Function
During the late stages of oogenesis, dephosphorylates 'Ser-5' of the heptad repeats YSPTSPS in the C-terminal domain of the largest RNA polymerase II subunit ama-1 (PubMed:17291483). Similarly, dephosphorylates 'Ser-5' of ama-1 in early embryonic cells prior to the activation of the zygotic transcription program at the 4-cell embryonic stage (PubMed:17291483). May dephosphorylate 'Ser-2' of the ama-1 heptad repeats YSPTSPS in embryonic somatic and germline cells (PubMed:23903194).
Sequence
MDIKFEGNDAECTAGLKKASEGSFVLKDHVLIEFKINGKVAGKIKTPCEGVVTFGKGLKPGIVLNKGQVIATVSECTHAIVIKDMCATCGKDLREKGGRAGQRKEQSTANVSMIHHVPELIVSDTLAKEIGSADENNLITNRKLVLLVDLDQTIIHTSDKPMTVDTENHKDITKYNLHSRVYTTKLRPHTTEFLNKMSNMYEMHIVTYGQRQYAHRIAQILDPDARLFEQRILSRDELFSAQHKTNNLKALFPCGDNLVVIIDDRSDVWMYSEALIQIKPYRFFKEVGDINAPKNSKEQMPVQIEDDAHEDKVLEEIERVLTNIHDKYYEKHDLRGSEEVLLDVKEVIKEERHKVLDGCVIVFSGIVPMGEKLERTDIYRLCTQFGAVIVPDVTDDVTHVVGARYGTQKVYQANRLNKFVVTVQWVYACVEKWLKADENLFQLTKESTPPVGRPLGSKYVNDLANMDTIGKAALADMNNEVDEALSDDEDDGDNEDEDDDGNDVGEDKGDENLEEKQEKNEEEMDDVEQNGSVENQSGDALENETDSTSRGQKRKHCPEMEDEEEESDSDNEDDDTPMSYKALLSDSRKKGRIVPENEDDAVFDVDDEKGHAPANIDEEEDDEDNEDEEVPESDDDDEFEDMAALIERQISDAVDEKDQ