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Specifications

A431 cells express approximately 10e6 epidermal growth factor (EGF) receptors at the cell surface. Upon stimulation with EGF, A431 cells exhibit a dramatic increase in phosphorylation of EGF receptors followed by activation of major cell signaling pathways, such as PKB/Akt and MAP
kinase pathways. Downstream of these cell signaling pathways, a variety of cytoskeletal, cytoplasmic, and nuclear proteins become phosphorylated at different time points after EGF stimulation. Confluent cultures of A431 cells were serum starved overnight. Cells were then either left untreated or treated with human EGF (100 ng/ml) for 30 minutes at 37°C. Cells were lysed in 1% SDS, 1.0mM sodium ortho-vanadate, 10mM Tris (pH 7.4) buffer. Protein concentration was determined using the BCA method (Pierce) before diluting to final concentration and buffer.
Catalog #	A0001-52A
Applications	SDS-PAGE/Western blotting 20ml/well
	End user should determine optimal quantity for their particular applications and experiments.
Concentration	~1mg/ml
Form	Supplied in electrophoresis sample buffer (62.5mM Tris pH 7.2, 2% SDS, 5% glycerol, 0.003% bromophenol blue, 0.9% b-mercaptoethanol).
Important Note	This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.