Description
Product Characteristics: DARPP-32 (Dopamine- and cAMP-Regulated Neuronal Phosphoprotein, Mr 32 kDa), also known as PPP1R1B, is expressed in medium-sized spiny neurons that also express dopamine D1 receptors. It is a bifunctional signaling molecule that controls serine/threonine kinase and serine/threonine phosphatase activity. Both dopaminergic and glutamatergic (NMDA) receptor stimulation regulate the extent of DARPP32 phosphorylation, but in opposite directions. Dopamine stimulates phosphorylation of DARPP-32 through dopamine D1 receptors and activation of PKA. PKA phosphorylation of DARPP-32 at Thr34 converts it into an inhibitor of protein phosphatase 1. DARPP-32 is converted into an inhibitor of PKA when phosphorylated at Thr75 by cyclin-dependent kinase 5 (CDK5).Rabbit Anti-DARPP-32 Polyclonal Antibody is developed in rabbit using a KLH-coupled synthetic peptide within residues 150-200 of human DARPP-32 (Swiss Prot: Q9UD71).
Target Information: This gene encodes a bifunctional signal transduction molecule. Dopaminergic and glutamatergic receptor stimulation regulates its phosphorylation and function as a kinase or phosphatase inhibitor. As a target for dopamine, this gene may serve as a therapeutic target for neurologic and psychiatric disorders. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2011]