acetylation

Histone Acetyltransferase Inhibitor II is a selective and cell permeable inhibitor of p300 histone acetyltransferase(IC50 : 5 μM).with anti-acetylase activity in mammalian cells.

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

1-Naphthohydroxamic acid (Compound 2) is a potent and selective HDAC8 inhibitor with an IC50 of 14 μM, demonstrating greater selectivity for HDAC8 than class I HDAC1 and class II HDAC6 (IC50 >100 μM). It does not increase global histone H4 acetylation or reduce total intracellular HDAC activity but can induce tubulin acetylation[1][2].

CMS-121, a quinolone derivative, is an orally active acetyl-CoA carboxylase 1 (ACC1) inhibitor. CMS-121 protects HT22 cells against ischemia and oxidative damage (EC50: 7 nM and 200 nM). CMS-121 shows strong neuroprotective, antioxidative, anti-inflammatory, and renoprotective activities.

Tenovin-6 is a p53 transcriptional activity agonist.

Tenovin-1 inhibits protein-deacetylating activities of SirT1 and SirT2 and protects against MDM2-mediated p53 degradation, which involves ubiquitination.

OSS_128167 (SIRT6-IN-1) is a specific SIRT6 inhibitor, and for SIRT6(IC50=89 μM), SIRT1(IC50=1578 μM) and SIRT2(IC50=751 μM).

CXD101 is a novel class I-selective HDACi (HDAC1 (IC50 : 63nM), HDAC2 (IC50 :570nM), HDAC3 (IC50 :550nM)). CXD101(CXD-101) has no activity against HDAC class II

Tenovin-6 Hydrochloride is an SIRT1, SIRT2 and HDAC8 inhibitor(IC50s of 21 μM, 10 μM, and 67 μM for SirT1, SirT2, and SirT3, respectively), and is also a potent p53 activator .

Tri-GalNAc-COOH acetylation represents the acetylated derivative of tri-galactosamine (tri-GalNAc-COOH), utilized in the synthesis of lysosome targeting chimeras (LYTAC).

OSMI-1 is an O-GlcNAc transferase (OGT) inhibitor (IC50=2.7 μM) that is orally active and cell-permeable. OSMI-1 inhibits protein O-GlcNA acetylation without qualitatively altering cell-surface N- or O- linked glycans.

R306465 (JNJ-16241199) is an orally active and selective class I histone deacetylase (HDAC 1) inhibitor with an IC50 of 3.3 nM. R306465 has a broad spectrum of antitumor activity, can induce histone 3 acetylation, and induce apoptosis, and can be used to study solid tumors and hematological malignancies.

CGP 3466B maleate (Omigapil maleate) is an orally bioavailable GAPDH nitrosylation inhibitor. Omigapil maleate abrogates Aβ1-42-induced tau acetylation, memory impairment, and locomotor dysfunction in mice. Omigapil maleate has the potential for the research of Alzheimer's disease. Omigapil maleate (CGP3446B maleate) is a apoptosis inhibitor. Omigapil maleate can be used for the research of congenital muscular dystrophy (CMD).

SIRT6-IN-5(SIRT6 inhibitor 5) is a potent and selective SIRT6 inhibitor with an IC50 value of 34 μM.SIRT6-IN-5 is immunosuppressive and chemo-sensitizing, increases H3K9 acetylation and glucose uptake in cultured cells, and reduces T-cell proliferation.

Crebinostat is a potent histone deacetylase (HDAC) inhibitor, targeting HDAC1, HDAC2, HDAC3, and HDAC6 with IC50s of 0.7 nM, 1.0 nM, 2.0 nM, and 9.3 nM, respectively. It increases the density of synapsin-1 punctae along dendrites in neurons in vitro, modulates chromatin-mediated neuroplasticity, and enhances memory in mice. Additionally, Crebinostat induces histone H3 and H4 acetylation and enhances the expression of Egr1, a cAMP-responsive element binding protein (CREB) target gene.

RK-9123016 is a SIRT2 inhibitor. RK-9123016 increases the acetylation level of eukaryotic translation initiation factor 5A (eIF5A), a physiological substrate of SIRT2, and reduces cell viability of human breast cancer cells accompanied with a decrease in c-Myc expression.

Triciferol acts as a multiple ligand with combined VDR agonist and HDAC antagonist activities. Triciferol binds directly to the VDR ( IC 50 =87 nM), and functions as an agonist with 1,25D-like potency on several 1,25D target genes. Triciferol induces marked tubulin hyperacetylation, and augments histone acetylation. Triciferol also exhibits efficacious antiproliferative and cytotoxic activities in cancer cell models in vitro [1].

D-Panthenol (D-Pantothenyl alcohol) is an alcoholic analogue of D-pantothenic acid and cholinergic agent. D-Panthenol acts as a precursor of coenzyme A necessary for acetylation reactions and is involved in the synthesis of acetylcholine. Although the exact mechanism of the actions of D-Panthenol is unclear, it may enhance the effect of acetylcholine. D-Panthenol acts on the gastrointestinal tract and increases lower intestinal motility. It is also applied topically to the skin to relieve itching and to promote healing.

Nepsilon-Acetyl-L-lysine, a derivative of lysine, is a chemical compound characterized by the acetylation of the epsilon amino group of the lysine residue [Nepsilon-Ac-Lys].

N8-Acetylspermidine dihydrochloride, a polyamine, can be produced in mammals through the acetylation of spermidine by spermidine spermine N1-acetyltransferase (SSAT), followed by subsequent oxidation by [propylamine transferase].

Cyclo-L-Trp-L-Trp is a broad-spectrum antifungal. It also induces a high degree of acetylation of histones.

MS182 (compound 11), an acetylation targeting chimera (AceTAC), incorporates p53 Y220C stabilizers with p300 CBP binders, connected via a linker. This design enables MS182 to selectively form a ternary complex with p300 CBP acetyltransferase and the mutant p53 Y220C, subsequently catalyzing specific acetylation of lysine at position 382 in a time- and concentration-dependent manner, achieving an ACE 50 of 1.52 μM. Additionally, MS182 demonstrated significant bioavailability in mice, with GI 50 values recorded at 2.16 μM for BxPC3 (p53 Y220C -) and 1.83 μM for NUGC (p53 Y220C +).

HDAC-IN-7, an analogue of Tucidinostat (Chidamide), is a HDAC inhibitor. HDAC-IN-7 inhibits acetylation of histone protein H3 and induces apoptosis in human colon cancer cell lines[1].

NEP(1-40), N-terminal uncapped, is an analog of NEP(1-40) without acetylation at the N-terminus. NEP(1-40) acts as a peptide antagonist of the Nogo-66 receptor (NgR).