内毒素:
Less than 1.0 EU per μg by the LAL method.

纯度:
>90% as determined by SDS-PAGE.

活性:
Measured by its binding ability in a functional ELISA. Immobilized Human HGF protein (Catalog # SB Human HGF Protein (10463-HNAS)) at 10μg/mL (100 μL/well) can bind Biotinylated Human HGF R, His Tag (Catalog # MET-H82E1) with a linear range of 0.04-0.31 μg/mL.

产品背景:
Hepatocyte growth factor receptor (HGFR) is also known as mesenchymal-epithelial transition factor (MET), c-Met, and  is a glycosylated receptor tyrosine kinase that plays a central role in epithelial morphogenesis and cancer development. HGFR protein possesses tyrosine-kinase activity. The primary single chain precursor protein is post-translationally cleaved to produce the alpha and beta subunits, which are disulfide linked to form the mature receptor. HGFR is normally expressed by cells of epithelial origin, while expression of HGF is restricted to cells of mesenchymal origin. Upon HGF stimulation, HGFR induces several biological responses that collectively give rise to a program known as invasive growth. Abnormal HGFR activation in cancer correlates with poor prognosis, where aberrantly active HGFR triggers tumor growth, formation of new blood vessels (angiogenesis) that supply the tumor with nutrients, and cancer spread to other organs (metastasis). HGFR is deregulated in many types of human malignancies, including cancers of kidney, liver, stomach, breast, and brain. Normally, only stem cells and progenitor cells express HGFR, However, cancer stem cells are thought to hijack the ability of normal stem cells to express HGFR, and thus become the cause of cancer persistence and spread to other sites in the body. Various mutations in the HGFR gene are associated with papillary renal carcinoma. HGFR mediates a complex program known as invasive growth. Activation of HGFR triggers mitogenesis, and morphogenesis.

产品描述:
This protein carries an Avi tag (Avitag) at the C-terminus, followed by a polyhistidine tag. The protein has a calculated MW of 104.3 kDa. The protein migrates as 40-45 kDa α subunit and 75 kDa β subunit on a SDS-PAGE gel under reducing (R) condition due to glycosylation.