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E7409 Sigma

EPHA3 (571-end), active, GST tagged human

PRECISIO® Kinase, recombinant, expressed in baculovirus infected Sf9 cells, ≥70% (SDS-PAGE), buffered aqueous glycerol solution

Synonym: ETK, HEK, TYRO4



Related Categories Active Kinases, Application Index, Biochemicals and Reagents, Cell Biology, Cell Signaling Enzymes,
recombinant   expressed in baculovirus infected Sf9 cells
grade   PRECISIO® Kinase
assay   ≥70% (SDS-PAGE)
form   buffered aqueous glycerol solution
activity   87-120 nmol/min·mg
mol wt   mol wt ~72 kDa
shipped in   dry ice
storage temp.   −70°C
Gene Information   human ... EPHA3(2042)


Physical form

Supplied in 50 mM Tris-HCl, pH 7.5, with 150 mM NaCl, 0.25 mM DTT, 0.1 mM EGTA, 0.1 mM EDTA, 0.1 mM PMSF, and 25% glycerol.

Biochem/physiol Actions

EPHA3 binds the ephrin-A ligand and has diverse cellular function. Analysis of human colorectal, breast, lung and pancreatic cancer samples shows somatic mutations in the EPHA3 gene. EPHA3 gene expression can be regulated by CD28 and IGF-1 in Jurkat cells and expression of EPHA3 is associated with adherence and motility of malignant T cells. It maintains the less differentiated state of cancer cells, by activating MAPK (mitogen-activated protein kinase) pathway. It is over-expressed in glioblastoma (GBM) cells, especially during the initial stages. It also has higher expression levels in aggressive mesenchymal subtype of GBM. In hepatocellular carcinoma (HCC), it predicts increased invasiveness and poor patient prognosis.

General description

EPHA3 is a receptor tyrosine kinase (RTK) belonging to the largest subgroup of RTKs called ephrin group of receptors. It has a high level of expression from placental stage through the whole developmental process. It is a type I transmembrane protein, and has a membrane-bound ligand. It is both an oncogene and a tumor-suppressor gene. This protein resides in both the cytosol and the plasma membrane.

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Biomedical Applications
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Safety Information

NONH for all modes of transport
WGK Germany 
Protocols & Articles
Peer-Reviewed Papers


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