Human u-Plasminogen Activator (uPA)/Urokinase Biotinylated Antibody

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Product Details
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Human u-Plasminogen Activator (uPA)/Urokinase Biotinylated Antibody Summary

Species Reactivity
Detects human u-Plasminogen Activator in ELISAs and Western blots. In sandwich immunoassays, less than 0.2% cross‑reactivity with rhThrombin, rhPlasminogen and htPA is observed.
Polyclonal Goat IgG
Antigen Affinity-purified
Mouse myeloma cell line NS0-derived recombinant human uPA (R&D Systems, Catalog # 1310-SE)
Accession # P00749
Lyophilized from a 0.2 μm filtered solution in PBS with BSA as a carrier protein.


Recommended Concentration
Western Blot
0.1 µg/mL
Recombinant Human u-Plasminogen Activator (uPA)/Urokinase (Catalog # 1310-SE)

Human u-Plasminogen Activator/Urokinase Sandwich Immunoassay

Recommended Concentration
ELISA Detection (Matched Antibody Pair)
0.1-0.4 µg/mL 

Use in combination with:

Capture Reagent: Human u-Plasminogen Activator (uPA)/
Urokinase Catalytic Domain Antibody (Catalog # MAB1310)

Standard: Recombinant Human u-Plasminogen Activator/Urokinase, CF (Catalog # 1310-SE)

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Reconstitution Calculator

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.


Preparation and Storage

Reconstitute at 0.2 mg/mL in sterile PBS.
Reconstitution Buffer Available
Reconstitution Buffer 1 (PBS)
Catalog #
Size / Price
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: u-Plasminogen Activator (uPA)/Urokinase

uPA is a serine protease with an extremely limited substrate specificity, cleaving the sequence Cys-Pro-Gly-Arg560-Val561-Val-Gly-Gly-Cys in plasminogen to form plasmin (1). uPA is a potent marker of invasion and metastasis in a variety of human cancers associated with breast, stomach, colon, bladder, ovary, brain and endometrium (2). For example, the combination (both low vs. either or both high) of uPA and its inhibitor, plasminogen activator inhibitor-1 (PAI-1), outperforms the single factors as well as other traditional prognostic factors with regard to risk group assessment for breast cancer, particularly in node-negative breast cancer (3). The human uPA is initially synthesized as 431 amino acid precursor with a N-terminal signal peptide (20 residues) (4 - 6). The single chain molecule is processed into a disulfide-linked two-chain molecule. The B chain starting at Ile179 corresponds to the catalytic domain. Two forms of the A chain exist, one starting at Ser21 (the long form) and the other at Lys156 (the short form). The resulting two-chain forms have different molecular weights (MW). The B chain is common for both forms whereas the long and short A chains are unique to the high and low MW forms, respectively. The long A chain contains an EGF-like domain, which is responsible for binding of the uPA receptor (uPAR).

  1. Ellis, V. (2004) in Handbook of Proteolytic Enzymes. Barrett, A.J. et al. eds., Academic Press, San Diego, pp.1677.
  2. Duffy, M.J. (2002) Biochem. Soc. Trans. 30:207.
  3. Harbeck, N. et al. (2002) Clin. Breast Cancer 3:196.
  4. Riccio, A. et al. (1985) Nucleic Acids Res. 13:2785.
  5. Nagai, M. et al. (1985) Gene 36:183.
  6. Jacobs, P. et al. (1985) DNA 4:139.
Long Name
Urokinase-type Plasminogen Activator
Entrez Gene IDs
5328 (Human); 18792 (Mouse); 102135886 (Cynomolgus Monkey)
Alternate Names
ATF; EC 3.4.21; EC; plasminogen activator, urokinase; PLAU; uPA; u-PA; uPlasminogen Activator; u-Plasminogen Activator; urinary; Urokinase; urokinase-type plasminogen activator

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