Metabotropic glutamate receptors and fragile x mental retardation protein: partners in translational regulation at the synapse.

Abstract:

:Fragile X syndrome (FXS) mental retardation is caused by loss-of-function mutations in an RNA-binding protein, fragile X mental retardation protein (FMRP). Previous studies in patients or animal models of FXS have identified alterations in dendritic spine structure, as well as synaptic plasticity induced by metabotropic glutamate receptors (mGluRs). The translation of multiple messenger RNA (mRNA) targets of FMRP is regulated by mGluRs at synapses. Here, we incorporate data from several studies into a working model of how FMRP regulates mGluR-stimulated protein synthesis and, in turn, regulates protein synthesis-dependent synaptic plasticity. Understanding the complex functions of FMRP at the synapse will lead to a better understanding of the neurobiological underpinnings of mental retardation.

journal_name

Sci Signal

journal_title

Science signaling

authors

Ronesi JA,Huber KM

doi

10.1126/stke.15pe6

subject

Has Abstract

pub_date

2008-02-05 00:00:00

pages

pe6

issue

5

eissn

1945-0877

issn

1937-9145

pii

stke.15pe6

journal_volume

1

pub_type

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