Product: SERPINE1 Antibody
Catalog: BF0086
Description: Mouse monoclonal antibody to SERPINE1
Application: WB IHC ELISA FACS
Reactivity: Human
Mol.Wt.: 45kDa; 45kD(Calculated).
Uniprot: P05121
RRID: AB_2833974

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Product Info

ELISA 1:10000, WB 1:500-1:2000, IHC 1:200-1:1000, FCM 1:200-1:400
*The optimal dilutions should be determined by the end user.

WB: For western blot detection of denatured protein samples. IHC: For immunohistochemical detection of paraffin sections (IHC-p) or frozen sections (IHC-f) of tissue samples. IF/ICC: For immunofluorescence detection of cell samples. ELISA(peptide): For ELISA detection of antigenic peptide.

Monoclonal [AFB1951]
SERPINE1 antibody detects endogenous levels of total SERPINE1.
Cite Format: Affinity Biosciences Cat# BF0086, RRID:AB_2833974.
Mouse IgG1 in phosphate buffered saline (without Mg2+ and Ca2+), pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol. Store at -20 °C. Stable for 12 months from date of receipt.


Clade E; Endothelial plasminogen activator inhibitor; Nexin; PAI 1; PAI; PAI-1; PAI1_HUMAN; PLANH1; Plasminogen activator inhibitor 1; Plasminogen activator inhibitor type 1; Serine (or cysteine) proteinase inhibitor; Serine (or cysteine) proteinase inhibitor clade E (nexin plasminogen activator inhibitor type 1) member 1; Serpin E1; Serpin peptidase inhibitor clade E (nexin plasminogen activator inhibitor type 1) member 1; Serpin peptidase inhibitor clade E; Serpine 1; SERPINE1;



Purified recombinant fragment of human SERPINE1 expressed in E. Coli.

P05121 PAI1_HUMAN:

Expressed in endothelial cells (PubMed:2430793, PubMed:3097076). Found in plasma, platelets, and hepatoma and fibrosarcoma cells.

This gene encodes a member of the serine proteinase inhibitor (serpin) superfamily. This member is the principal inhibitor of tissue plasminogen activator (tPA) and urokinase (uPA), and hence is an inhibitor of fibrinolysis. Defects in this gene are the cause of plasminogen activator inhibitor-1 deficiency (PAI-1 deficiency), and high concentrations of the gene product are associated with thrombophilia. Alternatively spliced transcript variants encoding different isoforms have been found for this gene.

PTMs - P05121 As Substrate

Site PTM Type Enzyme
Y102 Phosphorylation
Y193 Phosphorylation
T200 Phosphorylation

Research Backgrounds


Serine protease inhibitor. Inhibits TMPRSS7. Is a primary inhibitor of tissue-type plasminogen activator (PLAT) and urokinase-type plasminogen activator (PLAU). As PLAT inhibitor, it is required for fibrinolysis down-regulation and is responsible for the controlled degradation of blood clots. As PLAU inhibitor, it is involved in the regulation of cell adhesion and spreading. Acts as a regulator of cell migration, independently of its role as protease inhibitor. It is required for stimulation of keratinocyte migration during cutaneous injury repair. It is involved in cellular and replicative senescence. Plays a role in alveolar type 2 cells senescence in the lung (By similarity). Is involved in the regulation of cementogenic differentiation of periodontal ligament stem cells, and regulates odontoblast differentiation and dentin formation during odontogenesis.


Inactivated by proteolytic attack of the urokinase-type (u-PA) and the tissue-type (TPA), cleaving the 369-Arg-|-Met-370 bond.

Subcellular Location:


Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionSubcellular location
Tissue Specificity:

Expressed in endothelial cells. Found in plasma, platelets, and hepatoma and fibrosarcoma cells.

Subunit Structure:

Forms a heterodimer with TMPRSS7. Interacts with VTN. Binds LRP1B; binding is followed by internalization and degradation. Interacts with PPP1CB. In complex with PLAU/uPA, interacts with PLAUR/uPAR. Interacts with SORL1 and LRP1, either alone or in complex with PLAU; these interactions are abolished in the presence of LRPAP1/RAP. The ternary complex composed of PLAUR-PLAU-PAI1 also interacts with SORL1. Also interacts with SORL1, when complexed to PLAT/tPA.


Belongs to the serpin family.

Research Fields

· Cellular Processes > Cell growth and death > p53 signaling pathway.   (View pathway)

· Cellular Processes > Cell growth and death > Cellular senescence.   (View pathway)

· Environmental Information Processing > Signal transduction > HIF-1 signaling pathway.   (View pathway)

· Environmental Information Processing > Signal transduction > Apelin signaling pathway.   (View pathway)

· Environmental Information Processing > Signal transduction > Hippo signaling pathway.   (View pathway)

· Human Diseases > Infectious diseases: Parasitic > Chagas disease (American trypanosomiasis).

· Organismal Systems > Immune system > Complement and coagulation cascades.   (View pathway)

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