INT287580
From wiki-pain
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Sentences Mentioned In
Key: | Protein | Mutation | Event | Anatomy | Negation | Speculation | Pain term | Disease term |
The conclusion that I304N FMRP KH2 domain fails to bind RNA in vivo is consistent with structural studies of several RNA-binding proteins suggesting that this mutation should affect RNA binding. | |||||||||||||||
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RGG-domain RNA binding to RNA over 200nt is not evident in the I304N mouse, suggesting either that it plays a minor or dependent role to KH2 binding to large RNAs. | |||||||||||||||
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This finding suggests that loss of FMRP activity, including but not necessarily limited to KH2 RNA binding, may play a critical role in leading to the synaptic defects evident in the mouse, and, presumably, in human patients. | |||||||||||||||
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While other interpretations cannot be ruled out, including the loss of KH2-dependent interaction with a protein partner, taken together our data suggest that the resulting loss of polysome association and, presumably, proper regulation of translation of FMRP mRNA targets, is most likely to contribute to the phenotype of the Fmr1I304N mouse.
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General Comments
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