Title : Neurotensin regulates DARPP-32 thr34 phosphorylation in neostriatal neurons by activation of dopamine D1-type receptors.

Pub. Date : 2002 Apr

PMID : 12064480






3 Functional Relationships(s)
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Protein Name
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1 DARPP-32, a dopamine- and cAMP-regulated phosphoprotein of Mr 32 kDa, is phosphorylated on Thr34 by cAMP-dependent protein kinase, resulting in its conversion into a potent inhibitor of protein phosphatase-1 (PP 1). Dopamine protein phosphatase 1, regulatory inhibitor subunit 1B Mus musculus
2 These results indicate that neurotensin stimulates the release of dopamine from nigrostriatal presynaptic terminals in an NMDA receptor- and AMPA receptor-dependent manner, leading to the increase in DARPP-32 Thr34 phosphorylation. Dopamine protein phosphatase 1, regulatory inhibitor subunit 1B Mus musculus
3 Thus, neurotensin, by stimulating the release of dopamine, activates the dopamine D1-receptor/cAMP/PKA/DARPP-32/PP 1 cascade. Dopamine protein phosphatase 1, regulatory inhibitor subunit 1B Mus musculus