Human Serpin E1/PAI-1 Antibody

Recombinant Monoclonal Antibody.
  
  • Species Reactivity
    Human
  • Specificity
    Detects human Serpin E1/PAI‑1 in direct ELISAs.
  • Source
    Recombinant Monoclonal Rabbit IgG Clone # 1121C
  • Purification
    Protein A or G purified from cell culture supernatant
  • Immunogen
    S. frugiperda insect ovarian cell line Sf 21-derived recombinant human Serpin E1/PAI‑1
    Met1-Pro402
    Accession # NP_000593
  • Formulation
    Supplied as a solution in PBS containing BSA, Glycerol and Sodium Azide. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
  • Label
    Unconjugated
Applications
  •  
    Recommended
    Concentration
    Sample
  • Western Blot
    1:1000 dilution
    See below
  • Simple Western
    1:100 dilution
    See below
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.
Data Examples
Detection of Human Serpin E1/PAI‑1 by Western Blot. Western blot shows lysates of HUVEC human umbilical vein endothelial cells and HepG2 human hepatocellular carcinoma cell line. PVDF membrane was probed with 1:1000 dilution of Rabbit Anti-Human Serpin E1/PAI‑1 Monoclonal Antibody (Catalog # MAB17861) followed by HRP-conjugated Anti-Rabbit IgG Secondary Antibody (Catalog # HAF008). A specific band was detected for Serpin E1/PAI‑1 at approximately 48 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.
Detection of Human Serpin E1/PAI‑1 by Simple WesternTM. Simple Western lane view shows lysates of HUVEC human umbilical vein endothelial cells, loaded at 0.2 mg/mL. A specific band was detected for Serpin E1/PAI‑1 at approximately 55 kDa (as indicated) using 1:100 dilution of Rabbit Anti-Human Serpin E1/PAI‑1 Monoclonal Antibody (Catalog # MAB17861). This experiment was conducted under reducing conditions and using the 12-230 kDa separation system. Non-specific interaction with the 230 kDa Simple Western standard may be seen with this antibody.
Preparation and Storage
  • Shipping
    The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
  • 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 opening.
    • 6 months, -20 to -70 °C under sterile conditions after opening.
Background: Serpin E1/PAI-1

As a member of the Serpin superfamily of serine protease inhibitors, Serpin E1/PAI‑1 is the principal inhibitor of urokinase‑type plasminogen activator (uPA) and tissue‑type PA (1, 2). As important regulators of extracellular matrix remodeling, uPA and PAI‑1 play a major role in many processes such as angiogenesis, tumor invasion and obesity (2‑4). For example, uPA and PAI-1 are the only tumor prognostic factors validated at the highest level of evidence with regard to their clinical utility in breast cancer (5). The human PAI-1 is initially synthesized as 402 amino acid precursor with a N‑terminal signal peptide (6, 7). PAI‑1 may exist in one of two possible conformations, designated as active or latent (8). The purified rhPAI‑1 is active against rhuPA. The heterogeneity at the N‑terminus of the purified recombinant human PAI‑1 has been observed before for both the recombinant and native proteins (9).

  • References:
    1. Silverman, G.A. et al. (2001) J. Biol. Chem. 276:33293.
    2. Stefansson, S. et al. (2003) Curr. Pharm. Des. 9:1545.
    3. Duffy, M.J. (2002) Clin. Chem. 48:1194.
    4. Juhan-Vague, I. et al. (2003) J. Thromb. Haemost. 1:1575.
    5. Harbeck, N. et al. (2002) Clin. Breast Cancer 3:196.
    6. Pannekoek, H. et al. (1986) EMBO J. 5:2539.
    7. Ginsburg, D. et al. (1986) J. Clin. Invest. 78:1673.
    8. Wang, Z. et al. (1996) Biochemistry 35:16443.
    9. Stromqvist, M. et al. (1994) Protein Expr. Purif. 5:309.
  • Long Name:
    Plasminogen Activator Inhibitor
  • Entrez Gene IDs:
    5054 (Human); 18787 (Mouse)
  • Alternate Names:
    Endothelial plasminogen activator inhibitor; Nexin; PAI1; PAI-1; PAI1PAI-1; PAISerpin E1; PLANH1; PLANH1plasminogen activator inhibitor 1; serine (or cysteine) proteinase inhibitor, clade E (nexin, plasminogenactivator inhibitor type 1), member 1; Serpin E1; serpin peptidase inhibitor, clade E (nexin, plasminogen activator inhibitortype 1), member 1
Related Research Areas
Isotype Controls
Description Application Cat# Citations Images  

Normal Rabbit IgG Control

Ctrl AB-105-C 43  
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Normal Rabbit IgG Control

Ctrl, CyTOF-ready MAB1050  
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Secondary Antibodies
Description Application Cat# Citations Images  

Rabbit IgG HRP-conjugated Antibody

WB HAF008 23  
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Donkey Anti-Rabbit IgG NorthernLights™ NL557-conjugated Antibody

Flow, IHC, ICC NL004 10
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Donkey Anti-Rabbit IgG NorthernLights™ NL637-conjugated Antibody

Flow, IHC, ICC NL005 2
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Rabbit IgG APC-conjugated Antibody

Flow F0111 1  
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Rabbit IgG PE-conjugated Antibody

Flow F0110 2  
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Rabbit IgG Fluorescein-conjugated Antibody

Flow F0112 5  
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Donkey Anti-Rabbit IgG NorthernLights™ NL493-conjugated Antibody

Flow, IHC, ICC NL006 4
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Goat Anti-Rabbit IgG Biotinylated Antibody

WB BAF008 4
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Mouse/Rabbit IgG VisUCyte HRP Polymer Antibody

IHC VC002  
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Rabbit IgG Antibody

WB AF008 1
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Rabbit IgG VisUCyte HRP Polymer Antibody

IHC VC003  
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Donkey Anti-Rabbit IgG (H+L) Antibody

D-301-C-ABS2
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