CTB

Cas No.:	451491-47-7
Chemical Name:	CTB
SMILES:	O=C(NC1=CC=C(Cl)C(C(F)(F)F)=C1)C2=CC=CC=C2OCC
Formula:	C16H13ClF3NO2
M.Wt:	343.73
Purity:	>98%
Sotrage:	2 years -20°C Powder, 2 weeks 4°C in DMSO, 6 months -80°C in DMSO
Publication:	[1]. Mantelingu K, et al. Activation of p300 histone acetyltransferase by small molecules altering enzyme structure: probed by surface-enhanced Raman spectroscopy. J Phys Chem B. 2007;111(17):4527-4534. [2]. Dastjerdi MN, et al. The effect of CTB on P53 protein acetylation and consequence apoptosis on MCF-7 and MRC-5 cell lines. Adv Biomed Res. 2013;2:24. Published 2013 Mar 6. [3]. Chen X, et al. Promoting tau secretion and propagation by hyperactive p300/CBP via autophagy-lysosomal pathway in tauopathy. Mol Neurodegener. 2020;15(1):2. Published 2020 Jan 6.

Description:	CTB (Cholera Toxin B subunit) is a potent p300 histone acetyltransferase activator[1]. CTB can effectively induce apoptosis in MCF-7 cells[2].
Target:	p300
In Vitro:	CTB (10, 50, 100, 150, 200, and 250 µM; 10 min) enhances p300 HAT activity of p300 in a dosedependent manner[1]. CTB (0-200 μM; 24 hours) inhibits the viability of MCF-7 cells with an IC50 of 85.43 μM[2]. CTB (85.43 μM; 24, 48 and 72 h) induces time dependence apoptosis of MCF-7 cells[2]. CTB (50 uM; 24 h) increases p300/CBP activity , and reduces autophagic flux in primary neurons[3]. Cell Viability Assay[2] Cell Line: MCF-7 cell Concentration: 0-200 μM Incubation Time: 24 hours Result: Inhibit viability with an IC50 of 85.43 μM. Apoptosis Analysis[2] Cell Line: MCF-7 cell Concentration: 85.43 μM Incubation Time: 24, 48 and 72 h Result: Iinduced time-dependence apoptosis.
References:	[1]. Mantelingu K, et al. Activation of p300 histone acetyltransferase by small molecules altering enzyme structure: probed by surface-enhanced Raman spectroscopy. J Phys Chem B. 2007;111(17):4527-4534. [2]. Dastjerdi MN, et al. The effect of CTB on P53 protein acetylation and consequence apoptosis on MCF-7 and MRC-5 cell lines. Adv Biomed Res. 2013;2:24. Published 2013 Mar 6. [3]. Chen X, et al. Promoting tau secretion and propagation by hyperactive p300/CBP via autophagy-lysosomal pathway in tauopathy. Mol Neurodegener. 2020;15(1):2. Published 2020 Jan 6.