Chains and heterogens:
PDB Chain Sequences:
>1tfd_ (-) vrwcavndheaskcanfrdsmkkvlpedgpriicvkkasyldcikaiaaheadavtldag lvheagltpnnlkpvvaefygskenpktfyyavalvkkgsnfqlnelqgkkschtglgrs agwnipigllycdlpeprkplekavasffsgscvpcadgadfpqlcqlcpgcgcsssqpy fgysgafkclkdglgdvafvkqetifenlpskderdqyellcldntrkpvdeyeqchlar vpshavvarsvdgkedliwellnqaqehfgkdksgdfqlfssphgknllfkdsaygffk
>1tfd_ (-) vrwcavndheaskcanfrdsmkkvlpedgpriicvkkasyldcikaiaaheadavtldag lvheagltpnnlkpvvaefygskenpktfyyavalvkkgsnfqlnelqgkkschtglgrs agwnipigllycdlpeprkplekavasffsgscvpcadqlcqlcpgcgcsssqpyfgysg afkclkdglgdvafvkqetifenlpskderdqyellcldntrkpvdeyeqchlarvpsha vvarsvdgkedliwellnqaqehfgkdksgdfqlfssphgknllfkdsaygffk