SF3B7

SF3B7, also known as SF3B7 or SF3B7-like protein 1, is a gene that encodes a protein component of the spliceosome. The spliceosome is a large and dynamic molecular machine that is essential for RNA splicing in eukaryotic cells. RNA splicing is the process by which non-coding regions of a gene, called introns, are removed and coding regions, called exons, are joined together to form messenger RNA (mRNA). This mRNA then serves as a template for protein synthesis.

The SF3B7 protein is a subunit of the U2 auxiliary factor (U2AF) complex, which plays a critical role in the early stages of spliceosome assembly. U2AF is composed of two subunits, U2AF65 and U2AF35, and SF3B7 interacts with these subunits. This interaction is crucial for recognizing the branch point sequence within the intron, a key step in defining the intron boundaries for splicing.

Mutations or alterations in SF3B7 have been linked to certain diseases. For instance, dysregulation of SF3B7 has been implicated in some forms of cancer, where aberrant splicing can lead to the production of non-functional or oncogenic proteins. Research into the precise mechanisms by which SF3B7 contributes to splicing fidelity and its role in disease pathogenesis is ongoing. Understanding SF3B7's function is important for unraveling the complexities of gene expression regulation and for developing potential therapeutic strategies.