Protein phosphatase 1 modulation of neostriatal AMPA channels: Regulation by DARPP-32 and spinophilin

Zhen Yan, Linda Hsieh-Wilson, Jian Feng, Kazuhito Tomizawa, Patrick B. Allen, Allen A. Fienberg, Angus C. Nairn, Paul Greengard

Research output: Contribution to journalArticlepeer-review

235 Citations (Scopus)

Abstract

Modulation of AMPA-type glutamate channels is important for synaptic plasticity. Here we provide physiological evidence that the activity of AMPA channels is regulated by protein phosphatase 1 (PP-1) in neostriatal neurons and identify two distinct molecular mechanisms of this regulation. One mechanism involves control of PP-1 catalytic activity by DARPP-32, a dopamine- and cAMP-regulated phosphoprotein highly enriched in neostriatum. The other involves binding of PP-1 to spinophilin, a protein that colocalizes PP-1 with AMPA receptors in postsynaptic densities. The results suggest that regulation of anchored PP-1 is important for AMPA-receptor-mediated synaptic transmission and plasticity.

Original languageEnglish
Pages (from-to)13-17
Number of pages5
JournalNature Neuroscience
Volume2
Issue number1
DOIs
Publication statusPublished - Jan 1999

ASJC Scopus subject areas

  • Neuroscience(all)

Fingerprint Dive into the research topics of 'Protein phosphatase 1 modulation of neostriatal AMPA channels: Regulation by DARPP-32 and spinophilin'. Together they form a unique fingerprint.

Cite this