Human N-acetylglucosamine-1-phosphodiester alpha-N-acetylglucosaminidase (NAGPA) ELISA Kit

Hydrolases are transported to lysosomes after binding to mannose 6-phosphate receptors in the trans-Golgi network. NAGPA encodes the enzyme that catalyzes the second step in the formation of the mannose 6-phosphate recognition marker on lysosomal hydrolases. Commonly known as 'uncovering enzyme' or UCE, this enzyme removes N-acetyl-D-glucosamine (GlcNAc) residues from GlcNAc-alpha-P-mannose moieties and thereby produces the recognition marker. The encoded preproprotein is proteolytically processed by furin to generate the mature enzyme, a homotetramer of two disulfide-linked homodimers. Mutations in NAGPA are associated with developmental stuttering in human patients

NAGPA; APAA; UCE; alpha-N-acetylglucosaminyl phosphodiesterase; lysosomal alpha-N-acetylglucosaminidase; mannose 6-phosphate-uncovering enzyme; phosphodiester alpha-GlcNAcase

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Human N-acetylglucosamine-1-phosphodiester alpha-N-acetylglucosaminidase (NAGPA) ELISA Kit has high sensitivity and excellent specificity for detection of Human NAGPA. No significant cross-reactivity or interference between Human NAGPA and analogues was observed.

This Human N-acetylglucosamine-1-phosphodiester alpha-N-acetylglucosaminidase (NAGPA) ELISA Kit employs a two-site sandwich ELISA to quantitate NAGPA in samples. An antibody specific for NAGPA has been pre-coated onto a microplate. Standards and samples are pipetted into the wells and anyNAGPA present is bound by the immobilized antibody. After removing any unbound substances, a biotin-conjugated antibody specific for NAGPA is added to the wells. After washing, Streptavidin conjugated Horseradish Peroxidase (HRP) is added to the wells. Following a wash to remove any unbound avidin-enzyme reagent, a substrate solution is added to the wells and color develops in proportion to the amount of NAGPA bound in the initial step. The color development is stopped and the intensity of the color is measured.

NAGPA; APAA; UCE; alpha-N-acetylglucosaminyl phosphodiesterase; lysosomal alpha-N-acetylglucosaminidase; mannose 6-phosphate-uncovering enzyme; phosphodiester alpha-GlcNAcase

• Do not mix components from different kit lots or use reagents beyond the kit expiration date.• Allow all reagents to warm to room temperature for at least 30 minutes before opening.• Pre-rinse the pipet tip with reagent, use fresh pipet tips for each sample, standard and reagent to avoid contamination.• Unused wells must be kept desiccated at 4 °C in the sealed bag provided.• Mix Thoroughly is very important for the result. It is recommended using low frequency oscillator or slight hand shaking every 10 minutes.• It is recommended that all samples and standards be assayed in duplicate or triplicate.