Serpin B2, also known as Plasminogen Activator Inhibitor 2 (PAI-2), is a 415 amino acid serine-type endopeptidase inhibitor with high expression in blood, vasculature and placenta. Its expression is upregulated in pregnancy and in activated monocytes/macrophages by a wide range of viral, bacterial and parasitic agents. Serpin B2 is upregulated in monocytes from HIV-1 infected patients, and is thought to modulate Th1/Th2 responses. Serpin B2/PAI-2 colocalizes with CHL1 and Vitronectin and mediates neurite outgrowth during post-natal brain development. Inhibition of uPA by SerpinB2 in tumors is associated with a favorable prognosis.
Human Serpin B2 Antibody
R&D Systems | Catalog # MAB85501
Key Product Details
Validated by
Knockout/Knockdown, Biological Validation
Species Reactivity
Validated:
Human
Cited:
Human
Applications
Validated:
Knockout Validated, Western Blot, Simple Western
Cited:
Western Blot
Label
Unconjugated
Antibody Source
Monoclonal Mouse IgG2A Clone # 930119
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Product Specifications
Immunogen
E. coli-derived recombinant human Serpin B2
Glu2-Ala65, Ala99-Pro415
Accession # P05120
Glu2-Ala65, Ala99-Pro415
Accession # P05120
Specificity
Detects human Serpin B2 in direct ELISAs.
Clonality
Monoclonal
Host
Mouse
Isotype
IgG2A
Scientific Data Images for Human Serpin B2 Antibody
Western Blot Show Human Serpin B2 Specificity Using Knockout Cell Line.
Western blot shows lysates of K562 human chronic myelogenous leukemia parental cell line and Serpin B2 knockout K562 cell line (KO) untreated (-) or treated (+) with 300nM PMA for overnight. PVDF membrane was probed with 2 µg/mL of Mouse Anti-Human Serpin B2 Monoclonal Antibody (Catalog # MAB85501) followed by HRP-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # HAF018). A specific band was detected for Serpin B2 at approximately 40 kDa (as indicated) in the parental K562 cell line, but is not detectable in the knockout K562 cell line. HSP60 (Catalog # MAB1800) is shown as a loading control. This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.Detection of Human Serpin B2 by Western Blot.
Western blot shows lysates of HEK001 human epidermal keratinocyte cell line (untreated) and U937 human histiocytic lymphoma cell line untreated (-) or treated (+) with PMA. PVDF membrane was probed with 0.05 µg/mL of Mouse Anti-Human Serpin B2 Monoclonal Antibody (Catalog # MAB85501) followed by HRP-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # HAF018). A specific band was detected for Serpin B2 at approximately 45 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.Detection of Human Serpin B2 by Simple WesternTM.
Simple Western lane view shows lysates of U937 human histiocytic lymphoma cell line untreated (-) or treated (+) with PMA, loaded at 0.2 mg/mL. Specific bands were detected for Serpin B2 at approximately 45 & 50 kDa (as indicated) using 20 µg/mL of Mouse Anti-Human Serpin B2 Monoclonal Antibody (Catalog # MAB85501). 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.Applications for Human Serpin B2 Antibody
Application
Recommended Usage
Knockout Validated
2 µg/mL
Sample: K562 human chronic myelogenous leukemia parental cell line and Serpin B2 knockout K562 cell line treated ith PMA
Sample: K562 human chronic myelogenous leukemia parental cell line and Serpin B2 knockout K562 cell line treated ith PMA
Simple Western
20 µg/mL
Sample: U937 human histiocytic lymphoma cell line treated with PMA
Sample: U937 human histiocytic lymphoma cell line treated with PMA
Western Blot
0.05 µg/mL
Sample: HEK001 human epidermal keratinocyte cell line (untreated) and U937 human histiocytic lymphoma cell line treated with PMA
Sample: HEK001 human epidermal keratinocyte cell line (untreated) and U937 human histiocytic lymphoma cell line treated with PMA
Formulation, Preparation, and Storage
Purification
Protein A or G purified from hybridoma culture supernatant
Reconstitution
Reconstitute at 0.5 mg/mL in sterile PBS. For liquid material, refer to CoA for concentration.
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Formulation
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.
Shipping
Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.
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 reconstitution.
- 6 months, -20 to -70 °C under sterile conditions after reconstitution.
Calculators
Background: Serpin B2
Alternate Names
PAI2, PLANH2, Urokinase Inhibitor
Gene Symbol
SERPINB2
UniProt
Additional Serpin B2 Products
Product Documents for Human Serpin B2 Antibody
Certificate of Analysis
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Note: Certificate of Analysis not available for kit components.
Product Specific Notices for Human Serpin B2 Antibody
For research use only
Related Research Areas
Citations for Human Serpin B2 Antibody
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Protocols
Find general support by application which include: protocols, troubleshooting, illustrated assays, videos and webinars.
- Cellular Response to Hypoxia Protocols
- R&D Systems Quality Control Western Blot Protocol
- Troubleshooting Guide: Western Blot Figures
- Western Blot Conditions
- Western Blot Protocol
- Western Blot Protocol for Cell Lysates
- Western Blot Troubleshooting
- Western Blot Troubleshooting Guide
- View all Protocols, Troubleshooting, Illustrated assays and Webinars
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