During pre-mRNA splicing, the introns of the pre-mRNA are removed and the exons to be translated are joined together by a large RNA and protein complex termed the spliceosome. The spliceosome ...

What's the difference between mRNA and pre-mRNA? It's all about splicing of introns. See how one RNA sequence can exist in nearly 40,000 different forms.

Human genes that encode proteins often contain non-coding segments known as introns. Removing introns is crucial for the proper expression of genetic information. Understanding how our cells ...

In multicellular organisms, the earliest products of transcription, called pre-mRNAs, undergo a molecular makeover before shipping out to the cytoplasm, where the modified mRNAs spell out the recipe ...