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Various agents are able to stimulate the EGF receptor protein tyrosine kinase in the absence of ligand binding. To characterize their mechanism of action, we investigated their effects on the kinase activity of the intracellular domain of the EGF receptor (EGFR-IC). EGFR-IC (67 kDa) lacking the extracellular domain and transmembrane segment of the EGF(More)
We have compared several combinations of enhancers and promoters in expressing the chloramphenicol acetyl transferase gene in transient assays, in mouse C127, the most widely used host cell for the bovine papilloma virus (BPV) expression vector. Of the various combinations tested, the unit comprised of the SV40 enhancer and adenovirus type 2 major late(More)
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