Expression Cloning and Characterization of PREB (Prolactin Regulatory Element Binding), a Novel WD Motif DNA-Binding Protein with a Capacity to Regulate Prolactin Promoter Activity

Abstract excerpt

Previous studies have implied that a transcription factor(s) other than Pit-1 is involved in homeostatic regulation of PRL promoter activity via Pit-1-binding elements. One such element, 1P, was employed to clone from a rat pituitary cDNA expression library a novel 417-amino acid WD protein, designated PREB (PRL regulatory element binding) protein. PREB contains two PQ-rich potential transactivation domains, but...

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