Tissue-type plasminogen activator (tPA) circulating in plasma exists in free forms as well as in tPA-inhibitor complexes. The underlying biochemical mechanism governing coagulation and fibrinolysis involves a controlled cascade of proteolytic reactions characterized by the conversion of serine protease zymogens to enzymes. Depending upon the initiating stimulus, the physiological outcome of these reactions is blood clot formation/dissolution. The relative concentrations of serine protease zymogen, enzyme, or enzyme-inhibitor complex in circulation will vary in accord with the state of vascular damage. Many conventional antigen-based clotting factor-specific immunoassays do not distinguish between zymogen and enzyme. Applications: Suitable for use in ELISA, Immunohistochemistry, and Western Blot. Other applications not tested. Recommended Dilution: Optimal dilutions to be determined by the researcher. Storage and Stability: Store product at 4C if to be used immediately within two weeks. For long-term storage, aliquot to avoid repeated freezing and thawing and store at -20C. Aliquots are stable at -20C for 12 months after receipt. Dilute required amount only prior to immediate use. Further dilutions can be made in assay buffer. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Note: Applications are based on unconjugated antibody.
Purity:
Purified by Protein A affinity chromatography.
Form:
Supplied as a liquid in PBS, pH 7.2. No preservative added. No stabilizing proteins added. Labeled with Biotin.
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