Human Dual specificity protein phosphatase 9 (DUSP9) ELISA Kit

SKU: AE46439HU

Size: 96T. Other sizes are also available.

Species Reactivity: Human (Homo sapiens)

UniProt: Q99956

Abbreviation: DUSP9

Alternative Names: MKP-4; MKP4; OTTHUMP00000025953|map kinase phosphatase 4|serine/threonine specific protein phosphatase

Application: ELISA

Range: 0.312-20 ng/mL

Sensitivity: 0.117 ng/mL

Test principle: This assay employs a two-site sandwich ELISA to quantitate DUSP9 in samples. An antibody specific for DUSP9 has been pre-coated onto a microplate. Standards and samples are pipetted into the wells and anyDUSP9 present is bound by the immobilized antibody. After removing any unbound substances, a biotin-conjugated antibody specific for DUSP9 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 DUSP9 bound in the initial step. The color development is stopped and the intensity of the color is measured.

Product Overview: DUSP9 is a member of the dual specificity protein phosphatase subfamily. These phosphatases inactivate their target kinases by dephosphorylating both the phosphoserine/threonine and phosphotyrosine residues. They negatively regulate members of the mitogen-activated protein (MAP) kinase superfamily (MAPK/ERK, SAPK/JNK, p38), which is associated with cellular proliferation and differentiation. Different members of the family of dual specificity phosphatases show distinct substrate specificities for various MAP kinases, different tissue distribution and subcellular localization, and different modes of inducibility of their expression by extracellular stimuli. This gene product shows selectivity for members of the ERK family of MAP kinases, is expressed only in placenta, kidney, and fetal liver, and is localized to the cytoplasm and nucleus.

Stability: The stability of ELISA kit is determined by the loss rate of activity. The loss rate of this kit is less than 5% within the expiration date under appropriate storage condition. The loss rate was determined by accelerated thermal degradation test. Keep the kit at 37°C for 4 and 7 days, and compare O.D.values of the kit kept at 37°C with that of at recommended temperature. (referring from China Biological Products Standard, which was calculated by the Arrhenius equation. For ELISA kit, 4 days storage at 37°C can be considered as 6 months at 2 - 8°C, which means 7 days at 37°C equaling 12 months at 2 - 8°C).