c-Myb and Members of the c-Ets Family of Transcription Factors Act as Molecular Switches to Mediate Opposite Steroid Regulation of the Human Glucocorticoid Receptor 1A Promoter

Abstract excerpt

Steroid auto-regulation of the human glucocorticoid receptor (hGR) 1A promoter in lymphoblast cells resides largely in two DNA elements (footprints 11 and 12). We show here that c-Myb and c-Ets family members (Ets-1/2, PU.1, and Spi-B) control hGR 1A promoter regulation in T- and B-lymphoblast cells. Two T-lymphoblast lines, CEM-C7 and Jurkat, contain high levels of c-Myb and low levels of PU.1, whereas the...

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