This Mouse TGFBR3 overexpression lysate was created in HEK293 Cells and intented for use as a Western blot (WB) positive control. Purification of TGFBR3 protein (Cat: 50542-M08H) from the overexpression lysate was verified.
A DNA sequence encoding the extracellular domain of mouse TGFBR3 (NP_072075.2) (Met 1-Arg 399) was expressed, with a polyhistidine tag at the C-terminus.
The recombinant mouse TGFBR3 consists of 774 amino acids and has a predicted molecular mass of 86.3 kDa. In SDS-PAGE under reducing conditions, the apparent molecular mass of rmTGFBR3 is approximately 80-90 kDa due to glycosylation.
Mouse TGFBR3 HEK293 Overexpression Lysate: 使用指南
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.
Betaglycan also known as transforming growth factor beta receptor III (TGFBR3), is a cell-surface chondroitin sulfate / heparan sulfate proteoglycan. TGFBR3 is a transforming growth factor (TGF)-beta type III receptor. This receptor is a membrane proteoglycan that often functions as a co-receptor with other TGF-beta receptor superfamily members. Ectodomain shedding produces soluble TGFBR3, which may inhibit TGFB signaling. Decreased expression of this receptor has been observed in various cancers. TGFBR3 is the TGF-β component most commonly downregulated among localized human prostate cancer studies. TGFBR3 knockdown led to focus formation and enhanced expression of CD133, a marker found on prostate cancer stem cells. TGFBR3 is an accessory receptor that binds to and modulates the activities of both transforming growth factor-beta (TGFβ) and inhibin, two members of the TGFβ superfamily of growth factors that regulate many aspects of reproductive biology. TGFBR3 is known to be expressed in adult testis and ovary, but little is known about this receptor during gonadogenesis.
transforming growth factor, beta receptor III
Johnson DW, et al. (1996) Assignment of human transforming growth factor-beta type I and type III receptor genes (TGFBR1 and TGFBR3) to 9q33-q34 and 1p32-p33, respectively. Genomics. 28 (2): 356-7.
Rotzer D, et al. (2001) Type III TGF-beta receptor-independent signalling of TGF-beta2 via T betaRII-B, an alternatively spliced TGF- type II receptor. EMBO J. 20 (3): 480-90.
Gao J, et al. (1999) Expression of transforming growth factor-beta receptors types II and III within various cells in the rat periodontium. J Periodont Res. 34 (2): 113-22.