General description
A cell-permeable benzylidenbarbituric acid derivative that acts as a potent, selective inhibitor of lysine acetyltransferase p300/CBP paralogues (IC50 = 2.9 µM and 1.1 µM for recombinant p300 and CBP, respectively). The inhibition appears to be reversible and is non-competitive with respect to both acetyl-CoA and a histone H3 peptide. It binds to both the free enzyme and the enzyme-substrate complex with uneven affinities. Does not affect the activity of general control non-derepressible 5 (GCN5) and p300/CBP-associated factor (PCAF). Shown to reduce the acetylation of lysine H4K5 and H3K9 in U937 cells (~100 µM) and induce a cell cycle arrest at the G0/G1 phase with an increase in the percentage of hypodiploid nuclei (~ 100 µM).
A cell-permeable benzylidenbarbituric acid derivative that acts as a potent, selective inhibitor of lysine acetyltransferase p300/CBP paralogues (IC50 = 2.9 µM and 1.1 µM for recombinant p300 and CBP, respectively). The inhibition appears to be reversible and is non-competitive with respect to both acetyl-CoA and a histone H3 peptide. It binds to both the free enzyme and the enzyme-substrate complex with uneven affinities. Does not affect the activity of general control non-derepressible 5 (GCN5) and p300/CBP-associated factor (PCAF). Shown to reduce the acetylation of lysine H4K5 and H3K9 in U937 cells (~100 µM) and induce a cell cycle arrest at the G0/G1 phase with an increase in the percentage of hypodiploid nuclei (~ 100 µM).
Please note that the molecular weight for this compound is batch-specific due to variable water content. Please refer to the vial label or the certificate of analysis for the batch-specific molecular weight. The molecular weight provided represents the baseline molecular weight without water.
Biochem/physiol Actions
Cell permeable: yes
Primary Target
p300/CBP
Reversible: yes
Packaging
Packaged under inert gas
Warning
Toxicity: Standard Handling (A)
Reconstitution
Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 3 months at -20°C.
Other Notes
Milite, C., et al. 2015. J. Med. Chem.58, in press.
Legal Information
CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany
Molecular Weight: 440.49. Empirical Formula: C27H24N2O4. Assay: ≥. 98% (HPLC). Quality Level: 100. form: solid. manufacturer/tradename: Calbiochem®. . storage condition: OK to freeze, protect from light. color: yellow. solubility: DMSO: 100 . mg/mL. storage temp.: 2-8°C. Storage Class Code: 11 - Combustible Solids. WGK: WGK 3. Flash Point(F): Not applicable. Flash Point(C): Not applicable.- UPC:
- 51312002
- Condition:
- New
- Weight:
- 1.00 Ounces
- HazmatClass:
- No
- WeightUOM:
- LB
- MPN:
- 5343540001