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MS436
本产品不向个人销售,仅用作科学研究,不用于任何人体实验及非科研性质的动物实验。
MS436图片
CAS NO:1395084-25-9
规格:≥98%
包装与价格:
包装价格(元)
5mg电议
25mg电议
50mg电议
100mg电议
250mg电议
500mg电议

产品介绍
理化性质和储存条件
Molecular Weight (MW)383.42
FormulaC18H17N5O3S
CAS No.1395084-25-9
Storage-20℃ for 3 years in powder form
-80℃ for 2 years in solvent
Solubility (In vitro)DMSO: 55 mg/mL (143.4 mM)
Water: <1 mg/mL
Ethanol: 1 mg/mL (2.6 mM)
Other info

Chemical Name: (E)-4-[2-(2-Amino-4-hydroxy-5-methylphenyl)diazenyl]-N-2-pyridinylbenzenesulfonamide

InChi Key: DZTGIRNXWSZBIM-QURGRASLSA-N

InChi Code: InChI=1S/C18H17N5O3S/c1-12-10-16(15(19)11-17(12)24)22-21-13-5-7-14(8-6-13)27(25,26)23-18-4-2-3-9-20-18/h2-11,24H,19H2,1H3,(H,20,23)/b22-21+

SMILES Code: O=S(C1=CC=C(/N=N/C2=CC(C)=C(O)C=C2N)C=C1)(NC3=NC=CC=C3)=O

SynonymsMS-436; MS 436; MS436.
实验参考方法
In Vitro

In vitro activity: As a chemical probe for BRPF bromodomains, OF-1 increases thermal stability in the cellular thermal shift assay of full length BRPF1B at 1 μM and also demonstrates accelerated FRAP recovery at 5 μM in the BRPF2 FRAP assay. In addition, OF-1 shows modest general cytotoxicity.


Kinase Assay: Binding affinity of the newly synthesized diazobenzene compounds (e.g., MS436) for various bromodoamins is assessed in a fluorescence anisotropy competition assay using a fluorescein isothiocyanate (FITC)-labeled MS417 as an assay probe. Competition experiments are performed with a BrD protein (0.25-1 μM) and the fluorescent probe (80 nM), and increasing concentration of unlabeled competing ligand in a PBS buffer (pH 7.4) in total volume of 80 μL Measurements are obtained after a 1 hour incubation of the fluorescent ligand and the protein at 25°C with Safire 2 microplate reader. In a competition-binding assay, fluorescent ligand concentration is ≤2Kd, and protein concentration is set at which 50-80% of fluorescent ligand is bound. Dissociation constant of a competing ligand is calculated with the correction to Cheng-Prussoff equation introduced by Nicolovska-Coleska and colleagues. Assuming one-site competitive binding model, the equation used to calculate Ki’s from IC50 values


Cell Assay: Murine macrophage RAW264.7 cells are plated at a density of 1×104 cells per well in a 96-well plate and incubated at 37°C for 18 h. The cells are then treated with the diazobenzene bromodomain inhibitors (e.g., MS436) up to 100 μM for 24 hours. At the end of the 24 hr incubation, 10 μL of the MTT solution (4 mg/mL) is added to each well and incubated at 37°C for 4 h. The supernatants are then removed and the cells are solubilized in 100 μL of 100% DMSO. The diazobenzene compounds are first dissolved in DMSO then diluted with culture medium to concentrations that ranged from 0.28 to 50000 nM. The final concentration of DMSO is adjusted to 0.05% (v/v). The extent of the reduction is measured by the absorbance at 570/630 nm using EnVison 2104 Multilabel Reader

In Vivo
Animal model
Formulation & Dosage
References

J Med Chem. 2013 Nov 27;56(22):9251-64.