>1U7B_1|Chain A|Proliferating cell nuclear antigen|Homo sapiens (9606) MFEARLVQGSILKKVLEALKDLINEACWDISSSGVNLQSMDSSHVSLVQLTLRSEGFDTYRCDRNLAMGVNLTSMSKILKCAGNEDIITLRAEDNADTLALVFEAPNQEKVSDYEMKLMDLDVEQLGIPEQEYSCVVKMPSGEFARICRDLSHIGDAVVISCAKDGVKFSASGELGNGNIKLSQTSNVDKEEEAVTIEMNEPVQLTFALRYLNFFTKATPLSSTVTLSMSADVPLVVEYKIADMGHLKYYLAPKIEDEEGS >1U7B_2|Chain B|SRQGSTQGRLDDFFKVTGSL peptide of Flap endonuclease-1|null SRQGSTQGRLDDFFKVTGSL