HGFR/c-MET human

NA.32

Hepatocyte growth factor receptor (HGFR), 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 α and β 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.

Lyophilized from 0.22 μm filtered solution in PBS, pH7.4. Generally 5-8% Mannitol or trehalose is added as a protectant before lyophilization.

Centrifuge the vial prior to opening. Reconstitute in sterile PBS, pH 7.4 to a concentration of 50 μg/mL. Do not vortex. This solution can be stored at 2-8℃ for up to 1 month. For extended storage, it is recommended to store at -20℃.

human

expressed in HEK 293 cells

8-His tagged

≥95% (SDS-PAGE)

lyophilized

α-chain calculated mol wt 32.5 kDa (The mature form of HGFR is a disulfide-linked heterodimer composed of proteolytically cleaved α and β chain.)
α-chain observed mol wt 45 kDa by SDS-PAGE (reducing) (resulting from glycosylation.)
β-chain 85 kDa
β-chain calculated mol wt 60 kDa

pkg of 20 and 100 μg

<1 EU/μg endotoxin (LAL test)

P08581

wet ice

−20℃

human ... MET(4233)

11 - Combustible Solids

WGK 3