Pre-mRNA polyadenylation factor FIP1
UniProtKB accession: P45976
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Go to UniProtKB: P45976
UniProtKB description: Polymerase-regulating component of the cleavage and polyadenylation factor (CPF) complex, which plays a key role in polyadenylation-dependent pre-mRNA 3'-end formation and cooperates with cleavage factors including the CFIA complex and NAB4/CFIB. Pre-mRNA polyadenylation factor that directly interacts with poly(A) polymerase PAP1. This inhibits the extension of an oligo(A) primer by limiting access of the RNA substrate to the C-terminal RNA binding domain of PAP1. Seems to tether PAP1 to the cleavage factor I.
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