Altered hnrnpa1 and tra2a splicing in N1-SRC morphants Prominent among the genes with altered splicing in N1-SRC morphants are hnrnpa1 and tra2a , which exhibit the most highly significant changes in isoform usage ( Fig. 4 C ). hnrnpa1 encodes an RBP with expression enriched in the developing Xenopu s neural plate and neural tube ( Dichmann et al., 2008 ).
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