Chains and heterogens:
PDB Chain Sequences:
>1tdf_ (-) gttkhskllilgsgpagytaavyaaranlqpvlitgmekggqlttttevenwpgdpndlt gpllmermhehatkfeteiifdhinkvdlqnrpfrlngdngeytcdaliiatgasarylg lpseeafkgrgvsacatsdgffyrnqkvavigggntaveealylsniasevhlihrrdgf raekilikrlmdkvengniilhtnrtleevtgdqmgvtgvrlrdtqnsdniesldvaglf vaighspntaifegqlelengyikvqsgihgnatqtsipgvfaagdvmdhiyrqaitsag tgcmaaldaeryldgl