This Mouse SERPINB10 overexpression lysate was created in Baculovirus-Insect cells and intented for use as a Western blot (WB) positive control. Purification of SERPINB10 protein (Cat: 50626-M08B) from the overexpression lysate was verified.
A DNA sequence encoding the mouse SERPINB10 (Q8K1K6-1) (Met 1-Pro 397) was expressed, with a C-terminal polyhistidine tag.
The recombinant mouse SERPINB10 consists of 408 amino acids and has a calculated molecular mass of 46.5 kDa. It migrates as an approximately 44 kDa band in SDS-PAGE under reducing conditions.
Cell lysate was prepared by homogenization of the over-expressed cells in ice-cold modified RIPA Lysis Buffer with cocktail of protease inhibitors (Sigma). Cell debris was removed by centrifugation. Protein concentration was determined by Bradford assay (Bio-Rad protein assay, Microplate Standard assay). The cell lysate was boiled for 5 min in 1 x SDS loading buffer (50 mM Tris-HCl pH 6.8, 12.5% glycerol, 1% sodium dodecylsulfate, 0.01% bromophenol blue) containing 5% b-mercaptoethanol, and lyophilized.
Serpins are the largest and most diverse family of serine protease inhibitors which are involved in a number of fundamental biological processes such as blood coagulation, complement activation, fibrinolysis, angiogenesis, inflammation and tumor suppression and are expressed in a cell-specific manner. Serpins are a group of proteins with similar structures that were first identified as a set of proteins able to inhibit proteases. The acronym serpin was originally coined because many serpins inhibit chymotrypsin-like serine proteases (serine protease inhibitors). Over 1 serpins have been identified. Mouse SerpinB1, also known as Peptidase inhibitor 1, PI-1, Bomapin and SERPINB1, is a nucleus and cytoplasm protein that belongs to the serpin family and Ov-serpin subfamily. SerpinB1 is expressed specifically in the bone marrow. SerpinB1 is a protease inhibitor that may play a role in the regulation of protease activities during hematopoiesis and apoptosis induced by TNF. SerpinB1 is a redox-sensitive nuclear serpin that augments proliferation or apoptosis of leukaemia cells, depending on growth factors availability. SerpinB1 may regulate protease activities in the cytoplasm and the nucleus.
serpin peptidase inhibitor, clade B (ovalbumin), member 10
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