Project description:CUG-binding protein 1 (CUGBP1) and muscleblind-like 1 (MBNL1) are developmentally regulated RNA-binding proteins that are causally associated with myotonic dystrophy type 1. We extensively determined RNA-binding sites of CUGBP1 and MBNL1 to investigate their roles in RNA processing. We also analyzed polypyrimidine tract-binding protein (PTB) as a control. CUGBP1 and MBNL1 preferentially bind to alternatively spliced introns and exons, respectively, and regulate alternative splicing events. Moreover, CUGBP1 and MBNL1 are preferentially bound to the 3' untranslated regions (UTRs), in particular of genes for RNA-binding proteins, and facilitate decay of the bound mRNAs. In addition, CUGBP1 and MBNL1 mutually destabilize mRNA. Precise temporal regulation of CUGBP1 and MBNL1 are likely to be essential for accurate control of destabilization of a broad spectrum of genes as well as of alternative splicing events in cell differentiation and tissue development.
Project description:CUGBP1 and MBNL1 are developmentally regulated RNA-binding proteins that are causally associated with myotonic dystrophy type 1. Using HITS-CLIP anlysis, we found CUGBP1 and MBNL1 preferentially bind to alternatively spliced introns and exons, as well as to the 3' UTRs. To analyze more directly the role of CUGBP1/MBNL1 binding to the 3’ UTR, we performed global analysis of mRNA stability in C2C12 cells using expression arrays, and found that CUGBP1 and MBNL1 regulate decay of endogenous mRNAs. We analyzed total RNA of C2C12 cells treated with control-, Cugbp1- or Mbnl1-siRNA. We analyzed 3 time points after addition of actionmycin D (0, 2.5, 5 hours).
Project description:CUGBP1 and MBNL1 are developmentally regulated RNA-binding proteins that are causally associated with myotonic dystrophy type 1. Using HITS-CLIP anlysis, we found CUGBP1 and MBNL1 preferentially bind to alternatively spliced introns and exons, as well as to the 3' UTRs. To analyze more directly the role of CUGBP1/MBNL1 binding in alternative splicing, we performed exon array analysis in C2C12 cells using expression arrays. We analyzed total RNA of C2C12 cells treated with control-, Cugbp1- or Mbnl1-siRNA. RNA was harvested 48 hrs after transfection.
Project description:CUGBP1 and MBNL1 are developmentally regulated RNA-binding proteins that are causally associated with myotonic dystrophy type 1. Using HITS-CLIP anlysis, we found CUGBP1 and MBNL1 preferentially bind to alternatively spliced introns and exons, as well as to the 3' UTRs. To analyze more directly the role of CUGBP1/MBNL1 binding to the 3’ UTR, we performed global analysis of mRNA stability in C2C12 cells using expression arrays, and found that CUGBP1 and MBNL1 regulate decay of endogenous mRNAs.
Project description:CUGBP1 and MBNL1 are developmentally regulated RNA-binding proteins that are causally associated with myotonic dystrophy type 1. Using HITS-CLIP anlysis, we found CUGBP1 and MBNL1 preferentially bind to alternatively spliced introns and exons, as well as to the 3' UTRs. To analyze more directly the role of CUGBP1/MBNL1 binding in alternative splicing, we performed exon array analysis in C2C12 cells using expression arrays.
Project description:To determine the lncRNA expression profile in C2C12 myoblasts and myotubes, we used mouse lncRNA microarray from Arraystar to examine the expression of lncRNAs in C2C12 myoblasts and myotubes.
Project description:To determine the circRNA expression profile in C2C12 myoblasts and myotubes, we used mouse circRNA microarray from Arraystar to examine the expression of circRNAs in C2C12 myoblasts and myotubes.
Project description:Maps of genomic regions in proximity to the nuclear lamina were determined in undifferentiated C2C12 myoblasts (MBs) and 6 day differentiated C2C12 myotubes (MTs) using DamID with a Dam-Lamin B1-encoding lentivirus.
