Cleavage and polyadenylation specificity factor subunit 7
Protein information
Protein ID: Q8N684
Protein Name : Cleavage and polyadenylation specificity factor subunit 7
Gene : CPSF7
Organism : Homo sapiens
Status : reviewed
Function : Component of the cleavage factor Im (CFIm) complex that functions as an activator of the pre-mRNA 3'-end cleavage and polyadenylation processing required for the maturation of pre-mRNA into functional mRNAs (PubMed:8626397 PubMed:17024186 PubMed:29276085). CFIm contributes to the recruitment of multiprotein complexes on specific sequences on the pre-mRNA 3'-end so called cleavage and polyadenylation signals (pA signals) (PubMed:8626397 PubMed:17024186). Most pre-mRNAs contain multiple pA signals resulting in alternative cleavage and polyadenylation (APA) producing mRNAs with variable 3'-end formation (PubMed:23187700 PubMed:29276085). The CFIm complex acts as a key regulator of cleavage and polyadenylation site choice during APA through its binding to 5'-UGUA-3' elements localized in the 3'-untranslated region (UTR) for a huge number of pre-mRNAs (PubMed:20695905 PubMed:29276085). CPSF7 activates directly the mRNA 3'-processing machinery (PubMed:29276085). Binds to pA signals in RNA substrates (PubMed:8626397 PubMed:17024186).