Chains and heterogens:
PDB Chain Sequences:
>6a3hA (A:) dndsvveehgqlsisngelvnergeqvqlkgmsshglqwygqfvnyesmkwlrddwginv fraamytssggyiddpsvkekvkeaveaaidldiyviidwhilsdndpniykeeakdffd emselygdypnviyeianepngsdvtwgnqikpyaeevipiirnndpnniiivgtgtwsq dvhhaadnqladpnvmyafhfyagthgqnlrdqvdyaldqgaaifvsewgtsaatgdggv fldeaqvwidfmdernlswanwslthkdessaalmpganptggwteaelspsgtfvreki res
>6a3hA (A:) svveehgqlsisngelvnergeqvqlkgmsshglqwygqfvnyesmkwlrddwginvfra amytssggyiddpsvkekvkeaveaaidldiyviidwhilsdndpniykeeakdffdems elygdypnviyeianepngsdvtwgnqikpyaeevipiirnndpnniiivgtgtwsqdvh haadnqladpnvmyafhfyagthgqnlrdqvdyaldqgaaifvsewgtsaatgdggvfld eaqvwidfmdernlswanwslthkdessaalmpganptggwteaelspsgtfvrekires