2. Epigenetics
  3. Epigenetic Reader Domain
  4. GSK046

GSK046 (iBET-BD2) is a potent, selective and orally active BD2 bromodomain inhibitor of the BET proteins, with IC50s of 264 nM (BRD2 BD2), 98 nM (BRD3 BD2), 49 nM (BRD4 BD2) and 214 nM (BRDT BD2), respectively. GSK046 has immunomodulatory activity.

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GSK046 Chemical Structure

GSK046 Chemical Structure

CAS No. : 2474876-09-8

Size Price Stock Quantity
Solid + Solvent
10 mM * 1 mL in DMSO
ready for reconstitution
 USD 330 In-stock
Solution
10 mM * 1 mL in DMSO USD 330 In-stock
Solid
1 mg USD 142 In-stock
5 mg USD 300 In-stock
10 mg USD 480 In-stock
25 mg USD 980 In-stock
50 mg USD 1550 In-stock
100 mg USD 2500 In-stock
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Customer Review

Based on 2 publication(s) in Google Scholar

GSK046 Related Antibodies

Top Publications Citing Use of Products

  • Biological Activity

  • Purity & Documentation

  • References

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Description

GSK046 (iBET-BD2) is a potent, selective and orally active BD2 bromodomain inhibitor of the BET proteins, with IC50s of 264 nM (BRD2 BD2), 98 nM (BRD3 BD2), 49 nM (BRD4 BD2) and 214 nM (BRDT BD2), respectively. GSK046 has immunomodulatory activity[1].

IC50 & Target[1]

BRD2 BD2

264 nM (IC50)

BRD3 BD2

98 nM (IC50)

BRD4 BD2

49 nM (IC50)

BRDT BD2

214 nM (IC50)

In Vitro

GSK046 (1000 nM; refresh every three days) reduces the recruitment of BET proteins to interferon (IFN) target genes following IFN-γ stimulation. GSK046 appears to more prominently affect the recruitment of BRD2 and BRD3 compared to BRD4[1].
GSK046 (0.1-10 μM) displays a more selective phenotypic fingerprint, particularly inhibiting the production of key pro-inflammatory mediators including Th17 cytokines in the B and T cell co-culture system[1].
GSK046 (0.01-10 μM; 72 hours) does not affect the proliferative activity of human primary CD4+ T cells but still inhibits the production of effector cytokines including IFNγ, IL-17A and IL-22[1].
GSK046 (0.005-10 μM; 48 hours) impairs macrophage activation following PMA stimulation, without impacting cellular viability[1].

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

GSK046 Related Antibodies

Cell Proliferation Assay[1]

Cell Line: Human primary CD4+ T cell
Concentration: 0.001, 0.01, 0.1, 1, 10 μM
Incubation Time: 72 hours
Result: Did not affect the proliferative activity of the cells but still inhibited the production of effector cytokines.
In Vivo

GSK046 (40 mg/kg/QD; s.c. for 14 days) has immunomodulatory activity[1].
GSK046 exhibits Cmax (C57BL6 1589, C57B16 2993 ng/mL) and terminal elimination half-lives (C57BL6 1.8, C57B16 1.9 h) following oral administration (C57BL6 10, C57B16 40 mg/kg)[1].
GSK046 exhibits Cmax (mouse 1589, rat 202 ng/mL) and terminal elimination half-lives (mouse 1.8, rat 1.4 h) following oral administration (mouse 10, rat 10 mg/kg)[1].

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

Animal Model: Male C57BL/6 mice (8/10-weeks-old) are injected with keyhole limpet hemocyanin (KLH)[1]
Dosage: 40 mg/kg/QD
Administration: S.c. injections for 14 days
Result: Reduced the production of anti-keyhole limpet hemocyanin (KLH) IgM and was well tolerated.
Animal Model: Female C57BL/6 mice[1]
Dosage: 10 mg/kg (Pharmacokinetic Analysis)
Administration: Oral administration
Result: Cmax (1859 ng/mL), T1/2 (1.8 h).
Animal Model: Male C57BL/6 mice[1]
Dosage: 40 mg/kg (Pharmacokinetic Analysis)
Administration: Oral administration
Result: Cmax (2993 ng/mL), T1/2 (1.9 h).
Animal Model: Female Lewis rat[1]
Dosage: 10 mg/kg (Pharmacokinetic Analysis)
Administration: Oral administration
Result: Cmax (202 ng/mL), T1/2 (1.4 h).
Molecular Weight

414.47

Formula

C23H27FN2O4
CAS No.
Appearance

Solid

Color

White to off-white

SMILES

O=C(N[C@H]1CC[C@H](O)CC1)C2=CC(O[C@H](C3=CC=CC=C3)C)=C(NC(C)=O)C(F)=C2
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 : 83.33 mg/mL (201.05 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 2.4127 mL 12.0636 mL 24.1272 mL
5 mM 0.4825 mL 2.4127 mL 4.8254 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)

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 (5.02 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 (5.02 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: 99.65%

COA (248 KB) HNMR (257 KB) RP-HPLC (277 KB) MS (68 KB)

Handling Instructions (2659 KB)
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 2.4127 mL 12.0636 mL 24.1272 mL 60.3180 mL
5 mM 0.4825 mL 2.4127 mL 4.8254 mL 12.0636 mL
10 mM 0.2413 mL 1.2064 mL 2.4127 mL 6.0318 mL
15 mM 0.1608 mL 0.8042 mL 1.6085 mL 4.0212 mL
20 mM 0.1206 mL 0.6032 mL 1.2064 mL 3.0159 mL
25 mM 0.0965 mL 0.4825 mL 0.9651 mL 2.4127 mL
30 mM 0.0804 mL 0.4021 mL 0.8042 mL 2.0106 mL
40 mM 0.0603 mL 0.3016 mL 0.6032 mL 1.5079 mL
50 mM 0.0483 mL 0.2413 mL 0.4825 mL 1.2064 mL
60 mM 0.0402 mL 0.2011 mL 0.4021 mL 1.0053 mL
80 mM 0.0302 mL 0.1508 mL 0.3016 mL 0.7540 mL
100 mM 0.0241 mL 0.1206 mL 0.2413 mL 0.6032 mL
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GSK046 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:

GSK0462474876-09-8iBET-BD2GSK 046GSK-046Epigenetic Reader DomainBD2BRD2BRD3 BRD4BRDT immuno-inflammationInhibitorinhibitorinhibit

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