Human Transmembrane protein 55A (TMEM55A) ELISA Kit

TMEM55A catalyzes the degradation of phosphatidylinositol 4,5-bisphosphate (PtdIns-4,5-P2) by removing the 4-phosphate.The deduced 300-amino acid protein contains a central Cx (5) R phosphatase catalytic motif and 2 transmembrane domains near its C terminus, a characteristic of lysosomal transmembrane proteins. RNA dot blot analysis detected expression in all tissues examined. Fluorescence-tagged TMEM55A localized with membrane markers of late endosomes or lysosomes.Ungewickell et al. (2005) assayed the phosphatase activity of TMEM55A synthesized in insect cells and found that it specifically catalyzed removal of the 4-phosphate from PtdIns-4,5-P2. It showed no activity toward other phosphatidylinositol substrates or inositol phosphates tested.

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Human Transmembrane protein 55A (TMEM55A) ELISA Kit has high sensitivity and excellent specificity for detection of Human TMEM55A. No significant cross-reactivity or interference between Human TMEM55A and analogues was observed.

This Human Transmembrane protein 55A (TMEM55A) ELISA Kit employs a two-site sandwich ELISA to quantitate TMEM55A in samples. An antibody specific for TMEM55A has been pre-coated onto a microplate. Standards and samples are pipetted into the wells and anyTMEM55A present is bound by the immobilized antibody. After removing any unbound substances, a biotin-conjugated antibody specific for TMEM55A 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 TMEM55A bound in the initial step. The color development is stopped and the intensity of the color is measured.

• 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.