Chains and heterogens:
PDB Chain Sequences:
>1fx8A (A:) tlkgqciaeflgtglliffgvgcvaalkvagasfgqweisviwglgvamaiyltagvsga hlnpavtialwlfacfdkrkvipfivsqvagafcaaalvyglyynlffdfeqthhivrgs vesvdlagtfstypnphinfvqafavemvitailmglilaltddgngvprgplaplligl liavigasmgpltgfamnpardfgpkvfawlagwgnvaftggrdipyflvplfgpivgai vgafayrkligrhl