Chains and heterogens:
PDB Chain Sequences:
>1g1hA (A:) memekefeqidksgswaaiyqdirheasdfpcrvaklpknknrnryrdvspfdhsriklh qedndyinaslikmeeaqrsyiltqgplpntcghfwemvweqksrgvvmlnrvmekgslk caqywpqkeekemifedtnlkltlisediksyytvrqlelenlttqetreilhfhyttwp dfgvpespasflnflfkvresgslspehgpvvvhasagigrsgtfcladtclllmdkrkd pssvdikkvllemrkfrmgliqtadqlrfsylaviegakfimgdssvqdqwkelshed