Description
Key facts
Detection method:Fluorescent,
Sample types:Purified protein, Inhibitor compounds,
Assay Platform:Microplate reader
Product details:
Acetyltransferase Activity Assay Kit (Fluorometric) (ab204536) is a homogeneous mix-and-read fluorescent assay for the determination of any acetyl-CoA dependent acetyltransferase activity. It is suitable for end-point or kinetic read options, which is ideal for determining mechanism of action, kinetics, and screening candidate compounds. The assay is amendable to HTS and miniaturization.
This assay is a complete kit for the screening of candidate compounds that can alter normal acetyltransferase activity. For use with purified
in vitro
samples.
Acetylation is an important covalent molecular modification. Originally identified as the method by which certain bacteria were able to deactivate anti-microbial compounds, acetylation is now also known as an important partitioning and signaling modification.
Acetyltransferases are enzymes that covalently transfer an acetyl group from a donor molecule (Acetyl CoA) to an acceptor. Acetyl CoA serves as a universal donor while the acceptor varies with the acetyltransferase. Acceptors include histones, kinases, transcription factors, receptors, neurotransmitter precursors like choline and serotonin, and anti-microbial agents like chloramphenicol and fluoroquinones. Acetylation can signal an increase or decrease in activity based on the context of the message. Frequently located at critical junctions in metabolic pathways, Acetyltransferases and their regulation have become attractive therapeutic targets to treat everything from insomnia to cancer.
Properties and Storage Information:
Shipped at conditions-Dry Ice, Appropriate short-term storage conditions-Multi, Appropriate long-term storage conditions-Multi, Storage information-Please refer to protocols
Supplementary Information:
This supplementary information is collated from multiple sources and compiled automatically.
ACAT2 also known as Acetyl-CoA acetyltransferase is an enzyme that plays a role in lipid metabolism catalyzing the conversion of two molecules of acetyl-CoA into acetoacetyl-CoA. It shares functionality with other acetyltransferases such as chloramphenicol acetyltransferase. ACAT2 has a molecular mass of approximately 41 kDa. Expression of ACAT2 is mainly in the liver and the cytosol of cells involved in sterol regulatory processes. It functions as a homotetramer and is essential in maintaining cellular levels of acetyl-CoA and related metabolites.
Biological function summary
This enzyme facilitates the synthesis of cholesterol and ketone bodies essential processes for cellular energy balance. ACAT2 works as an independent enzyme rather than as a component of a multi-enzyme complex unlike some other acetyltransferases. By managing acetyl-CoA levels it supports energy homeostasis and lipogenesis providing substrates for downstream processes that are critical for sustaining cellular function and response to energy demands.
Pathways
The acetyl-transfer reactions catalyzed by ACAT2 are integral to the cholesterol biosynthesis and ketogenesis pathways. These pathways are important for energy balance and lipid modification. Within these pathways ACAT2 acts in close relation with HMG-CoA synthase an important player in cholesterol biosynthesis. The enzyme’s actions provide acetoacetyl-CoA which is a substrate for the production of HMG-CoA highlighting its role in maintaining metabolic flux.
ACAT2's role in cholesterol metabolism links it to atherosclerosis and non-alcoholic fatty liver disease (NAFLD). Disruption in its function can lead to elevated levels of cholesterol and triglycerides risk factors for atherosclerosis. In NAFLD ACAT2 expression may influence lipid accumulation in the liver contributing to disease pathogenesis. Its connection with other proteins like LDL receptor and apolipoprotein B through cholesterol metabolism emphasizes its potential as a therapeutic target for managing lipid-related disorders.
