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Human Urokinase / PLAU / UPA ELISA Pair Set

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Human PLAU/uPA Materials provided
Capture Ab:0.25 mg/mL of mouse anti-UPA monoclonal antibody, Dilute to a working concentration of 1.5 μg/mL in CBS before coating.
Detection Ab:0.25 mg/mL mouse anti-UPA monoclonal antibody conjugated to horseradish-peroxidase (HRP). Dilute to working concentration of 0.5 μg/mL in detection antibody dilution buffer before use.
Standard:Each vial contains 25 ng of recombinant UPA. Reconstitute standard powder with 1 mL detection antibody dilution buffer. After reconstitution, store at -20℃ to -80℃ in a manual defrost freezer. A seven-point standard curve usi ng 2-fold serial dilutions in sample dilution buffer, and a high standard of 1000 pg/mL is recommended.
Human PLAU/uPA Specificity
Human PLAU/uPA Sensitivity
The minimum detectable dose of Human Urokinase / PLAU / UPA was determined to be approximately 15.625 pg/ml. This is defined as at least three times standard deviations above the mean optical density of 10 replicates of the zero standard.
Human PLAU/uPA Principle of the product
The human Urokinase / PLAU / UPA ELISA Pair Set is for the quantitative determinationof human Urokinase / PLAU / UPA.
This ELISA Pair Set contains the basic components required for the development of sandwich ELISAs.
The Sino Biological ELISA Pair Set is a solid phase sandwich ELISA (Enzyme-Linked Immunosorbent Assay). It utilizes a monoclonal antibody specific for Urokinase / PLAU / UPA coated on a 96-well plate. Standards and samples are added to the wells, and any Urokinase / PLAU / UPA present binds to the immobilized antibody. The wells are washed and a horseradish peroxidase conjugated mouse anti-Urokinase / PLAU / UPA monoclonal antibody is then added, producing an antibody-antigen-antibody "sandwich". The wells are again washed and TMB substrate solution is loaded, which produces color in proportion to the amount of Urokinase / PLAU / UPA present in the sample. To end the enzyme reaction, the stop solution is added and absorbances of the microwell are read at 450 nm.
Human PLAU/uPA Storage
Capture Antibody: Aliquot and store at -20℃ to -80℃ for up to 6 months from date of receipt. Avoid repeated freeze-thaw cycles.
Detection Antibody: Protect it from prolonged exposure to light. Aliquot and store at -20℃ to -80℃ and for up to 6 months from date of receipt. Avoid repeated freeze-thaw cycles.
Standard: Store lyophilized Standard at -20℃ to -80℃ for up to 6 months from date of receipt. Aliquot and store the reconstituted Standard at -80℃ for up to 1 month. Avoid repeated freeze-thaw cycles.
Human PLAU/uPA ELISA Pair Set Standard Curve
Human Urokinase / PLAU / UPA ELISA Pair Set
Urokinase/PLAU Background

Plasminogen activator, urokinase, also known as PLAU and uPA, is a serine protease which converts plasminogen to plasmin, a broad-spectrum protease active on extracellular matrix (ECM) components. It is involved in complement activation, cell migration, wound healing, and generation of localized extracellular proteolysis during tissue remodelling, pro-hormone conversion, carcinogenesis and neoplasia. Like many components of the blood coagulation, fibrinolytic and complement cascades, uPA has a modular structure, including three conserved domains: a growth factor-like domain (GFD, residues 1-49), a kringle domain (residues 50-131), linked by an interdomain linker or "connecting peptide" (CP, residues 132-158) to the serine protease domain (residues 159-411). uPA and its receptor (uPAR) have been implicated in a broad spectrum of pathophysiological processes, including fibrinolysis, proteolysis, inflammation, atherogenesis and plaque destabilization, all of which are involved in the pathogenesis of MI (myocardial infarction). The role of uPA is not only linked to its action as an enzyme. In fact, the mere binding of uPA on the cell surface also brings about two events that broaden the spectrum of its biological functions: (1) a conformational change of the receptor, which, in turn, affects its interaction with other proteins; (2) a signal transduction which modulates the expression of apoptosis-related genes. Besides its applications as a thrombolytic agent and as a prognostic marker for tumors, uPA may provide the basis for other therapies, as the structure of the receptor-binding domain of uPA has become a model for the design of anti-cancer molecules. Because of the causal involvment of uPA in cancer invasion and metastasis, the blockade of uPA interactions and activity with specific inhibitors is of interest for novel strategies in cancer therapy.

Human Urokinase/PLAU References
  • Crippa MP. (2007) Urokinase-type plasminogen activator. Int J Biochem Cell Biol. 39(4): 690-4.
  • Kunamneni A, et al. (2008) Urokinase-a very popular cardiovascular agent. Recent Pat Cardiovasc Drug Discov. 3(1): 45-58.
  • Vincenza Carriero M, et al. (2009) Structure, function and antagonists of urokinase-type plasminogen activator. Front Biosci. 14: 3782-94.
  • Xu J, et al. (2010) Association of putative functional variants in the PLAU gene and the PLAUR gene with myocardial infarction. Clin Sci (Lond). 119(8): 353-9.
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    Catalog: SEK10815-15
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