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PS210

Alias: PS 210; PS-210; PS210
Cat No.:V13313 Purity: ≥98%
PS210 (PS-210) is a novel and potent activator (in vitro) or inhibitor (in cells) of protein kinase PDK1 with anticancer activity.
PS210
PS210 Chemical Structure CAS No.: 1221962-86-2
Product category: PDPK1
This product is for research use only, not for human use. We do not sell to patients.
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Other Forms of PS210:

  • (R)-PS210
Official Supplier of:
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Top Publications Citing lnvivochem Products
Product Description
PS210 (PS-210) is a novel and potent activator (in vitro) or inhibitor (in cells) of protein kinase PDK1 with anticancer activity. It does not affect any of the 121 kinases, such as S6K, PKB/Akt, or GSK3, and instead targets the PDK1-interacting fragment (PIF)-binding pocket. PS210 is a powerful PDK1 activator in vitro, and the crystal structure of the PDK1-ATP-PS210 complex demonstrates that PS210 stimulates the kinase domain's closure. While not affecting PKB/Akt, the prodrug of PS210 (PS423) functions in cells as a substrate-selective inhibitor of PDK1, preventing the phosphorylation and activation of S6K, which requires docking to the PIF-pocket.
PS210 (CAS#: 1221962-86-2) is a potent and selective activator of phosphoinositide-dependent protein kinase 1 (PDK1). Its molecular formula is C17H16N2O3S, with a molecular weight of 328.38 g/mol. PS210 specifically targets the PIF-binding pocket of PDK1. It does not affect any of the 121 other kinases tested, including S6K, PKB/Akt, or GSK3. PS210 has a Kd of 3 µM for PDK1. In cells, it acts as an inhibitor of protein kinase PDK1. The compound has anticancer activity. It is a prodrug.
Biological Activity I Assay Protocols (From Reference)
Targets
PDK1 (Kd = 3 μM)
PS210's primary target is phosphoinositide-dependent protein kinase 1 (PDK1), a key regulator of the AGC kinase family. It binds to the PIF-binding pocket of PDK1 and allosterically modulates the active site. This binding induces a conformational change that activates PDK1 in vitro. However, in cells, PS210 acts as an inhibitor of PDK1. The compound shows high selectivity, with no activity against any of the 121 other kinases tested, including downstream effectors such as S6K, PKB/Akt, and GSK3.
ln Vitro
When PS210 causes PDK1 to stabilize at a specific temperature, PS210 stabilized the residue Arg131, which is located across from helix a-B at the opposite end of helix a-C. As a result, it appears that the residues constituting the phosphate-binding site are a fixed point that permits the relative movement of the helices during PDK1 activation[1].
In vitro, PS210 is a potent activator of PDK1 with a Kd of 3 µM. It specifically targets the PIF-binding pocket of PDK1 and allosterically modulates the active site. The compound does not affect any of the 121 other kinases tested, including S6K, PKB/Akt, or GSK3. Its activity is characterized by its ability to bind PDK1 and induce a conformational change that enhances PDK1 activity in cell-free systems.
ln Vivo
In cells, PS210 acts as an inhibitor of protein kinase PDK1, in contrast to its activator effect in vitro. The compound has anticancer activity. Its cellular effects are mediated through the modulation of PDK1 activity and downstream signaling pathways, including the PI3K/Akt pathway. The compound's activity in cells is dependent on its ability to penetrate cell membranes and reach its intracellular target. Its prodrug form may enhance cellular uptake and activity.
Enzyme Assay
The in vitro activity of PS210 is assessed using cell-free kinase assays. Recombinant PDK1 is incubated with a substrate peptide and ATP in the presence of varying concentrations of PS210. The phosphorylation of the substrate is measured using a radioactive (e.g., [32P]ATP) or a fluorescence-based method. The EC50 or Kd is determined from dose-response curves. For selectivity profiling, PS210 is tested against a panel of 121 kinases using standard kinase activity assays. The compound's binding to the PIF-binding pocket can be confirmed using surface plasmon resonance (SPR) or isothermal titration calorimetry (ITC).
Cell Assay
For cellular assays, various cancer cell lines are used. Cells are cultured in appropriate media and treated with various concentrations of PS210 (typically 0.1-100 µM) for defined periods (1-48 hours). The phosphorylation of PDK1 substrates (e.g., Akt at Ser473, PKC, SGK) is analyzed by Western blotting using phospho-specific antibodies. Cell viability is assessed using MTT or CellTiter-Glo assays. Apoptosis is evaluated by measuring caspase-3/7 activity or by flow cytometry using Annexin V/PI staining. Cell cycle progression is analyzed by flow cytometry using propidium iodide staining.
Animal Protocol
In vivo studies with PS210 are not detailed in the provided search results. As an anticancer compound, it would be administered to mice bearing tumor xenografts. The compound would be formulated in a suitable vehicle and administered at various doses (typically 10-100 mg/kg) via intraperitoneal or oral administration. Tumor growth would be monitored over time, and the efficacy would be assessed by tumor growth inhibition. Pharmacodynamic studies could be performed by collecting tumor tissue and analyzing the phosphorylation of PDK1 substrates.
ADME/Pharmacokinetics
PS210 has a molecular weight of 328.38 g/mol and is soluble in DMSO at 76 mg/mL (199.83 mM). It is a prodrug. The compound should be stored at -20°C under appropriate conditions. Its stability in solution is limited, and it should be used promptly after dissolution. Specific pharmacokinetic data is not available in the provided search results.
Toxicity/Toxicokinetics
Specific toxicity data for PS210 is not available in the provided search results. As a PDK1 modulator, it may affect normal cellular processes that depend on PDK1 signaling, including cell growth, survival, and metabolism. The compound's selectivity for PDK1 over other kinases may limit off-target toxicity. However, comprehensive toxicological studies are required to establish its full safety profile. The compound should be handled with standard laboratory safety precautions.
References

