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Neurochemical Research

, Volume 25, Issue 9–10, pp 1245–1255 | Cite as

Regulation of AMPA Receptors by Phosphorylation

  • Ana Luísa Carvalho
  • Carlos B. Duarte
  • Arsélio P. Carvalho
Article

Abstract

The AMPA receptors for glutamate are oligomeric structures that mediate fast excitatory responses in the central nervous system. Phosphorylation of AMPA receptors is an important mechanism for short-term modulation of their function, and is thought to play an important role in synaptic plasticity in different brain regions. Recent studies have shown that phosphorylation of AMPA receptors by cAMP-dependent protein kinase (PKA) and Ca2+ - and calmodulin-dependent protein kinase II (CaMKII) potentiates their activity, but phosphorylation of the receptor subunits may also affect their interaction with intracellular proteins, and their expression at the plasma membrane. Phosphorylation of AMPA receptor subunits has also been investigated in relation to processes of synaptic plasticity. This review focuses on recent advances in understanding the molecular mechanisms of regulation of AMPA receptors, and their implications in synaptic plasticity.

AMPA receptors protein kinase C protein kinase A Ca2+/calmodulin-dependent protein kinase II synaptic plasticity protein phosphatases 

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Copyright information

© Plenum Publishing Corporation 2000

Authors and Affiliations

  • Ana Luísa Carvalho
    • 1
  • Carlos B. Duarte
    • 1
  • Arsélio P. Carvalho
    • 2
  1. 1.Center for Neuroscience of Coimbra, Department of ZoologyUniversity of CoimbraCoimbraPortugal
  2. 2.Center for Neuroscience of Coimbra, Department of ZoologyUniversity of CoimbraCoimbraPortugal

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