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Trends Biochem Sci. 2003 Mar;28(3):152-8.

New insights into fragile X syndrome: from molecules to neurobehaviors.

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Department of Human Genetics, Emory University School of Medicine, Atlanta, GA 30322, USA.


Fragile X syndrome - a common form of inherited mental retardation - is caused by the loss of the fragile X mental retardation 1 protein (FMRP). FMRP is an RNA-binding protein which forms a messenger ribonucleoprotein (mRNP) complex that associates with translating polyribosomes. It has been proposed that FMRP is involved in synaptic plasticity through the regulation of mRNA transportation and translation. Recent advances in the identification of the mRNA ligands that are bound by FMRP, the RNA sequence and structure required for FMRP-RNA interaction, and the physiological consequences of FMRP deficiency in the brain are important steps towards understanding the molecular pathogenesis of fragile X syndrome, and learning and memory in general.

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