Transactivation of the Progesterone Receptor Gene in Granulosa Cells: Evidence that Sp1/Sp3 Binding Sites in the Proximal Promoter Play a Key Role in Luteinizing Hormone Inducibility

Abstract excerpt

LH induction of the progesterone receptor (PR) in granulosa cells is a central event in ovulation. To identify critical regions of the mouse PR promoter that confer LH inducibility in granulosa cells, a mouse PR promoter (-384/+680) genomic fragment was ligated to a luciferase reporter construct and transfected into primary cultures of granulosa cells. Forskolin/phorbol myristate (PMA) induced PR...

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