2. Protein Tyrosine Kinase/RTK
  3. Itk
  4. PRN694

PRN694 is an irreversible, highly selective and potent covalent interleukin-2-inducible T-cell kinase (ITK) and resting lymphocyte kinase (RLK) dual inhibitor with IC50s of 0.3 nM and 1.4 nM, respectively. PRN694 exhibits extended target residence time on ITK and RLK, enabling durable attenuation of effector cells in vitro and in vivo.

For research use only. We do not sell to patients.

PRN694 Chemical Structure

PRN694 Chemical Structure

CAS No. : 1575818-46-0

Size Price Stock Quantity
Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO
ready for reconstitution
 USD 1263 In-stock
Solution
10 mM * 1 mL in DMSO USD 1263 In-stock
Solid
1 mg USD 336 In-stock
5 mg USD 850 In-stock
10 mg USD 1360 In-stock
25 mg USD 2720 In-stock
50 mg USD 4350 In-stock
100 mg   Get quote  
200 mg   Get quote  

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Customer Review

Based on 1 publication(s) in Google Scholar

PRN694 Related Antibodies

Top Publications Citing Use of Products

1 Publications Citing Use of MCE PRN694

  • Biological Activity

  • Protocol

  • Purity & Documentation

  • References

  • Customer Review

Description

PRN694 is an irreversible, highly selective and potent covalent interleukin-2-inducible T-cell kinase (ITK) and resting lymphocyte kinase (RLK) dual inhibitor with IC50s of 0.3 nM and 1.4 nM, respectively. PRN694 exhibits extended target residence time on ITK and RLK, enabling durable attenuation of effector cells in vitro and in vivo[1].

IC50 & Target

IC50: 0.3 nM (ITK), 1.4 nM (RLK), 3.3 nM (TEC), 17 nM (BTK), 17 nM (BMX), 30 nM (JAK3), 125 nM (BLK)[1]
In Vitro

PRN694 inhibits TEC, BTK, BMX, BLK, JAK3 with IC50s of 3.3, 17, 17, 125, 30 nM, respectively[1].
? Immunoblot analysis of TCR activation pathways reveales that PRN694 blocks activation or nuclear translocation of NFAT1, JunB, pIκBα, and pERK. Results reveal inhibition of Ca2+ signaling with PRN694 at all concentrations above 1 nM. PRN694 significantly attenuates NK cell FcR-induced killing at concentrations exceeding 0.37 μM[1].
? Day 6 flow cytometry analysis reveals that PRN694 significantly inhibits the anti-CD3/CD28-induced proliferation of both CD4 and CD8 T-cells (p<0.01)[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

PRN694 Related Antibodies
In Vivo

The PRN694 occupancy of ITK is 98, 95, and 54% at 1, 6, and 14 h, respectively. The concentrations of PRN694 in the plasma are 2.8, 0.66, and 0.027 μM at 1, 6, and 14 h, respectively. At 14 h, the plasma level of PRN694 is over 10 fold lower than the IC50 in whole blood. RN694 treatment also results in significantly lower weights relative to vehicle (p<0.05)[1].
? Colitis studies show reduced numbers of CD4+ T cells present in the colonic epithelium of PRN694-treated mice compare with controls[2].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Molecular Weight

543.67

Formula

C28H35F2N5O2S
CAS No.
Appearance

Solid

Color

Off-white to light brown

SMILES

O=C(C1=CC=C(C(F)F)S1)NC2=NC3=CC(CN[C@@H](C)C(C)(C)C)=CC=C3N2C[C@@H]4N(C(C=C)=O)CCC4
Shipping

Room temperature in continental US; may vary elsewhere.
Storage
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 2 years
-20°C 1 year
Solvent & Solubility
In Vitro: 

DMSO : 125 mg/mL (229.92 mM; Need ultrasonic and warming; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 1.8394 mL 9.1968 mL 18.3935 mL
5 mM 0.3679 mL 1.8394 mL 3.6787 mL
View the Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

  • Molarity Calculator

  • Dilution Calculator

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass
=
Concentration
×
Volume
×
Molecular Weight *

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

×
Volume (start)

V1

=
Concentration (final)

C2

×
Volume (final)

V2

In Vivo:

Select the appropriate dissolution method based on your experimental animal and administration route.

For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for in vivo experiments, it is recommended to prepare freshly and use it on the same day.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

  • Protocol 1

    Add each solvent one by one:  10% DMSO    40% PEG300    5% Tween-80    45% Saline

    Solubility: ≥ 2.08 mg/mL (3.83 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.

    Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
  • Protocol 2

    Add each solvent one by one:  10% DMSO    90% (20% SBE-β-CD in Saline)

    Solubility: ≥ 2.08 mg/mL (3.83 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.

    Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.
In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:

Dosage

mg/kg

Animal weight
(per animal)

g

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
%
DMSO +
% 
+
%
Tween-80 +
%
Saline
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).
Calculation results:
Working solution concentration: mg/mL
Method for preparing stock solution: mg drug dissolved in μL  DMSO (Stock solution concentration: mg/mL).
The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only. If necessary, please contact MedChemExpress (MCE).
Method for preparing in vivo working solution for animal experiments: Take μL DMSO stock solution, add μL . μL , mix evenly, next add μL Tween 80, mix evenly, then add μL Saline.
 If the continuous dosing period exceeds half a month, please choose this protocol carefully.
Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
Purity & Documentation

Purity: ≥99.0%

COA (250 KB) HNMR (100 KB)

Handling Instructions (2659 KB)
References
Kinase Assay
[1]

Recombinant ITK at a final concentration of 0.5 μM in 50 mM Hepes, pH 7.5, 10 mM MgCl2, 0.01% Triton X-100, and 1 mM EGTA are combined with 1.5 μM PRN694 for 90 min to facilitate binding. The mixture is then diluted 50 fold to initiate dissociating of the ligand from the enzyme, and 10 μL is transferred to a Greiner 384-well black plate. Europium-coupled anti-His6 antibody is added to each well and incubated for 5 min, followed by the addition of an ITK binding fluorescent tracer. The tracer binds to ITK as a function of ligand dissociation, and binding is detected by time-resolved FRET between the europium-coupled antibody and the tracer on a plate reader. Time points acquired are 0.25, 1, 3, 6, and 24 h[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
Cell Assay
[1]

Cells are cultured in vitro at 37°C and 5% CO2 using RPMI 1640 with 10% fetal calf serum. Cells are pretreated for 30 min with PRN694 or other inhibitors and then washed two times. T-cells are then stimulated for 6 h with 1 μg/mL soluble anti-CD3 for CD69 activation, which is detected by flow cytometry, or 45 min with plate-bound anti-CD3 (10 μg/mL plating concentration) and soluble anti-CD28 (1 μg/mL) for downstream signal analysis by immunoblotting. NK cells are stimulated for 6 h with plate-bound anti-CD52 for CD107a/b activation, detected by flow cytometry, or for 45 min for downstream signal analysis by immunoblotting[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
Animal Administration
[1]

Mice are randomized by weight and sensitized with aliquots of 150 μL of 5% oxazolone in 3 parts ethanol and 1 part acetone on their shaved abdomens. Seven days after the sensitization, the mice are challenged with 10 μL of 3% oxazolone on the front and back of the right ears. The left ears are treated with the ethanol/acetone mixture. One hour prior to the challenge, the animals received either vehicle control (5% ethanol, 95% Captex 355 NP/EF, intraperitoneal injection at 5 mL/kg), 20 mg/kg PRN694 in 5% ethanol, 95% Captex (intraperitoneal injection at 5 mL/kg), or 0.5 mg/kg dexamethasone (intraperitoneal injection at 5 mL/kg). A control group of animals receive no oxazolone or drug treatment. Twenty-four hours after the oxazolone challenge, the mice are sacrificed, and a 7 mm disc is punched out of each ear and weighed to measure edema[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
References

Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 1.8394 mL 9.1968 mL 18.3935 mL 45.9838 mL
5 mM 0.3679 mL 1.8394 mL 3.6787 mL 9.1968 mL
10 mM 0.1839 mL 0.9197 mL 1.8394 mL 4.5984 mL
15 mM 0.1226 mL 0.6131 mL 1.2262 mL 3.0656 mL
20 mM 0.0920 mL 0.4598 mL 0.9197 mL 2.2992 mL
25 mM 0.0736 mL 0.3679 mL 0.7357 mL 1.8394 mL
30 mM 0.0613 mL 0.3066 mL 0.6131 mL 1.5328 mL
40 mM 0.0460 mL 0.2299 mL 0.4598 mL 1.1496 mL
50 mM 0.0368 mL 0.1839 mL 0.3679 mL 0.9197 mL
60 mM 0.0307 mL 0.1533 mL 0.3066 mL 0.7664 mL
80 mM 0.0230 mL 0.1150 mL 0.2299 mL 0.5748 mL
100 mM 0.0184 mL 0.0920 mL 0.1839 mL 0.4598 mL
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PRN694 Related Classifications

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

Keywords:

PRN6941575818-46-0PRN 694PRN-694ItkInterleukin-2 inducible T-cell kinaseIL2 inducible T-cell kinaseInhibitorinhibitorinhibit

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