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Recombinant Human PAI-1

Product Type
Recombinant Protein

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Datasheet Datasheet Datasheet
SDS Safety Datasheet SDS
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PAI-1 (plasminogen activator inhibitor-1) is a serine protease inhibitor and member of the serpin family, which acts as the primary inhibitor of tissue plasminogen activator (tPA) and urokinase plasminogen activator (uPA), and hence fibrinolysis. Increased levels of PAI-1 are associated with diabetes, cardiovascular disease and an increased occurrence of thrombosis in obesity, and can be induced by obesity related factors including insulin, glucose and VLDL (very-low-density lipoprotein).

Target Species
Product Form
Purified recombinant protein - lyophilized
Reconstitute with 100 ul distilled water.
Care should be taken during reconstitution as the protein may appear as a film at the bottom of the vial. Bio-Rad recommend that the vial is gently mixed after reconstitution. For extended sotrage, the addition of 0.1% BSA is recommended.
Purified recombinant PAI-1 expressed in E.coli.
Buffer Solution
10mM Sodium Phosphate
Preservative Stabilisers
None present
Carrier Free
Determined by its inhibitory effect against single chain tPA induced cleavage of a chromogenic substrate in Imidazole Buffer at 37oC. Half maximal inhibition against 1.0 μg/ml of single chain tPA was obtained at a concentration of 2.0 μg/ml.
>95% by SDS PAGE and HPLC analysis.
Approx. Protein Concentrations
0.1 mg/ml after reconstitution
Protein Molecular Weight
42.7 kDa (379 amino acid residues).
Endotoxin Level
< 1.0 EU/ug
For research purposes only
Guaranteed for 3 months from the date of reconstitution or until the date of expiry, whichever comes first. Please see label for expiry date.

Prior to reconstitution store at -20oC.
After reconstitution store at -20oC.
Storage in frost-free freezers is not recommended. This product should be stored undiluted. Avoid repeated freezing and thawing as this may denature the antibody. Should this product contain a precipitate we recommend microcentrifugation before use.

This product has been reported to work in the following applications. This information is derived from testing within our laboratories, peer-reviewed publications or personal communications from the originators. Please refer to references indicated for further information. For general protocol recommendations, please visit the antibody protocols page.
Application Name Verified Min Dilution Max Dilution
Functional Assays
Where this product has not been tested for use in a particular technique this does not necessarily exclude its use in such procedures. Suggested working dilutions are given as a guide only. It is recommended that the user titrates the product for use in their own system using appropriate negative/positive controls.

Entrez Gene
GO Terms
GO:0005886 plasma membrane
GO:0001300 chronological cell aging
GO:0002020 protease binding
GO:0002576 platelet degranulation
GO:0004252 serine-type endopeptidase activity
GO:0004867 serine-type endopeptidase inhibitor activity
GO:0005615 extracellular space
GO:0050829 defense response to Gram-negative bacterium
GO:0010469 regulation of receptor activity
GO:0010757 negative regulation of plasminogen activation
GO:0014912 negative regulation of smooth muscle cell migration
GO:0030168 platelet activation
GO:0031012 extracellular matrix
GO:0031093 platelet alpha granule lumen
GO:0032757 positive regulation of interleukin-8 production
GO:0033629 negative regulation of cell adhesion mediated by integrin
GO:0035491 positive regulation of leukotriene production involved in inflammatory response
GO:0042730 fibrinolysis
GO:0043066 negative regulation of apoptosis
GO:0045766 positive regulation of angiogenesis
GO:0048260 positive regulation of receptor-mediated endocytosis
GO:0051918 negative regulation of fibrinolysis
GO:0061044 negative regulation of vascular wound healing
GO:0070887 cellular response to chemical stimulus
GO:0071222 cellular response to lipopolysaccharide
GO:0090026 positive regulation of monocyte chemotaxis
GO:2000098 negative regulation of smooth muscle cell-matrix adhesion


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