>4FLA_1|Chains A, B, C, D|Regulation of nuclear pre-mRNA domain-containing protein 1B|Homo sapiens (9606) MHHHHHHSSGRENLYFQGAGPLLTEELIKALQDLENAASGDATVRQKIASLPQEVQDVSLLEKITDKEAAERLSKTVDEACLLLAEYNGRLAAELEDRRQLARMLVEYTQNQKDVLSEKEKKLEEYKQKLARVTQVRKELKSHIQSLPDLSL