Chains and heterogens:
PDB Chain Sequences:
>1u7bA (A:) mfearlvqgsilkkvlealkdlineacwdisssgvnlqsmdsshvslvqltlrsegfdty rcdrnlamgvnltsmskilkcagnediitlraednadtlalvfeapnqekvsdyemklmd ldveqlgipeqeyscvvkmpsgefaricrdlshigdavviscakdgvkfsasgelgngni klsqtsnvdkeeeavtiemnepvqltfalrylnfftkatplsstvtlsmsadvplvveyk iadmghlkyylapkiedeegs
>1u7bA (A:) mfearlvqgsilkkvlealkdlineacwdisssgvnlqsmdsshvslvqltlrsegfdty rcdrnlamgvnltsmskilkcagnediitlraednadtlalvfeapnqekvsdyemklmd ldveqlgipeqeyscvvkmpsgefaricrdlshigdavviscakdgvkfsasgelgngni klsqtseeeavtiemnepvqltfalrylnfftkatplsstvtlsmsadvplvveykiadm ghlkyylapki