Serpin B9 Protein, Human, Recombinant (His)

カタログ番号 TMPY-02210

別名: CAP-3, PI-9, CAP3, PI9, serpin peptidase inhibitor, clade B (ovalbumin), member 9, Serpin B9

SerpinB9, also known as Cytoplasmic antiproteinase 3, CAP-3, Peptidase inhibitor 9, SERPINB9 and PI-9, is a cytoplasm protein that belongs to the serpin family and Ov-serpin subfamily. Serpin-B9 ( CAP-3 / PI-9 ) is the only known human intracellular inhibitor of granzyme B (GrB), the effector molecule in immunity against cytomegalovirus (CMV) and in renal allograft rejection. Serpin-B9 and SPI-6 expression in immune-privileged cells, APCs, and CTLs protect these cells against the actions of granzyme B, and when expressed in tumor cells or virally infected hepatocytes, confers resistance to killing by CTL and NK cells. Expression of increasing levels of Serpin-B9 ( CAP-3 / PI-9 ) in target cells may progressively inhibit immune surveillance by blocking NK and CTL-induced cytotoxicity through the perforin / granzyme pathway and then through the Fas / FasL pathway. Serpin-B9 ( CAP-3 / PI-9 ) is selectively up-regulated in hepatocytes in response to infiltration of the liver by NK cells that express perforin and enzymatically active granzyme B. Upregulated expression of Serpin-B9 ( CAP-3 / PI-9 ) in NSCLC cells may serve to protect them from apoptosis induced by GrB.

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Serpin B9 Protein, Human, Recombinant (His)

パッケージサイズ	在庫状況	単価(税別)
100 μg	約5 days	￥ 138,000

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生物学的特性に関する説明

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Product Properties

参考文献

説明

Species	Human
Expression Host	Baculovirus Insect Cells
Tag	His
Accession Number	P50453
別名	CAP-3, PI-9, CAP3, PI9, serpin peptidase inhibitor, clade B (ovalbumin), member 9, Serpin B9
Construction	The Human SERPINB9 (P50453) (Glu 2-Pro 376) was expressed, with a polyhistidine tag at the N-terminus.
Protein Purity	> 97 % as determined by SDS-PAGE
分子量	44.5 kDa (predicted)

Endotoxin	< 1.0 EU/μg of the protein as determined by the LAL method.
Formulation	Lyophilized from a solution filtered through a 0.22 μm filter, containing 50 mM Tris, 100 mM NaCl, pH 7.4. Typically, a mixture containing 5% to 8% trehalose, mannitol, and 0.01% Tween 80 is incorporated as a protective agent before lyophilization.
Reconstitution	A Certificate of Analysis (CoA) containing reconstitution instructions is included with the products. Please refer to the CoA for detailed information.
Stability & Storage	It is recommended to store recombinant proteins at -20°C to -80°C for future use. Lyophilized powders can be stably stored for over 12 months, while liquid products can be stored for 6-12 months at-80℃. For reconstituted proteinsolutions, the solution can be stored at -20°c to -80'c for at least 3 months. Please avoid multiple freeze-thaw cycles and store products in aliquots.
Shipping	In general, Lyophilized powders are shipping with blue ice.
Research Background	SerpinB9, also known as Cytoplasmic antiproteinase 3, CAP-3, Peptidase inhibitor 9, SERPINB9 and PI-9, is a cytoplasm protein that belongs to the serpin family and Ov-serpin subfamily. Serpin-B9 ( CAP-3 / PI-9 ) is the only known human intracellular inhibitor of granzyme B (GrB), the effector molecule in immunity against cytomegalovirus (CMV) and in renal allograft rejection. Serpin-B9 and SPI-6 expression in immune-privileged cells, APCs, and CTLs protect these cells against the actions of granzyme B, and when expressed in tumor cells or virally infected hepatocytes, confers resistance to killing by CTL and NK cells. Expression of increasing levels of Serpin-B9 ( CAP-3 / PI-9 ) in target cells may progressively inhibit immune surveillance by blocking NK and CTL-induced cytotoxicity through the perforin / granzyme pathway and then through the Fas / FasL pathway. Serpin-B9 ( CAP-3 / PI-9 ) is selectively up-regulated in hepatocytes in response to infiltration of the liver by NK cells that express perforin and enzymatically active granzyme B. Upregulated expression of Serpin-B9 ( CAP-3 / PI-9 ) in NSCLC cells may serve to protect them from apoptosis induced by GrB.

参考文献

1. Rowshani,A.T. et al., 2005, J Infect Dis.192 (11): 1908-11. 2. Cunningham,T.D. et al., 2007, Cell Immunol 245 (1): 32-41. 3. Rousalova,I. et al., 2010, Int J Oncol 36 (1): 275-83. 4. Stout-Delgado,H.W. et al., 2007, J Immunol. 179 (10):6561-7.

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Keywords

Serpin B9 Protein, Human, Recombinant (His) PI 9 CAP-3 PI-9 CAP 3 CAP3 PI9 serpin peptidase inhibitor, clade B (ovalbumin), member 9 Serpin B9 recombinant recombinant-proteins proteins protein