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Epidermal growth factor (EGF) receptor gene transcription

Journal Article · · J. Biol. Chem.; (United States)
OSTI ID:6771677
The authors have studied in vitro transcription of the human epidermal growth factor (EGF) receptor proto-oncogene using nuclear extracts of A431 human epidermoid carcinoma cells, which overproduce the EGF receptor. With the in vitro system we found that Sp1 and other trans-acting factors bound to the EGF receptor promoter regions and are required for maximal expression. Fractionation showed that a DEAE-Sepharose fraction (BA) contained a novel factor, which specifically stimulated EGF receptor transcription 5- to 10-fold. The molecular mass of the native form of the factor is about 270-kDa based on its migration on Sephacryl S-300. This factor may activate transcription of the proto-oncogene through a weak or indirect interaction with the DNA template.
Research Organization:
National Institutes of Health, Bethesda, MD (USA)
OSTI ID:
6771677
Journal Information:
J. Biol. Chem.; (United States), Journal Name: J. Biol. Chem.; (United States) Vol. 263:13; ISSN JBCHA
Country of Publication:
United States
Language:
English