AXL Kinase Enzyme System
Recombinant human AXL (amino acids 473-end) was expressed by baculovirus in Sf9 insect cells using an N-terminal His tag. AXL is a member of the receptor tyrosine kinase family, which has oncogenic potential and is implicated in human myeloid leukemia. AXL is a member of a complex signaling network that is involved in the control of cell proliferation and differentiation. Overexpression of AXL cDNA in NIH/3T3 cells induces neoplastic transformation of these cells with the concomitant appearance of a 140kDa AXL tyrosine-phosphorylated protein. Expression of AXL cDNA in the baculovirus system results in the expression of the appropriate recombinant protein that is recognized by anti-phosphotyrosine antibodies, confirming that the AXL protein is tyrosine phosphorylated. ADP-Glo Kinase Assay is a luminescent kinase assay that measures ADP formed from a kinase reaction; ADP is converted into ATP, which is a substrate in a reaction catalyzed by Ultra-Glo Luciferase that produces light. The luminescent signal positively correlates with ADP amount and kinase activity. The assay is well suited for measuring the effects chemical compounds have on the activity of a broad range of purified kinases, making it ideal for both primary screening as well as kinase selectivity profiling. The ADP-Glo Kinase Assay can be used to monitor the activity of virtually any ADP-generating enzyme (e.g., kinase or ATPase) using up to 1mM ATP. Kinase Enzyme System contains: Kinase: AXL, 10ug (Human, recombinant; amino acids 473-end). MW: ~55kDa. Substrate: Axltide (KKSRGDYMTMQIG); derived from the mouse Insulin receptor substrate 1 (amino acid 979-989). Other: Reaction Buffer, DTT. AXL NCBI Database Entry: www.ncbi.nlm.nih.gov/gene/558/. Visit www.promega.com/kinase/ to see all Kinase Enzyme Systems.