MeSH definition : A RNA-binding protein that binds to polypyriminidine rich regions in the INTRONS of
messenger RNAs. Polypyrimidine tract-binding protein may be involved in regulating
the ALTERNATIVE SPLICING of mRNAs since its presence on an intronic RNA region that
is upstream of an EXON inhibits the splicing of the exon into the final mRNA product.;
A RNA-binding protein that binds to polypyriminidine rich regions in the INTRONS of
messenger RNAs. Polypyrimidine tract-binding protein may be involved in regulating
the ALTERNATIVE SPLICING of mRNAs since its presence on an intronic RNA region that
is upstream of an EXON inhibits the splicing of the exon into the final mRNA product.