PS210

• CAT Number: I017167
• CAS Number: 1221962-86-2
• Molecular Formula: C19H15F3O5
• Molecular Weight: 380.31
• Purity: ≥95%
• Synonyms: 2-[3-oxo-1-phenyl-3-[4-(trifluoromethyl)phenyl]propyl]propanedioic acid
• InChI: InChI=1S/C19H15F3O5/c20-19(21,22)13-8-6-12(7-9-13)15(23)10-14(11-4-2-1-3-5-11)16(17(24)25)18(26)27/h1-9,14,16H,10H2,(H,24,25)(H,26,27)
• InChIKey: MLJPLHGJBUWCBA-UHFFFAOYSA-N
• SMILES: C1=CC=C(C=C1)C(CC(=O)C2=CC=C(C=C2)C(F)(F)F)C(C(=O)O)C(=O)O

PS210 is a potent and selective PDK1 activator with a Kd of 3 μM and targets the PIF-binding pocket of PDK1. PS210 is inactive against other protein kinases, including PDK1 downstream signaling components such as S6K, PKB/Akt or GSK3. In cells, the prodrug of PS210 (PS423) acts as a substrate-selective inhibitor of PDK1, inhibiting the phosphorylation and activation of S6K[1][2].
When PS210 induces a stabilization of PDK1 to the temperature gradien, PS210 stabilized the residue Arg131, located opposite to the helix a-B at the other extreme of the helix a-C. Thus, the residues forming part of the phosphate-binding site appear to be a fixed point that allows for the relative movement of the helices in the process of PDK1 activation[1].

Reference

[1]. Busschots K, et al. Substrate-selective inhibition of protein kinase PDK1 by small compounds that bind to the PIF-pocket allosteric docking site. Chem Biol. 2012 Sep 21;19(9):1152-63.
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[2]. Rettenmaier TJ, et al. A small-molecule mimic of a peptide docking motif inhibits the protein kinase PDK1. Proc Natl Acad Sci U S A. 2014 Dec 30;111(52):18590-5.
 [Content Brief]