Chains and heterogens:
PDB Chain Sequences:
>1lf1A (A:) svveehgqlsisngelvnergeqvqlkgmsshglqwygqfvnyesmkwlrddwgitvfra amytssggyiddpsvkekvketveaaidlgiyviidwhilsdndpniykeeakdffdems elygdypnviyeianepngsdvtwdnqikpyaeevipvirdndpnnivivgtgtwsqdvh haadnqladpnvmyafhfyagthgqnlrdqvdyaldqgaaifvsewgtsaatgdggvfld eaqvwidfmdernlswanwslthkdessaalmpganptggwteaelspsgtfvrekir
>1lf1A (A:) svveehgqlsisngelvnergeqvqlkgmsshglqwygqfvnyesmkwlrddwgitvfra amytssggyiddpsvkekvketveaaidlgiyviidwhilsdndpniykeeakdffdems elygdypnviyeianepngsdvtwdnqikpyaeevipvirdndpnnivivgtgtwsqdvh haadnqladpnvmyafhfyagthgqnlrdqvdyaldqgaaifvsewgtsaatggvfldea qvwidfmdernlswanwslthkdessaalmpganptggwteaelspsgtfvrekir