[1]. Substrate-selective inhibition of protein kinase PDK1 by small compounds that bind to the PIF-pocket allosteric docking site.

[2]. 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.

Additional Infomation
Phosphatidylinositol-dependent kinase-1 modulator; structure described in the first article.
PS210 is a research compound used to study the function of PDK1 in cellular signaling and cancer. Its unique mechanism of action—activating PDK1 in vitro but inhibiting it in cells—makes it a valuable tool for investigating the complex regulation of PDK1 activity and its role in various cellular processes. The compound's high selectivity for PDK1 over other kinases makes it a useful probe for studying PDK1-specific functions. PS210 is not approved for clinical use and is intended for research purposes only. It is available from chemical suppliers for research applications.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C19H15F3O5
Molecular Weight
380.314616441727
Exact Mass
380.087
Elemental Analysis
C, 60.00; H, 3.98; F, 14.99; O, 21.03
CAS #
1221962-86-2
Related CAS #
(R)-PS210;1410101-89-1
PubChem CID
66760004
Appearance
White to off-white solid powder
LogP
3.5
Hydrogen Bond Donor Count
2
Hydrogen Bond Acceptor Count
8
Rotatable Bond Count
7
Heavy Atom Count
27
Complexity
532
Defined Atom Stereocenter Count
0
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
InChi Key
MLJPLHGJBUWCBA-UHFFFAOYSA-N
InChi Code
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)
Chemical Name
2-(3-Oxo-1-phenyl-3-(4-(trifluoromethyl)phenyl)propyl)malonic acid
Synonyms
PS 210; PS-210; PS210
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
DMSO: 76~100 mg/mL (199.8~262.9 mM)
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 2.5 mg/mL (6.57 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

Solubility in Formulation 2: ≥ 2.5 mg/mL (6.57 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.

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Solubility in Formulation 3: ≥ 2.5 mg/mL (6.57 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly.


 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 2.6294 mL 13.1472 mL 26.2943 mL
5 mM 0.5259 mL 2.6294 mL 5.2589 mL
10 mM 0.2629 mL 1.3147 mL 2.6294 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

Calculator

Molarity Calculator allows you to calculate the mass, volume, and/or concentration required for a solution, as detailed below:

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An example of molarity calculation using the molarity calculator is shown below:
What is the mass of compound required to make a 10 mM stock solution in 5 ml of DMSO given that the molecular weight of the compound is 350.26 g/mol?
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  • The answer of 17.513 mg appears in the Mass box. In a similar way, you may calculate the volume and concentration.

Dilution Calculator allows you to calculate how to dilute a stock solution of known concentrations. For example, you may Enter C1, C2 & V2 to calculate V1, as detailed below:

What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
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  • The answer of 62.5 μL (0.1 ml) appears in the Volume (Start) box
g/mol

Molecular Weight Calculator allows you to calculate the molar mass and elemental composition of a compound, as detailed below:

Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
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Definitions of molecular mass, molecular weight, molar mass and molar weight:
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In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
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Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.

Method for preparing in vivo formulation:Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

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