Chains and heterogens:
PDB Chain Sequences:
>1bzm_ (-) aspdwgyddkngpeqwsklypiangnnqspvdiktsetkhdtslkpisvsynpatakeii nvghsfhvnfedndnrsvlkggpfsdsyrlfqfhfhwgstnehgsehtvdgvkysaelhv ahwnsakysslaeaaskadglavigvlmkvgeanpklqkvldalqaiktkgkrapftnfd pstllpssldfwtypgslthpplyesvtwiickesisvsseqlaqfrsllsnvegdnavp mqhnnrptqplkgrtvrasf