Image for splicing factor U2AF

splicing factor U2AF

U2AF (U2 auxiliary factor) is a protein that plays a crucial role in gene expression by helping to process precursor messenger RNA (pre-mRNA). When genes are turned into functional messages, parts called introns must be removed in a process called splicing. U2AF recognizes specific sequences at the edges of introns and recruits other components necessary for splicing. This ensures that the introns are accurately cut out and the remaining exons are joined together, resulting in the correct mRNA used to produce proteins. U2AF’s function is essential for proper gene regulation and cellular function.