0000000001055374

AUTHOR

Frank Blum

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A differential role of CREB phosphorylation in cAMP-inducible gene expression in the rat pineal

2000

In the rat pineal gland cAMP mediates nocturnal induction of the enzyme arylalkylamine N-acetyltransferase (AA-NAT) as well as of transcription factors such as inducible cAMP early repressor (ICER), Fos-related antigen-2 (Fra-2) and JunB. Cyclic AMP stimulates the phosphorylation of the DNA binding protein cAMP response element binding protein (CREB). While cAMP-induced CREB phosphorylation appears to be a prerequisite for AA-NAT and ICER gene expression, it is not known whether CREB phosphorylation accounts for the full cAMP response of the two genes. Furthermore, the significance of CREB phosphorylation in cAMP-activated Fra-2 and JunB transcription is unknown. In the present in vitro stu…

Transcriptional Activationendocrine systemCAMP-Responsive Element ModulatorArylamine N-AcetyltransferaseProto-Oncogene Proteins c-junJUNBBlotting WesternNerve Tissue ProteinsFos-Related Antigen-2CREBPineal GlandGene Expression Regulation EnzymologicCyclic AMP Response Element ModulatorRats Sprague-DawleyOkadaic AcidGene expressionAnimalsRNA MessengerEnzyme InhibitorsPhosphorylationCyclic AMP Response Element-Binding ProteineducationMolecular BiologyTranscription factorRegulation of gene expressioneducation.field_of_studybiologyReverse Transcriptase Polymerase Chain ReactionGeneral NeuroscienceMolecular biologyRatsDNA-Binding ProteinsRepressor ProteinsBucladesinebiology.proteinPhosphorylationNeurology (clinical)CREB1Proto-Oncogene Proteins c-fosSignal TransductionTranscription FactorsDevelopmental BiologyBrain Research
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