... homologs are poly (A) polymerases. Proc Natl Acad Sci USA 101, 4407–4412.18 Nakanishi T, Kubota H, Ishibashi N, Kumagai S,Watanabe H, Yamashita M, Kashiwabara S, Miyado K& Baba T (2006) ... CPSF, cleavage and polyadenylationspecificity factor; Gal4AD, Gal4 activation domain; Gal4BD, Gal4 DNA-binding domain; GVBD, germinal vesicle breakdown; MAPK, mitogen-activated protein kinase; mPR, ... cDNAs. Primers encompassing a putative ORF were designed as follows: 89, 5¢-ATCGATATGTTCCCAAACTCAATTTTGGGTCG-3¢; 90, 5¢-TAGAGACCAGTTATCTTTTCAG-3¢. Oligo(dT)-primed cDNAfrom SW80 cell line RNA...