Histone acetyltransferases (HATs) have critical roles in cellular functions and are involved in the regulation of gene transcription, differentiation, and proliferation. The HAT Activity Colorimetric Assay Kit offers a convenient, non-radioactive system for a rapid and sensitive detection of HAT activity in mammalian samples. The kit includes an active Nuclear Extract (NE) to be used as a positive control, HAT cofactor, acetyl-CoA, and all downstream cofactors and substrates. Acetylation of a peptide substrate by active HAT releases the free form of CoA, which then serves as an essential coenzyme for producing NADH. NADH can easily be detected spectrophotometrically upon reacting with a soluble tetrazolium dye. The detection can be continuous, and therefore, is suitable for kinetic studies. The kit provides all reagents and a simple, straightforward protocol for a complete assay.
Features and Benefits
Sensitive and reliable assay
Utilizes colorimetric methods
Sample type: cell and tissue lysates
Species reactivity: mammalian
Suitable for individual tests or high throughput assays and kinetic studies
Easy and simple procedure: combine nuclear extract or protein sample with reagents, incubate, and read absorbance
Convenient 96-well microplate format
Continuously measures HAT activity; suitable for kinetic studies
No HDAC interference; crude nuclear extract can be used directly
We describe a simple method for the determination of heme protein reduction potentials. We use the method to determine the reduction potentials for the PAS-A domains of the regulatory heme proteins human NPAS2 (Em=-115 mV ± 2 mV, pH 7.0)
Nihon rinsho. Japanese journal of clinical medicine, 71(12), 2091-2096 (2014-01-21)
Aging alters a broad spectrum of physiological, endocrine, and behavioral rhythms, and the close relationship between age-associated disease and disrupted circadian rhythms has been shown. Circadian rhythms are regulated by a set of clock genes and mutations in clock genes
Nihon rinsho. Japanese journal of clinical medicine, 71(12), 2153-2157 (2014-01-21)
IgE-mediated immediate-type allergic reactions in the skin show a diurnal rhythm, although the regulatory mechanisms are poorly understood. In mammals, the circadian rhythms are driven by the circadian clock system consisting of the light-entrained central clock located in the suprachiasmatic
Short-chain fatty acids (SCFAs) acetate, propionate, and butyrate are produced in large quantities by the gut microbiome and contribute to a wide array of physiological processes. While the underlying mechanisms are largely unknown, many effects of SCFAs have been traced
Nihon rinsho. Japanese journal of clinical medicine, 71(12), 2171-2178 (2014-01-21)
Mood disorders show a common feature of distorted cycling of biological systems, manifesting, for example, as diurnal mood variation in depression, phasic time course in bipolar disorder, and seasonal mood swing in seasonal affective disorder. Accordingly, circadian dysfunction has been
Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.