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Science 22 October 1993:
Vol. 262. no. 5133, pp. 563 - 566
DOI: 10.1126/science.7692601

Articles

Science, Vol 262, Issue 5133, 563-566
Copyright © 1993 by American Association for the Advancement of Science


articles

FMR1 protein: conserved RNP family domains and selective RNA binding

CT Ashley Jr, KD Wilkinson, D Reines, and ST Warren

Department of Biochemistry, Emory University School of Medicine, Atlanta, GA 30322.

Fragile X syndrome is the result of transcriptional suppression of the gene FMR1 as a result of a trinucleotide repeat expansion mutation. The normal function of the FMR1 protein (FMRP) and the mechanism by which its absence leads to mental retardation are unknown. Ribonucleoprotein particle (RNP) domains were identified within FMRP, and RNA was shown to bind in stoichiometric ratios, which suggests that there are two RNA binding sites per FMRP molecule. FMRP was able to bind to its own message with high affinity (dissociation constant = 5.7 nM) and interacted with approximately 4 percent of human fetal brain messages. The absence of the normal interaction of FMRP with a subset of RNA molecules might result in the pleiotropic phenotype associated with fragile X syndrome.


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Abnormal dendritic spines in fragile X knockout mice: Maturation and pruning deficits.
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Y. Feng, C.-A. Gutekunst, D. E. Eberhart, H. Yi, S. T. Warren, and S. M. Hersch (1997)
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T. Davis-Smyth, R. C. Duncan, T. Zheng, G. Michelotti, and D. Levens (1996)
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Methylation of Expanded CCG Triplet Repeat DNA from Fragile X Syndrome Patients Enhances Nucleosome Exclusion.
Y.-H. Wang and J. Griffith (1996)
J. Biol. Chem. 271, 22937-22940
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Distinct Domains in Ribosomal Protein L5 Mediate 5 S rRNA Binding and Nucleolar Localization.
W. M. Michael and G. Dreyfuss (1996)
J. Biol. Chem. 271, 11571-11574
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Hel-N1/Hel-N2 proteins are bound to poly(A)+ mRNA in granular RNP structures and are implicated in neuronal differentiation.
F. B. Gao and J. D. Keene (1996)
J. Cell Sci. 109, 579-589
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trans-Activation by the hnRNP K Protein Involves an Increase in RNA Synthesis from the Reporter Genes.
M.-H. Lee, S. Mori, and P. Raychaudhuri (1996)
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Mutations in gld-1, a female germ cell-specific tumor suppressor gene in Caenorhabditis elegans, affect a conserved domain also found in Src-associated protein Sam68..
A R Jones and T Schedl (1995)
Genes & Dev. 9, 1491-1504
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Translational suppression by trinucleotide repeat expansion at FMR1.
Y Feng, F Zhang, L. Lokey, J. Chastain, L Lakkis, D Eberhart, and S. Warren (1995)
Science 268, 731-734
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Heterogeneous Nuclear Ribonucleoprotein K Is a DNA-binding Transactivator.
T. Tomonaga and D. Levens (1995)
J. Biol. Chem. 270, 4875-4881
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p62 Association with RNA Is Regulated by Tyrosine Phosphorylation.
L. L. Wang, S.ép. Richard, and A. S. Shaw (1995)
J. Biol. Chem. 270, 2010-2013
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Unstable Triplet Repeat Diseases.
D. G. Monckton and C. T. Caskey (1995)
Circulation 91, 513-520
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Conserved structures and diversity of functions of RNA-binding proteins.
C. Burd and G Dreyfuss (1994)
Science 265, 615-621
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A highly conserved protein family interacting with the fragile X mental retardation protein (FMRP) and displaying selective interactions with FMRP-related proteins FXR1P and FXR2P.
A. Schenck, B. Bardoni, A. Moro, C. Bagni, and J.-L. Mandel (2001)
PNAS 98, 8844-8849
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T7 phage display: A novel genetic selection system for cloning RNA-binding proteins from cDNA libraries.
S. Danner and J. G. Belasco (2001)
PNAS 98, 12954-12959
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Science. ISSN 0036-8075 (print), 1095-9203 (online)