This Mouse PIK3IP1 overexpression lysate was created in HEK293 Cells and intented for use as a Western blot (WB) positive control. Purification of PIK3IP1 protein (Cat: 52429-M08H) from the overexpression lysate was verified.
A DNA sequence encoding the mouse Pik3ip1 (NP_835362.2) (Met1-Leu170) was expressed with a polyhistidine tag at the C-terminus.
The recombinant mouse Pik3ip1 consists of 160 amino acids and predicts a molecular mass of 17.5 kDa.
Mouse PIK3IP1 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.
PIK3IP1 contains 1 kringle domain and is a negative regulator of phosphatidylinositol-3-kinase (PI3K), suppresses the development of hepatocellular carcinoma. PI3K is a well-known regulator of cell division, motility, metabolism and survival in most cell types. Proper liver function and development highly depend on intact PI3K signal transduction. Aberrant PI3K pathway signaling in the liver is associated with hepatocellular carcinoma. PI3K signaling is involved in the homeostasis of lipid and glucose metabolism. Activation of the PI3K pathway induces lipogenesis and glycogenesis in the liver, since both Akt overexpressing transgenic mice and PTEN knockout mice develop fatty liver and hypoglycemia. PIK3IP1 overexpression can contribute to glucose homeostasis and fatty deposition.
phosphoinositide-3-kinase interacting protein 1
He X, et al. (2008) PIK3IP1, a negative regulator of PI3K, suppresses the development of hepatocellular carcinoma. Cancer Res. 68(14):5591-8.
Gao P, et al. (2008) Both PIK3IP1 and its novel found splicing isoform, PIK3IP1-v1, are located on cell membrane and induce cell apoptosis. Beijing Da Xue Xue Bao. 40(6):572-7.
Zhu Z, et al. (2007) PI3K is negatively regulated by PIK3IP1, a novel p110 interacting protein. Biochem Biophys Res Commun. 358(1):66-72.