Chains and heterogens:
PDB Chain Sequences:
>2bwtA (A:) seisrqefqrrrqalveqmqpgsaalifaapevtrsadseypyrqnsdfwyftgfnepea vlvliksddthnhsvlfnrvrdltaeiwfgrrlgqdaapeklgvdralafseinqqlyql lngldvvyhaqgeyayadvivnsaleklrkgsrqnltapatmidwrpvvhemrlfkspee iavlrrageitamahtramekcrpgmfeyhlegeihhefnrhgarypsyntivgsgengc ilhytenecemrdgdlvliaagceykgyagditrtfpvngkftqaqreiydivleslets lrlyrpgtsilevtgevvrimvsglvklgilkgdvdeliaqnahrpffmhglshwlgldv hdvgvygqdrsrilepgmvltvepglyiapdaevpeqyrgigirieddivitetgnenlt asvvkkpeeiealmvaarkq