Plasminogen activator inhibitor-1 (PAI-1) also known as endothelial plasminogen activator inhibitor or serpin E1 is a protein that in humans is encoded by the SERPINE1 gene. Elevated PAI-1 is a risk factor for thrombosis and atherosclerosis. PAI-1 is a serine protease inhibitor (serpin) that functions as the principal inhibitor of tissue plasminogen activator (tPA) and urokinase (uPA), the activators of plasminogen and hence fibrinolysis (the physiological breakdown of blood clots). It is a serine protease inhibitor (serpin) protein (SERPINE1). The other PAI, plasminogen activator inhibitor-2 (PAI-2) is secreted by the placenta and only present in significant amounts during pregnancy. In addition, protease nexin acts as an inhibitor of tPA and urokinase. PAI-1, however, is the main inhibitor of the plasminogen activators. PAI-1's main function entails the inhibition of urokinase plasminogen activator (uPA), an enzyme responsible for the cleavage of plasminogen to form plasmin. Plasmin mediates the degradation of the extracellular matrix either by itself or in conjunction with matrix metalloproteinases. In this scenario, PAI-1 inhibits uPA via active site binding, preventing the formation of plasmin. Additional inhibition is mediated by PAI-1 binding to the uPA/uPA receptor complex, resulting in the latter's degradation. Thus, PAI can be said to inhibit the serine proteases tPA and uPA/urokinase, and hence is an inhibitor of fibrinolysis, the physiological process that degrades blood clots. In addition, PAI-1 inhibits the activity of matrix metalloproteinases, which play a crucial role in invasion of malignant cells through the basal lamina. PAI-1 is mainly produced by the endothelium (cells lining blood vessels), but is also secreted by other tissue types, such as adipose tissue.

Plasminogen activator inhibitor 1 (PAI) (PAI-1) (Endothelial plasminogen activator inhibitor) (Serpin E1) SERPINE1 PAI1 PLANH1

Human,Mouse,Rat

WB,IHC,IF,ICC,FC

WB 1:1000
IHC 1:5000
IF 1:1000
ICC 1:100-1:400
FC 1:500-1:1000

Predicted band size: 45 kDa

SERPINE1 PAI1 PLANH1

p05121

Mouse

Monoclonal

Mouse

Angiogenesis #Fibrinolysis

No heat NIH/3T3 cell lysate, no heat NIH/3T3 serum starved for 4 hours then treated with 10ng/mL TGF-β for 21 hours add 300ng/mL BFA for 18 hours cell lysate, NIH/3T3 cell lysate, NIH/3T3 serum starved for 4 hours then treated with 10ng/mL TGF-β for 21 hours add 300ng/mL BFA for 18 hours cell lysate, HUVEC cell lysate, mouse placenta tissue lysate, rat placenta tissue lysate, human breast carcinoma tissue, human placenta tissue, HepG2, NIH/3T3.

Protein A affinity purified.

PBS (pH7.4), 0.1% BSA, 40% Glycerol. Preservative: 0.05% Sodium Azide.

Store at +4℃ after thawing. For long-term storage, please store it at -20℃. Avoid repeated freeze / thaw cycles.