Cleavage and polyadenylation specificity factor subunit 4 (Cleavage and polyadenylation specificity factor 30 kDa subunit) (CPSF 30 kDa subunit) (NS1 effector domain-binding protein 1) (Neb-1) (No arches homolog)
1_MQEII 6_ ASVDH 11_ IKFDL 16_ EIAVE 21_ QQLGA 26_ QPLPF 31_ PGMDK 36_ SGAAV 41_ CEFFL 46_ KAACG 51_ KGGMC 56_ PFRHI 61_ SGEKT 66_ VVCKH 71_ WLRGL 76_ CKKGD 81_ QCEFL 86_ HEYDM 91_ TKMPE 96_ CYFYS 101_ KFGEC 106_ SNKEC 111_ PFLHI 116_ DPESK 121_ IKDCP 126_ WYDRG 131_ FCKHG 136_ PLCRH 141_ RHTRR 146_ VICVN 151_ YLVGF 156_ CPEGP 161_ SCKFM 166_ HPRFE 171_ LPMGT 176_ TEQPP 181_ LPQQT 186_ QPPAK 191_ QSNNP 196_ PLQRS 201_ SSLIQ 206_ LTSQN 211_ SSPNQ 216_ QRTPQ 221_ VIGVM 226_ QSQNS 231_ SAGNR 236_ GPRPL 241_ EQVTC 246_ YKCGE 251_ KGHYA 256_ NRCTK 261_GHLAF
1: Component of the cleavage and polyadenylation specificity factor (CPSF) complex that play a key role in pre-mRNA 3'-end formation, recognizing the AAUAAA signal sequence and interacting with poly(A) polymerase and other factors to bring about cleavage and poly(A) addition. CPSF4 binds RNA polymers with a preference for poly(U)