Phylogenetic and molecular characterization of the splicing factor RBM4.

ABSTRACT: The mammalian multi-functional RNA-binding motif 4 (RBM4) protein regulates alterative splicing of precursor mRNAs and thereby affects pancreas and muscle cell differentiation. RBM4 homologs exist in all metazoan lineages. The C-terminal unstructured domain of RBM4 is evolutionarily divergent and contains stretches of low-complexity sequences, including single amino acid and/or dipeptide repeats. Here we examined the splicing activity, phosphorylation potential, and subcellular localization of RBM4 homologs from a wide range of species. The results show that these RBM4 homologs exert different effects on 5' splice site utilization and exon selection, and exhibit different subnuclear localization patterns. Therefore, the C-terminal domain of RBM4 may contribute to functional divergence betw

SUBMITTER: Lu CC 

PROVIDER: S-EPMC3602429 | biostudies-literature | 2013

REPOSITORIES: biostudies-literature