1. Epigenetics
  2. Histone Demethylase
  3. PBIT

PBIT est un inhibiteur spécifique des enzymes du domaine interactif 1 riche en Jumonji AT (JARID1). PBIT inhibe JARID1B (KDM5B ou PLU1) histone déméthylase avec une 50 de environ 3 μM. PBIT inhibe également les JARID1A et JARID1C avec des IC50s de 6 μM et 4,9 μM, respectivement.

PBIT is a specific inhibitor of the Jumonji AT-rich Interactive Domain 1 (JARID1) enzymes. PBIT inhibits JARID1B (KDM5B or PLU1) histone demethylase with an IC50 of about 3 μM . PBIT also inhibits JARID1A and JARID1C with IC50s of 6 μM and 4.9 μM, respectively.

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PBIT Chemical Structure

PBIT Chemical Structure

CAS No. : 2514-30-9

Size Price Stock Quantity
Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO
ready for reconstitution
USD 110 In-stock
Solution
10 mM * 1 mL in DMSO USD 110 In-stock
Solid
1 mg USD 40 In-stock
5 mg USD 100 In-stock
10 mg USD 160 In-stock
25 mg USD 350 In-stock
50 mg USD 580 In-stock
100 mg USD 900 In-stock
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Description

PBIT is a specific inhibitor of the Jumonji AT-rich Interactive Domain 1 (JARID1) enzymes. PBIT inhibits JARID1B (KDM5B or PLU1) histone demethylase with an IC50 of about 3 μM . PBIT also inhibits JARID1A and JARID1C with IC50s of 6 μM and 4.9 μM, respectively[1].

IC50 & Target

KDM5

 

In Vitro

PBIT inhibits proliferation of cells expressing higher levels of JARID1B. PBIT (1-10 μM for UACC-812 cells, 2.5-10μM for MCF7 and MCF10A cells; 72 hours) inhibits cell proliferation in a JARID1B level-dependent manner[1].

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

Cell Proliferation Assay[1]

Cell Line: Human breast cancer cell lines (UACC-812 and MCF7) and human mammary epithelial cells (MCF10A)
Concentration: 1, 3, and 10 μM for UACC-812 cells; 2.5, 5, and 10 μM for MCF7 and MCF10A cells
Incubation Time: 72 hours
Result: Inhibited cell proliferation in a JARID1B level-dependent manner. 10 μM killed most of the UACC-812 cells, but showed minimal toxicity to MCF7 cells and MCF10A cells.
Molecular Weight

241.31

Formula

C14H11NOS

CAS No.
Appearance

Solid

Color

Off-white to brown

SMILES

O=C1N(C2=CC=C(C)C=C2)SC3=C1C=CC=C3

Shipping

Room temperature in continental US; may vary elsewhere.

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

DMSO : 50 mg/mL (207.20 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 4.1440 mL 20.7202 mL 41.4405 mL
5 mM 0.8288 mL 4.1440 mL 8.2881 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
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Volume
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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: ≥ 2.5 mg/mL (10.36 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.
  • Protocol 2

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

    Solubility: 2.5 mg/mL (10.36 mM); Suspended solution; Need ultrasonic

    This protocol yields a suspended solution of 2.5 mg/mL. Suspended solution can be used for oral and intraperitoneal injection.

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 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: 99.46%

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 4.1440 mL 20.7202 mL 41.4405 mL 103.6012 mL
5 mM 0.8288 mL 4.1440 mL 8.2881 mL 20.7202 mL
10 mM 0.4144 mL 2.0720 mL 4.1440 mL 10.3601 mL
15 mM 0.2763 mL 1.3813 mL 2.7627 mL 6.9067 mL
20 mM 0.2072 mL 1.0360 mL 2.0720 mL 5.1801 mL
25 mM 0.1658 mL 0.8288 mL 1.6576 mL 4.1440 mL
30 mM 0.1381 mL 0.6907 mL 1.3813 mL 3.4534 mL
40 mM 0.1036 mL 0.5180 mL 1.0360 mL 2.5900 mL
50 mM 0.0829 mL 0.4144 mL 0.8288 mL 2.0720 mL
60 mM 0.0691 mL 0.3453 mL 0.6907 mL 1.7267 mL
80 mM 0.0518 mL 0.2590 mL 0.5180 mL 1.2950 mL
100 mM 0.0414 mL 0.2072 mL 0.4144 mL 1.0360 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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PBIT
Cat. No.:
HY-101451
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