Proceedings of the National Academy of Sciences of the United States of America, Vol. 119, No. 48 (November 29, 2022), pp. 1-12 (12 pages) Spliceosome activation is the process of creating the ...

In the first step of spliceosome assembly, an snRNA molecule known as U1 snRNA binds to the 5' splice site at the beginning of the intron. Until now, it had been thought that the binding strength ...

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 ...

The spliceosome, which forms on introns, is composed of proteins and noncoding RNAs called small nuclear RNAs (snRNAs). In the first step of spliceosome assembly, an snRNA molecule known as U1 snRNA ...

In human cells, only a small proportion of the information written in genes is used to produce proteins. How does the cell select this information? A large molecular machine called the spliceosome ...

Researchers at the Centre for Genomic Regulation (CRG) have created the first blueprint of the human spliceosome, the complex molecular machine that edits genetic messages transcribed from DNA, ...