Chains and heterogens:
PDB Chain Sequences:
>1a16_ (-) seisrqefqrrrqalveqmqpgsaalifaapevtrsadseypyrqnsdfwyftgfnepea vlvliksddthnhsvlfnrvrdltaeiwfgrrlgqdaapeklgvdralafseinqqlyql lngldvvyhaqgeyayadvivnsaleklrkgsrqnltapatmidwrpvvhemrlfkspee iavlrrageitamahtramekcrpgmfeyhlegeihhefnrhgarypsyntivgsgengc ilhytenecemrdgdlvlidagceykgyagditrtfpvngkftqaqreiydivleslets lrlyrpgtsilevtgevvrimvsglvklgilkgdvdeliaqnahrpffmhglshwlgldv hdvgvygqdrsrilepgmvltvepglyiapdaevpeqyrgigirieddivitetgnenlt asvvkkpeeiealmvaarkq
>1a16_ (-) seisrqefqrrrqalveqmqpgsaalifaapevtrsadseypyrqnsdfwyftgfnepea vlvliksddthnhsvlfnrvrdltaeiwfgrrlgqdaapeklgvdralafseinqqlyql lngldvvyhaqgeyayadvivnsleklrkgsrqnltapatmidwrpvvhemrlfkspeei avlrrageitamahtramekcrpgmfeyhlegeihhefnrhgarypsyntivgsgengci lhytenecemrdgdlvlidagceykgyagditrtfpvngkftqaqreiydivlesletsl rlyrpgtsilevtgevvrimvsglvklgilkgdvdeliaqnahrpffmhglshwlgldvh dvgvygqdrsrilepgmvltvepglyiapdaevpeqyrgigirieddivitetgnenlta svvkkpeeiealmvaarkq