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Articles 1 - 2 of 2
Full-Text Articles in Molecular Biology
A Conserved Three-Nucleotide Core Motif Defines Musashi Rna Binding Specificity, Nancy Zearfoss, Laura Deveau, Carina Clingman, Eric Schmidt, Emily Johnson, Francesca Massi, Sean Ryder
A Conserved Three-Nucleotide Core Motif Defines Musashi Rna Binding Specificity, Nancy Zearfoss, Laura Deveau, Carina Clingman, Eric Schmidt, Emily Johnson, Francesca Massi, Sean Ryder
Sean P. Ryder
Musashi (MSI) family proteins control cell proliferation and differentiation in many biological systems. They are overexpressed in tumors of several origins, and their expression level correlates with poor prognosis. MSI proteins control gene expression by binding RNA and regulating its translation. They contain two RNA recognition motif (RRM) domains, which recognize a defined sequence element. The relative contribution of each nucleotide to the binding affinity and specificity is unknown. We analyzed the binding specificity of three MSI family RRM domains using a quantitative fluorescence anisotropy assay. We found that the core element driving recognition is the sequence UAG. Nucleotides outside …
Hnrnp A1 And Secondary Structure Coordinate Alternative Splicing Of Mag, Nancy Zearfoss, Emily Johnson, Sean Ryder
Hnrnp A1 And Secondary Structure Coordinate Alternative Splicing Of Mag, Nancy Zearfoss, Emily Johnson, Sean Ryder
Sean P. Ryder
Myelin-associated glycoprotein (MAG) is a major component of myelin in the vertebrate central nervous system. MAG is present in the periaxonal region of the myelin structure, where it interacts with neuronal proteins to inhibit axon outgrowth and protect neurons from degeneration. Two alternatively spliced isoforms of Mag mRNA have been identified. The mRNA encoding the shorter isoform, known as S-MAG, contains a termination codon in exon 12, while the mRNA encoding the longer isoform, known as L-MAG, skips exon 12 and produces a protein with a longer C-terminal region. L-MAG is required in the central nervous system. How inclusion of …