Chains and heterogens:
PDB Chain Sequences:
>1f3lA (A:) dlqededgvyfssyghygiheemlkdkvrtesyrdfiyqnphifkdkvvldvgcgtgils mfaakagakkviavdqseilyqamdiirlnkledtivlikgkieevslpvekvdviisew mgyfllfesmldsvlyakskylakggsvypdictislvavsdvskhadriafwddvygfn mscmkkavipeavvevvdhktlisdpcdikhidchttsisdlefssdftlrttktamcta vagyfdiyfeknchnrvvfstgpqstkthwkqtifllekpfpvkagealkgkitvhknkk dprslivtltlnsstqtyslq