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AB108916

Urokinase type Plasminogen Activator Human Chromogenic Activity Assay Kit - Direct Assay

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(1 Publication)

Urokinase type plasminogen activator (uPA) is a highly restricted serine protease that converts the zymogen plasminogen to active plasmin, a broad-spectrum serine proteinase capable of degrading most of the major protein components of the extracellular matrix.

View Alternative Names

Urokinase-type plasminogen activator, U-plasminogen activator, uPA, PLAU

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Functional Studies - Urokinase type Plasminogen Activator Human Chromogenic Activity Assay Kit - Direct Assay (AB108916)
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Supplier Data

Functional Studies - Urokinase type Plasminogen Activator Human Chromogenic Activity Assay Kit - Direct Assay (AB108916)

uPA Chromogenic Activity Standard Curve (For Low uPA Activity Samples)

Functional Studies - Urokinase type Plasminogen Activator Human Chromogenic Activity Assay Kit - Direct Assay (AB108916)
  • FuncS

Supplier Data

Functional Studies - Urokinase type Plasminogen Activator Human Chromogenic Activity Assay Kit - Direct Assay (AB108916)

uPA Chromogenic Activity Standard Curve (For High uPA Activity Samples)

Key facts

Detection method

Colorimetric

Sample types

Plasma, Cell culture supernatant, Serum

Reacts with

Human

Assay type

Enzyme activity (quantitative)

Sensitivity

< 0.061 IU/mL

Assay Platform

Microplate reader

Reactivity data

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Product details

Urokinase type plasminogen activator (uPA) is a highly restricted serine protease that converts the zymogen plasminogen to active plasmin, a broad-spectrum serine proteinase capable of degrading most of the major protein components of the extracellular matrix. Binding of uPA to its receptor and subsequent uPA mediated pericellular proteolysis are involved in many process including cell migration and tissue remodeling in angiogeenesis, atherogenesis, tumor cell metastasis, and ovulation. High level of uPA is a poor prognostic marker for aggressive breast cancer, aggressive prostate cancer, bladder cancer and gastric cancer.

ab108916 uPA Human Chromogenic Activity Assay Kit is developed to determine Human uPA activity in plasma and cell culture supernatants. The amidolytic activity of uPA is quantitated using a highly specific uPA substrate releasing a yellow para-nitroaniline (pNA) chromophore. The change in absorbance of the pNA at 405 nm is directly proportional to the uPA enzymatic activity.

The entire kit may be stored at -20°C for long term storage before reconstitution - Avoid repeated freeze-thaw cycles.

What's included?

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Properties and storage information

Shipped at conditions
Blue Ice
Appropriate short-term storage conditions
-20°C
Appropriate long-term storage conditions
Multi
Storage information
Please refer to protocols

Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

Urokinase also known as urokinase-type plasminogen activator (uPA) is a serine protease with a molecular mass of approximately 54 kDa. It is expressed in various tissues including the kidneys liver and blood vessels. Urokinase initially forms as pro-urokinase an inactive precursor that can convert into the active enzyme. Researchers often use assays like the direct assay to measure urokinase activity due to its role in breaking down fibrin and modulating cell adhesion and migration.
Biological function summary

Something particularly interesting about urokinase is its role in converting plasminogen to plasmin a critical enzyme in the process of fibrinolysis. Moreover it is part of a larger enzymatic complex involving the urokinase receptor (uPAR) which localizes plasminogen activation to cell surfaces. This complex mediates extracellular matrix degradation aiding in important cellular processes like tissue remodeling and wound healing.

Pathways

Urokinase plays a critical role in the fibrinolytic pathway which involves the breakdown of blood clots. It also interacts with the extracellular matrix pathway by activating plasminogen which can degrade matrix components. In these pathways urokinase closely interacts with proteins such as plasmin and its inhibitor plasminogen activator inhibitor-1 (PAI-1) which regulate the activity and localization of proteolytic events.

Urokinase is strongly linked to conditions such as deep vein thrombosis and cancer metastasis. Its overexpression or dysregulation often leads to excessive tissue degradation influencing metastasis progression. Urokinase is connected to the urokinase receptor (uPAR) in cancer facilitating cancer cell invasion and migration. Understanding its behavior in these contexts is critical for developing therapeutic strategies and targeting treatments against these diseases.

Product protocols

For this product, it's our understanding that no specific protocols are required. You can visit:

Target data

Specifically cleaves the zymogen plasminogen to form the active enzyme plasmin.
See full target information Urokinase

Publications (1)

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PloS one 17:e0273811 PubMed36174075

2022

Prognostic significance of the urokinase plasminogen activator system in tissue and serum of dogs with appendicular osteosarcoma.

Applications

Unspecified application

Species

Unspecified reactive species

Arata Matsuyama,Geoffrey A Wood,Rachael Speare,Courtney R Schott,Anthony J Mutsaers
View all publications

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Urokinase type Plasminogen Activator Human Chromogenic Activity Assay Kit

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