β-NAG Lysosomal enzyme detection

β-NAG Lysosomal enzyme detection

β-N-Acetylglucosaminidase (β-NAG), also known as β-Hexosaminidase (EC 3.2.1.52), is a vital lysosomal enzyme present in a wide range of tissues, including the kidneys, liver, lungs, and mast cells. Elevated β-NAG activity is linked to several pathological conditions such as Tay-Sachs and Sandhoff disease, inflammatory processes, and abnormal immune responses. Detecting and quantifying this enzyme with precision in biological samples is crucial for both diagnostic and research purposes. The β-NAG Activity Fluorometric Assay offers a reliable and efficient method to meet this need.

This fluorometric assay leverages a non-fluorescent substrate, 4-Methylumbelliferyl N-acetyl-β-D-glucosaminide (4-MUAG), which is cleaved by β-NAG to release the fluorescent molecule 4-Methylumbelliferone (4-MU). The resulting fluorescence can be accurately measured at an excitation wavelength of 365 nm and emission at 445 nm. The assay is suitable for a wide array of sample types, including tissues, cultured cells, serum, and urine. It is both fast and sensitive, with a linear detection range achieved in just 30 minutes at 37˚C using as little as 20 µL of sample, making it ideal for research settings where timely and precise enzyme monitoring is essential.

Designed for high-throughput applications, this assay kit can be readily automated using HTS liquid handling systems, enabling the processing of thousands of samples per day with consistent accuracy. The kit includes all necessary reagents, such as substrate, standard, positive control, stop reagent, and assay buffer, and is shipped on ice to preserve stability. For best results, the assay requires kinetic measurements with synchronized reagent addition and proper mixing—multi-channel pipettors are recommended to ensure reproducibility. With a 12-month shelf life and simple protocol, the β-NAG Fluorometric Assay is a powerful tool for detecting lysosomal enzyme activity in biomedical research.