Mouse Monoclonal Antibody
Manufacturer: Fischer Scientific
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SerpinB9
1.0 mg/mL
Immunohistochemistry (Frozen), Western Blot, Immunohistochemistry, Immunohistochemistry (Paraffin), Flow Cytometry
Unconjugated
Mouse
Apoptosis, Immunology
P50453
5272
Recombinant PI-9 produced in P. pastoris.
Primary
Store at 4C short term. Aliquot and store at -20C long term. Avoid freeze-thaw cycles.
7D8
Western Blot 1:100-1:2000, Flow Cytometry 1:10-1:100, Immunohistochemistry 1:10-1:500, Immunohistochemistry-Paraffin 1:50, Immunohistochemistry-Frozen 1:10-1:500
Monoclonal
Purified
RUO
Mouse (Negative), Porcine (Negative), Human
CAP-3, CAP3PI-9, Cytoplasmic antiproteinase 3, Peptidase inhibitor 9, PI9protease inhibitor 9 (ovalbumin type), serine (or cysteine) proteinase inhibitor, clade B (ovalbumin), member 9, serpin B9, serpin peptidase inhibitor, clade B (ovalbumin), member 9, serpin peptidase inhibitor, clade B, member 9
SERPINB9
IgG1
Protein G purified
NB100-64359 is specific for human PI-9 (proteinase inhibitor 9), also known as SerpinB9, a 42kDa intracellular nucleocytoplasmic serpin expressed in cytotoxic lymphocytes (CTLs), natural killer (NK) cells, monocyte-derived dendritic cells (DCs), and to a lesser extent in B cells and myeloid cells. Granzyme B (grB) is a serine protease highly expressed by CTLs and NK cells, which is endocytosed by virus-infected and malignant target cells. The subsequent release of grB from the endocytic vesicles into the cytoplasm of the target cells, triggers grB-mediated apoptosis, through cleavage of various cytoplasmic or nuclear proteins. PI-9, up-regulated in response to grB production and degranulation, has been identified as a potent inhibitor of Granzyme B-mediated apoptosis, providing a vital self-protection mechanism against the premature apoptosis of CTLs and NK cells by grB, which may escape into the cytoplasm of the effector cells themselves. Clone 7D8 detects a band of approximately 42kDa under reducing conditions. Clone 7D8 is suitable for use in indirect Immunofluorescence (2).