The protein factors MBNL1 and U2AF65 bind alternative RNA structures to regulate splicing

Abstract excerpt

Myotonic dystrophy type 1 (DM1) is a genetic disorder linked to a (CTG)(n) repeat expansion in the 3' untranslated region of the DMPK gene. Upon transcription in the nucleus, the CUG repeats form a stable RNA stem-loop that sequesters the RNA-binding protein MBNL1 from its normal function in the cell. MBNL1 regulates the alternative splicing of many pre-mRNAs, and upon MBNL1's sequestration, the alternative...

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