CBP/p300 Inhibitor

A-485, a chemical probe, is a potent and selective catalytic inhibitor of p300/CBP with IC₅₀s of 9.8 nM and 2.6 nM for p300 and CBP histone acetyltransferase (HAT), respectively.

Curcumin (Diferuloylmethane), a natural phenolic compound, is a p300/CREB-binding protein-specific inhibitor of acetyltransferase, represses the acetylation of histone/nonhistone proteins and histone acetyltransferase-dependent chromatin transcription. Curcumin is a photosensitizer against microorganisms. Curcumin shows inhibitory effects on NF-κB and MAPKs, and has diverse pharmacologic effects including anti-inflammatory, antioxidant, antiproliferative and antiangiogenic activities. Curcumin induces stabilization of Nrf2 protein through Keap1 cysteine modification.

C646 is a selective and competitive histone acetyltransferase p300 inhibitor with K_i of 400 nM, and is less potent for other acetyltransferases.

BT-O2C is a p300 PROTAC degrader. BT-O2C induces p300 degradation via proteasome- and ubiquitin-like modification-dependent pathways, downregulates the expression of CIC::DUX4 sarcoma target genes, and exerts cytotoxicity against such sarcoma cells. BT-O2C can be used in CIC::DUX4 sarcoma-related studies.

JYZ3032 is an orally active super inhibitor of androgen receptor (AR) and p300/CBP. JYZ3032 redirects the catalytic activity of p300 and locks the complex in a transcriptionally inactive state, thereby inhibiting AR-driven transcription and proliferation. JYZ3032 induces deep and durable tumor regression in castration-resistant and patient-derived xenograft models, and exhibits good tolerability. JYZ3032 can be used in research related to metastatic castration-resistant prostate cancer and prostate cancer.

SGC-CBP30, a chemical probe, is a potent and highly selective CBP/p300 bromodomain (K_ds of 21 nM and 32 nM for CBP and p300, respectively) inhibitor, displaying 40-fold selectivity over the first bromodomain of BRD4 [BRD4(1)] bound. SGC-CBP30 strongly reduces secretion of IL-17A in Th17 cells and has anti-inflammatory effects.

MG149 (Tip60 HAT inhibitor) is a selective and potent Tip60 inhibitor with IC₅₀ of 74 uM, similar potentcy for MOF (IC₅₀ = 47 uM); little potent for PCAF and p300 (IC₅₀ >200 uM). MG 149 inhibits KAT8 and blocks PINK1 kinase activity. MG149 inhibits the phosphorylation of Parkin and ubiquitin, thereby suppressing the initiation of PINK1-dependent mitophagy. MG 149 can reverse chronic restraint stress (CRS) induced hypertension and related molecular changes. MG 149 commonly used in research on diseases such as hypertension and Parkinson's disease.

Anacardic Acid, extracted from cashew nut shell liquid, is a histone acetyltransferase inhibitor, inhibits HAT activity of p300 and PCAF, with IC₅₀s of ∼8.5 μM and ∼5 μM, respectively.

NSC 228155 is an activator of EGFR, binds to the extracellular region of EGFR and enhance tyrosine phosphorylation of EGFR. NSC 228155 is also a potent inhibitor of KIX-KID interaction, inhibits kinase-inducible domain (KID) from CREB and KID-interacting domain (KIX) from CBP, with an IC₅₀ of 0.36 μM.

GNE-049 is a highly potent and selective CBP inhibitor with an IC₅₀ of 1.1 nM in TR-FRET assay. GNE-049 also inhibits BRET and BRD4(1) with IC₅₀s of 12 nM and 4200 nM, respectively.

PU139 is a potent pan-histone acetyltransferase (HAT) inhibitor. PU139 blocks the HATs Gcn5, p300/CBP-associated factor (PCAF), CREB (cAMP response element-binding) protein (CBP) and p300 with IC₅₀s of 8.39, 9.74, 2.49 and 5.35 μM, respectively.

CPI-1612 is a highly potent, orally active EP300/CBP histone acetyltransferase (HAT) inhibitor with an IC₅₀ of 8.1 nM for EP300 HAT. CPI-1612 has an anticancer activity.

JQAD1 is a EP300 PROTAC degrader. JQAD1 selectively targets EP300 and induces its degradation via the CRBN-dependent proteasomal pathway. JQAD1 reduces the levels of H3K27ac and the expression of MYCN. JQAD1 induces apoptosis (apoptosis) and inhibits cancer cell growth. JQAD1 exerts anti-neuroblastoma effects in vivo in a CRBN-dependent manner. JQAD1 can be used for the research of neuroblastoma.

GNE-272 is a potent and selective CBP/EP300 inhibitor with IC₅₀ values of 0.02, 0.03 and 13 μM for CBP, EP300 and BRD4, respectively. GNE-272 is also a selective in vivo probe for CBP/EP300.

NEO2734 (EP31670) is an orally active dual p300/CBP and BET bromodomain selective inhibitor, with IC₅₀ values of <30 nM for both p300/CBP and BET bromodomains. NEO2734 is active in SPOP mutant and wild-type prostate cancer.

GNE-207 is a potent, selective and orally bioavailable inhibitor of the bromodomain of CBP, with an IC₅₀ of 1 nM, exhibits a selectively index of >2500-fold against BRD4 (1). GNE-207 shows excellent CBP potency, with an EC₅₀ of 18 nM for MYC expression in MV-4-11 cells.

Procyanidin B3 is a natural product with antioxidant activity and oral bioavailability, possessing good blood-brain barrier penetration. Procyanidin B3 is a selective inhibitor of histone acetyltransferase (HAT). By inhibiting p300 HAT-mediated acetylation of the androgen receptor (androgen receptor). Procyanidin B3 alleviates intervertebral disc degeneration (IVDD) by inhibiting the formation of the TLR4/MD-2 complex. Procyanidin B3 can be used in research on prostate cancer and arthritis.

L002 is a potent, cell permeable, reversible and specific acetyltransferase p300 (KAT3B) inhibitor with an IC₅₀ of 1.98 μM. L002 binds the acetyl-CoA pocket and competitively inhibits the FATp300 catalytic domain, blocks histone acetylation and p53 acetylation, and inhibits STAT3 activation. L002 has the potential for hypertension-induced cardiac hypertrophy and fibrogenesis treatment.

Histone Acetyltransferase Inhibitor II (compound 2c) is a potent, selective and cell permeable p300 histone acetyltransferase inhibitor, with an IC₅₀ of 5 µM. Histone Acetyltransferase Inhibitor II shows anti-acetylase activity in mammalian cells.

Curcumin-d₆ (Diferuloylmethane-d₆ ) is deuterium labeled Curcumin (HY-N0005). Curcumin (Diferuloylmethane), a natural phenolic compound, is a p300/CREB-binding protein-specific inhibitor of acetyltransferase, represses the acetylation of histone/nonhistone proteins and histone acetyltransferase-dependent chromatin transcription. Curcumin is a photosensitizer against microorganisms. Curcumin shows inhibitory effects on NF-κB and MAPKs, and has diverse pharmacologic effects including anti-inflammatory, antioxidant, antiproliferative and antiangiogenic activities. Curcumin induces stabilization of Nrf2 protein through Keap1 cysteine modification.