2016
Glutamate Counteracts Dopamine/PKA Signaling via Dephosphorylation of DARPP-32 Ser-97 and Alteration of Its Cytonuclear Distribution
Nishi A, Matamales M, Musante V, Valjent E, Kuroiwa M, Kitahara Y, Rebholz H, Greengard P, Girault JA, Nairn AC. Glutamate Counteracts Dopamine/PKA Signaling via Dephosphorylation of DARPP-32 Ser-97 and Alteration of Its Cytonuclear Distribution. Journal Of Biological Chemistry 2016, 292: 1462-1476. PMID: 27998980, PMCID: PMC5270488, DOI: 10.1074/jbc.m116.752402.Peer-Reviewed Original ResearchConceptsProtein phosphatase 1Ser-97PKA signalingDARPP-32Thr-34Activation of PP2A.Multiple cellular levelsProtein DARPP-32Phosphatase 1Heterotrimer complexPKA actionPhosphorylation stateNuclear localizationThr-75Phosphatase assaysDephosphorylationDARPP-32 phosphorylationCultured striatal neuronsSer-130Cellular levelSignalingPhosphorylationMajor siteStriatal neuronsGlutamate
1997
The Regulation of Glycogen Synthase by Protein Phosphatase 1 in 3T3-L1 Adipocytes EVIDENCE FOR A POTENTIAL ROLE FOR DARPP-32 IN INSULIN ACTION*
Brady M, Nairn A, Saltiel A. The Regulation of Glycogen Synthase by Protein Phosphatase 1 in 3T3-L1 Adipocytes EVIDENCE FOR A POTENTIAL ROLE FOR DARPP-32 IN INSULIN ACTION*. Journal Of Biological Chemistry 1997, 272: 29698-29703. PMID: 9368038, DOI: 10.1074/jbc.272.47.29698.Peer-Reviewed Original ResearchConceptsProtein phosphatase 1PP1 activityGlycogen synthasePhosphatase 1DARPP-32Glycogen synthesisPrimary rat adipocytesPP1 proteinProtein DARPP-32Glycogen synthase activityKinetic lagSynthase activityGlycogen accumulationDifferentiationRat adipocytesAdipocytesFibroblast extractsAdipocyte cellsTotal glycogen synthase activitySynthaseInsulin actionPotential roleSpecific activityParticulate fractionInsulin pretreatment