Chains and heterogens:
PDB Chain Sequences:
>1ff9A (A:) matksvlmlgsgfvtrptldvltdsgikvtvacrtlesakklsagvqhstpisldvndda aldaevakhdlvislipytfhatviksairqkkhvvttsyvspammeldqaakdagitvm neigldpgidhlyaiktieevhaaggkiktflsycgglpapessdnplgykfswssrgvl lalrnaasfykdgkvtnvagpelmatakpyfiypgfafvaypnrdstpykeryqipeadn ivrgtlryqgfpqfikvlvdigflsdeeqpflkeaipwkeatqkivkassaseqdivsti vsnatfesteeqkrivaglkwlgifsdkkitprgnaldtlcatleekmqfeegerdlvml qhkfeienkdgsretrtsslceygapigsggysamaklvgvpcavavkfvldgtisdrgv lapmnskindplmkelkekygieckekvva
>1ff9A (A:) atksvlmlgsgfvtrptldvltdsgikvtvacrtlesakklsagvqhstpisldvnddaa ldaevakhdlvislipfhatviksairqkkhvvttsyvspammeldqaakdagitvmnei gldpgidhlyaiktieevhaaggkiktflsycgglpapessdnplgykfswssrgvllal rnaasfykdgkvtnvagpelmatakpyfiypgfafvaypnrdstpykeryqipeadnivr gtlryqgfpqfikvlvdigflsdeeqpflkeaipwkeatqkivkassaseqdivstivsn atfesteeqkrivaglkwlgifsdkkitprgnaldtlcatleekmqfeegerdlvmlqhk feienkdgsretrtsslceygapigsggysamaklvgvpcavavkfvldgtisdrgvlap mnskindplmkelkekygieckekvva