CUGBP Elav Like Family, Member 3 (CELF3)

CELF proteins, including CELF3, bound RNA containing muscle-specific splicing enhancer (MSE) elements and could activate MSE-dependent exon inclusion of cardiac troponin T (TNNT2) minigenes in transfected quail fibroblasts.The deduced 462-amino acid protein contains 2 N-terminal RNA recognition motifs (RRMs), a C-terminal RRM, several potential phosphorylation sites, and a nuclear localization signal near the C terminus. activated inclusion of exon 10 in a tau (MAPT) minigene. Deletion and mutation analyses showed that the activity of TNRC4 on tau exon 10 splicing required RRM2 in TNRC4 and an intronic element in tau pre-mRNA. The polyglutamine sequence of TNRC4 had no effect on tau exon 10 splicing. Tnrc4 -/- mice exhibited decreased inclusion of exon 10 in tau mRNA.