Association of the glucocorticoid receptor alternatively-spliced transcript 1A with the presence of the high molecular weight membrane glucocorticoid receptor in mouse lymphoma cells

Fanghong Chen, Cheryl S. Watson, Bahiru Gametchu

    Research output: Contribution to journalArticle

    53 Citations (Scopus)

    Abstract

    Using the combination of a cDNA library prepared from membrane glucocorticoid (mGR)-enriched S-49 cells and a mouse leukocyte genomic library, we have cloned a 7.3 kb full-length glucocorticoid receptor 1A cDNA. Primer extension, 5'RACE, and long distance PCR identified the transcription start site as being located at 1026 bp from the ATG codon. The first 1,013 nucleotides (nts) of the full length sequence constitute 5'UTR sequence (exon 1), the next 2349 bp, the coding region, and the last 3,907 bp, the 3'UTR. The entire 5'UTR sequence is unique to transcript 1A. The 3'UTR sequence is ~88.5% conserved with the rat 3'UTR. Western blot analysis compared the molecular weight of in vitro translation products from the cloned 1A cDNA with partially purified cellular mGR. Both preparations contained the novel 150 KD and the 94 KD classical GR peptides, suggesting that transcript 1A encodes both receptor forms. Transfection of mGR-less and glucocorticoid lysis-resistant AtT-20 and HL-60 cells with full-length GR 1A cDNA imparted both mGR expression and glucocorticoid lysis-sensitivity to these cells.

    Original languageEnglish (US)
    Pages (from-to)430-446
    Number of pages17
    JournalJournal of Cellular Biochemistry
    Volume74
    Issue number3
    DOIs
    StatePublished - Sep 1 1999

    Fingerprint

    Glucocorticoid Receptors
    Glucocorticoids
    Lymphoma
    Molecular Weight
    Molecular weight
    Membranes
    3' Untranslated Regions
    Complementary DNA
    5' Untranslated Regions
    Genomic Library
    HL-60 Cells
    Transcription Initiation Site
    Gene Library
    Codon
    Transfection
    Rats
    Exons
    Leukocytes
    Nucleotides
    Western Blotting

    Keywords

    • Apoptosis
    • GR 1A
    • Leukemia
    • Membrane glucocorticoid receptor

    ASJC Scopus subject areas

    • Biochemistry
    • Cell Biology

    Cite this

    Association of the glucocorticoid receptor alternatively-spliced transcript 1A with the presence of the high molecular weight membrane glucocorticoid receptor in mouse lymphoma cells. / Chen, Fanghong; Watson, Cheryl S.; Gametchu, Bahiru.

    In: Journal of Cellular Biochemistry, Vol. 74, No. 3, 01.09.1999, p. 430-446.

    Research output: Contribution to journalArticle

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