Chains and heterogens:
PDB Chain Sequences:
>2xe1A (A:) aevynkdgnkldlygkvdglhyfsddksvdgdqtymrlgfkgetqvtdqltgygqweyqi qgnapesennswtrvafaglkfqdigsfdygrnygvvydvtswtdvlpefggdtygsdnf mqqrgngfatyrntdffglvdglnfavqyqgqngsvsgendpdftghgitnngrkalrqn gdgvggsitydyegfgvgaavssskrtwdqnntgligtgdraetytgglkydanniylaa qytqtynatrvgslgwankaqnfeavaqyqfdfglrpsvaylqskgknlgvvagrnydde dilkyvdvgatyyfnknmstyvdykinllddnqftraagintddivalglvyqf