Chains and heterogens:
PDB Chain Sequences:
>3zpbE (E:) mekivllfaivslvksdqicigyhannsteqvdtimeknvtvthaqdilekkhngklcdl dgvkplilrdcsvagwllgnpmcdefinvpewsyivekanpvndlcypgdfndyeelkhl lsrinhfekiqiipksswssheaslgvssacpyqgkssffrnvvwlikknstyptikrsy nntnqedllvlwgihhpndaadqtklyqnpttyisvgtstlnqrlvpriatrskvngqsg rmeffwtilkpndainfesngnfiapeyaykivkkgdstimkseleygncntkcqtpmga inssmpfhnihpltigecpkyvksnrlvlatglrnspqre
>3zpbE (E:) dqicigyhannsteqvdtimeknvtvthaqdilekkhngklcdldgvkplilrdcsvagw llgnpmcdefinvpewsyivekanpvndlcypgdfndyeelkhllsrinhfekiqiipks swssheaslgvssacpyqgkssffrnvvwlikknstyptikrsynntnqedllvlwgihh pndaadqtklyqnpttyisvgtstlnqrlvpriatrskvngqsgrmeffwtilkpndain fesngnfiapeyaykivkkgdstimkseleygncntkcqtpmgainssmpfhnihpltig ecpkyvksnrlvlatglrnsp
>3zpbF (F:) glfgaiagfieggwqgmvdgwygyhhsneqgsgyaadkestqkaidgvtnkvnsiidkmn tqfeavgrefnnlerrienlnkkmedgfldvwtynaellvlmenertldfhdsnvknlyd kvrlqlrdnakelgngcfefyhkcdnecmesvrngtydyp
>3zpbF (F:) glfgaiagfieggwqgmvdgwygyhhsneqgsgyaadkestqkaidgvtnkvnsiidkmn tqfeavgrefnnlerrienlnkkmedgfldvwtynaellvlmenertldfhdsnvknlyd kvrlqlrdnakelgngcfefyhkcdncmesvrngtyd