Cell
Volume 46, Issue 3, 1 August 1986, Pages 389-399
Journal home page for Cell

Article
Genetic complementation of a glucocorticoid receptor deficiency by expression of cloned receptor cDNA

https://doi.org/10.1016/0092-8674(86)90659-8Get rights and content

Abstract

We isolated and sequenced 6.3 kb of cDNA encoding the rat glucocorticoid receptor, a protein that binds and activates a class of hormone-dependent transcriptional enhancers. Receptor-containing cells produce receptor mRNAs of ≅6.5 kb and ≅4.8 kb that differ only in their 3′ nontranslated regions; an open reading frame of 795 amino acids resides within the 5′ portion of the transcripts. The coding region was expressed in vitro, in transient transfections, and in stable transfectants of a receptor-deficient cell line. The protein products are indistinguishable from bona fide receptor with respect to sedimentation and electrophoretic mobility, antibody reactivity, and hormone and DNA binding. Moreover, the cloned receptor protein activates its corresponding enhancers, restoring to the receptor-deficient cells the full capacity for regulated enhancement.

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