《英文msh詞典》CPSF 73 kD Subunit
[入口詞] CPSF 73 kD Subunit
[主題詞] Cleavage And Polyadenylation Specificity Factor
[英文釋義] 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 kD molecular size and combines with CLEAVAGE STIMULATION FACTOR to form a stable complex with mRNA that directs the 3' cleavage and polyadenylation reaction.