Disruption of splicing regulated by a CUG-binding protein in myotonic dystrophy - PubMed (original) (raw)
Disruption of splicing regulated by a CUG-binding protein in myotonic dystrophy
A V Philips et al. Science. 1998.
Abstract
Myotonic dystrophy (DM) is caused by a CTG expansion in the 3' untranslated region of the DM gene. One model of DM pathogenesis suggests that RNAs from the expanded allele create a gain-of-function mutation by the inappropriate binding of proteins to the CUG repeats. Data presented here indicate that the conserved heterogeneous nuclear ribonucleoprotein, CUG-binding protein (CUG-BP), may mediate the trans-dominant effect of the RNA. CUG-BP was found to bind to the human cardiac troponin T (cTNT) pre-messenger RNA and regulate its alternative splicing. Splicing of cTNT was disrupted in DM striated muscle and in normal cells expressing transcripts that contain CUG repeats. Altered expression of genes regulated posttranscriptionally by CUG-BP therefore may contribute to DM pathogenesis.
Comment in
- Triplet-repeat transcripts: a role for DNA in disease.
Singer RH. Singer RH. Science. 1998 May 1;280(5364):696-7. doi: 10.1126/science.280.5364.696. Science. 1998. PMID: 9599147 No abstract available.
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