title: cAMP/Ca2+ response element-binding protein plays a central role in the biogenesis of respiratory chain proteins in mammalian cells.
abstract: In mammalian cells, promotion of mitochondrial biogenesis by various agents involves cAMP and Ca(2+)-mediated signal transduction pathways. Recruitment of these pathways results in phosphorylation by cAMP and Ca(2+)-dependent protein kinases of cAMP/Ca(2+) response element-binding protein (CREB). Phosphorylation of CREB, bound to transcriptional complexes of target genes, activates a down-stream cascade of transcriptional complexes, which involve in sequence, the nuclear factors TORCs, PGC-1, NRF1 and NRF2, and the mitochondrial factor mitochondrial transcriptional factor A. CREB also binds directly to the D-loop of mitochondrial DNA and activates its expression. Activation of this network of transcriptional complexes results in concerted promotion of the expression of nuclear and mitochondrial genes encoding subunits of oxidative phosphorylation complexes.
authors.affiliation: Department of Medical Biochemistry, Biology and Physics, University of Bari, P.zza G. Cesare, 70124 Bari, Italy.
authors.forename: Domenico
authors.initials: D
authors.lastname: De Rasmo
authors.forename: Anna
authors.initials: A
authors.lastname: Signorile
authors.forename: Francesco
authors.initials: F
authors.lastname: Papa
authors.forename: Emilio
authors.initials: E
authors.lastname: Roca
authors.forename: Sergio
authors.initials: S
authors.lastname: Papa
mesh_terms: D000818:Animals; D001692:Biological Transport; D050882:CREB-Binding Protein / Q000378:metabolism*; D004268:DNA-Binding Proteins / Q000378:metabolism; D004579:Electron Transport; D006801:Humans; D024101:Mitochondrial Proteins / Q000378:metabolism; D015398:Signal Transduction; D014157:Transcription Factors / Q000378:metabolism
chemical_list: D004268:DNA-Binding Proteins; D024101:Mitochondrial Proteins; D014157:Transcription Factors; C422562:mitochondrial transcription factor A; D050882:CREB-Binding Protein