Title : Stimulation of GRP78 gene transcription by phorbol ester and cAMP in GH3 pituitary cells. The accommodation of protein synthesis to chronic deprivation of intracellular sequestered calcium.

Pub. Date : 1991 Oct 15

PMID : 1655795






6 Functional Relationships(s)
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1 Stimulation of GRP78 gene transcription by phorbol ester and cAMP in GH3 pituitary cells. Cyclic AMP heat shock protein family A (Hsp70) member 5 Rattus norvegicus
2 In GH3 cells, optimal induction of GRP78 and translational accommodation depended on cAMP elevation and phorbol ester. Cyclic AMP heat shock protein family A (Hsp70) member 5 Rattus norvegicus
3 GRP78 mRNA was induced 3-6-fold with A23187 alone as compared with 12-20-fold with ionophore plus cAMP-elevating agent and phorbol ester, but was not markedly induced without A23187. Cyclic AMP heat shock protein family A (Hsp70) member 5 Rattus norvegicus
4 GRP78 gene transcription in nuclei isolated from A23187-treated cells was increased 2-4-fold by cAMP and phorbol ester. Cyclic AMP heat shock protein family A (Hsp70) member 5 Rattus norvegicus
5 A nucleotide sequence homologous to the cAMP-responsive element consensus potentially exists in the promoter region of the GRP78 gene. Cyclic AMP heat shock protein family A (Hsp70) member 5 Rattus norvegicus
6 Translational accommodation in ionophore-treated GH3 cells is proposed to involve enhanced transcription of GRP78 mRNA promoted by cAMP/phorbol ester in conjunction with preferential polysomal loading of the message. Cyclic AMP heat shock protein family A (Hsp70) member 5 Rattus norvegicus