1. PI3K/Akt/mTOR
  2. mTOR
  3. Rheb inhibitor NR1

Rheb inhibitor NR1 is a Rheb inhibitor with an IC50 of 2.1 µM in the Rheb-IVK assay. Rheb inhibitor NR1 can directly bind Rheb in the switch II domain and selectively inhibit the activation of mechanistic target of rapamycin complex 1 (mTORC1). Rheb inhibitor NR1 inhibits the phosphorylation of mTORC1 driven T389pS6K1 and increases the phosphorylation of S473pAKT in a dose-dependent manner. Rheb inhibitor NR1 does not influence mTORC2 activity.
(Rheb-IVK: Rheb-dependent mTORC1 kinase activity)

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Rheb inhibitor NR1 Chemical Structure

Rheb inhibitor NR1 Chemical Structure

CAS No. : 2216763-38-9

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Based on 2 publication(s) in Google Scholar

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Description

Rheb inhibitor NR1 is a Rheb inhibitor with an IC50 of 2.1 µM in the Rheb-IVK assay. Rheb inhibitor NR1 can directly bind Rheb in the switch II domain and selectively inhibit the activation of mechanistic target of rapamycin complex 1 (mTORC1). Rheb inhibitor NR1 inhibits the phosphorylation of mTORC1 driven T389pS6K1 and increases the phosphorylation of S473pAKT in a dose-dependent manner. Rheb inhibitor NR1 does not influence mTORC2 activity[1].
(Rheb-IVK: Rheb-dependent mTORC1 kinase activity)

IC50 & Target

Rheb, mTORC1[1]

In Vitro

NR1 (1-10 μM; 48 h) reduces the size of Jurkat cells[1].
NR1 (0.37-30 μM; 90 min for MCF-7 and TRI102; 24 h for PC3) inhibits the phosphorylation of T389pS6K1 and increases the phosphorylation of S473pAKT in MCF-7, TRI102 and PC3 cells[1].
NR1 (1-30 μM; 2.5 h) reduced protein synthesis in MCF-7[1].

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

Cell Viability Assay[1]

Cell Line: Jurkat cells
Concentration: 1, 3 and 10 μM
Incubation Time: 48 h
Result: Effectively reduced the size of Jurkat cells in a dose-dependent manner.

Western Blot Analysis[1]

Cell Line: MCF-7, TRI102 and PC3 cells
Concentration: 0.37, 1.1, 3.3, 10 and 30 μM
Incubation Time: 90 min for MCF-7 and TRI102; 24 h for PC3
Result: Inhibited the phosphorylation of T389pS6K1 and increased the phosphorylation of S473pAKT in a dose-dependent manner.

Western Blot Analysis[1]

Cell Line: MCF-7
Concentration: 1, 3, 10 and 30 μM
Incubation Time: 2.5 h (then labeled the cells with an 35S-Met labeling mix for 30 min)
Result: Dose-dependently reduced protein synthesis.
In Vivo

NR1 (30 mg/kg; IP; single dosage) significantly reduces mTORC1 activity in both kidney and skeletal muscle, and exhibited a clear band shift for T37/464E-BP1 in skeletal muscle[1].

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

Animal Model: Male C57BL/6 mice (6-7 weeks; fast for 16 hours)[1]
Dosage: 30 mg/kg
Administration: IP; single dosage
Result: Sustained over 5 µM for 2 h.
Significantly reduced mTORC1 activity in both kidney and skeletal muscle, and exhibited a clear band shift for T37/464E-BP1 in skeletal muscle.
Molecular Weight

578.30

Formula

C25H19BrCl2N2O3S

CAS No.
Appearance

Solid

Color

White to off-white

SMILES

O=C(C(N1CC2=CC=C(C(N(C)C)=O)C=C2)=CC3=C1C=C(SC4=CC=C(Cl)C(Cl)=C4)C=C3Br)O

Shipping

Room temperature in continental US; may vary elsewhere.

Storage
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
Solvent & Solubility
In Vitro: 

DMSO : 50 mg/mL (86.46 mM; Need ultrasonic; 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 1.7292 mL 8.6460 mL 17.2921 mL
5 mM 0.3458 mL 1.7292 mL 3.4584 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, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

  • Molarity Calculator

  • Dilution Calculator

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

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

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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: ≥ 2.5 mg/mL (4.32 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 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.
In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:

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Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
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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: 99.46%

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, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 1.7292 mL 8.6460 mL 17.2921 mL 43.2302 mL
5 mM 0.3458 mL 1.7292 mL 3.4584 mL 8.6460 mL
10 mM 0.1729 mL 0.8646 mL 1.7292 mL 4.3230 mL
15 mM 0.1153 mL 0.5764 mL 1.1528 mL 2.8820 mL
20 mM 0.0865 mL 0.4323 mL 0.8646 mL 2.1615 mL
25 mM 0.0692 mL 0.3458 mL 0.6917 mL 1.7292 mL
30 mM 0.0576 mL 0.2882 mL 0.5764 mL 1.4410 mL
40 mM 0.0432 mL 0.2162 mL 0.4323 mL 1.0808 mL
50 mM 0.0346 mL 0.1729 mL 0.3458 mL 0.8646 mL
60 mM 0.0288 mL 0.1441 mL 0.2882 mL 0.7205 mL
80 mM 0.0216 mL 0.1081 mL 0.2162 mL 0.5404 mL
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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.

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Rheb inhibitor NR1
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