACA), protein kinase C (PRKCD and PRKCZ), serum and glucocorticoid-inducible kinase (SGK1, SGK2 and SGK3), p21-activated kinase-1 (PAK1), protein kinase PKN (PKN1 and PKN2). Plays a central role in the transduction of signals from insulin by providing the activating phosphorylation to PKB/AKT1, thus propagating the signal to downstream targets controlling cell proliferation and survival, as well as glucose and amino acid uptake and storage. Negatively regulates the TGF-beta-induced signaling by: modulating the association of SMAD3 and SMAD7 with TGF-beta receptor, phosphorylating SMAD2, SMAD3, SMAD4 and SMAD7, preventing the nuclear translocation of SMAD3 and SMAD4 and the translocation of SMAD7 from the nucleus to the cytoplasm in response to TGF-beta. Activates PPARG transcriptional activity and promotes adipocyte differentiation. Activates the NF-kappa-B pathway via phosphorylation of IKKB. The tyrosine phosphorylated form is crucial for the regulation of focal adhesions by angiotensin II. Controls proliferation, survival, and growth of developing pancreatic cells. Participates in the regulation of Ca(2+) entry and Ca(2+)-activated K(+) channels of mast cells. Essential for the motility of vascular endothelial cells (ECs) and is involved in the regulation of their chemotaxis. Plays a critical role in cardiac homeostasis by serving as a dual effector for cell survival and beta-adrenergic response. Plays an important role during thymocyte development by regulating the expression of key nutrient receptors on the surface of pre-T cells and mediating Notch-induced cell growth and proliferative responses. Provides negative feedback inhibition to toll-like receptor-mediated NF-kappa-B activation in macrophages. Isoform 3 is catalytically inactive.<ref>PMID:9094314</ref> <ref>PMID:9768361</ref> <ref>PMID:9707564</ref> <ref>PMID:9445476</ref> <ref>PMID:10480933</ref> <ref>PMID:10995762</ref> <ref>PMID:12167717</ref> <ref>PMID:14585963</ref> <ref>PMID:14604990</ref> <ref>PMID:10226025</ref> <ref>PMID:16207722</ref> <ref>PMID:16251192</ref> <ref>PMID:17327236</ref> <ref>PMID:17371830</ref> <ref>PMID:18835241</ref> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
A combined screening strategy using HTS together with focused kinase library and virtual screening led to the identification of diverse chemical series as PDK1 inhibitors. We focused our medicinal chemistry efforts on 7-azaindoles with low micromolar IC50s (e.g., 16: IC50=1.1muM) in the biochemical PDK1 assay. Our structure-guided optimization efforts considered also PDK1 X-ray structures with weaker binding fragments and resulted in 7-azaindoles with significantly improved biochemical PDK1 potency in the two-digit nanomolar range. However, the most potent analogues only showed moderate activities in a cellular mechanistic assay (42: IC50=2.3muM) together with either low microsomal stability or low permeability. The described structure-activity relationship together with PDK1 X-ray structures and early ADME data provided the basis for our subsequent hit-to-lead program. | |||
Discovery of novel 7-azaindoles as PDK1 inhibitors.,Wucherer-Plietker M, Merkul E, Muller TJ, Esdar C, Knochel T, Heinrich T, Buchstaller HP, Greiner H, Dorsch D, Finsinger D, Calderini M, Bruge D, Gradler U Bioorg Med Chem Lett. 2016 Jul 1;26(13):3073-80. doi: 10.1016/j.bmcl.2016.05.005., Epub 2016 May 4. PMID:27217002<ref>PMID:27217002</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
[[Category: | </div> | ||
[[Category: | <div class="pdbe-citations 5ho8" style="background-color:#fffaf0;"></div> | ||
[[Category: | |||
[[Category: | ==See Also== | ||
[[Category: | *[[Pdk1 3D structures|Pdk1 3D structures]] | ||
[[Category: | == References == | ||
[[Category: | <references/> | ||
[[Category: Greiner | __TOC__ | ||
[[Category: | </StructureSection> | ||
[[Category: | [[Category: Homo sapiens]] | ||
[[Category: | [[Category: Large Structures]] | ||
[[Category: | [[Category: Bruge D]] | ||
[[Category: | [[Category: Buchstaller HP]] | ||
[[Category: Calderini M]] | |||
[[Category: Dorsch D]] | |||
[[Category: Esdar C]] | |||
[[Category: Graedler U]] | |||
[[Category: Greiner H]] | |||
[[Category: Heinrich T]] | |||
[[Category: Hillertz P]] | |||
[[Category: Knoechel T]] | |||
[[Category: Mueller TJJ]] | |||
[[Category: Wucherer-Plietker M]] |