Definition: An RNA-binding protein that recognizes the AAUAAA RNA SEQUENCE at the 3' end of MRNA. It contains four subunits of 30, 73, 100 and 160 kDa molecular size and combines with CLEAVAGE STIMULATION FACTOR to form a stable complex with mRNA that directs the 3' cleavage and polyadenylation reaction.
Other names Subunit, CPSF-73-kDa; Subunit, CPSF-30-kDa; Subunit, CPSF-160-kDa; Subunit, CPSF-100-kDa; Cleavage Polyadenylation Specificity Factor; Cleavage And Polyadenylation Specificity Factor, 7; Cleavage And Polyadenylation Specificity Factor, 3; Cleavage And Polyadenylation Specificity Factor, 1; Cleavage And Polyadenylation Specificity Factor, 1; CPSF 73 kDa Subunit; CPSF 30 kDa Subunit; CPSF 160 kDa Subunit; CPSF 100 kDa Subunit; Cleavage-Polyadenylation Specificity Factor; Cleavage And Polyadenylation Specificity Factor, 7; Cleavage And Polyadenylation Specificity Factor, 3; Cleavage And Polyadenylation Specificity Factor, 1; Cleavage And Polyadenylation Specificity Factor, 1; CPSF-73-kDa Subunit; CPSF-30-kDa Subunit