Chains and heterogens:
PDB Chain Sequences:
>1pkdA (A:) smenfqkvekigegtygvvykarnkltgevvalkkirldtetegvpstaireisllkeln hpnivklldvihtenklylvfeflhqdlkkfmdasaltgiplpliksylfqllqglafch shrvlhrdlkpqnllintegaikladfglarafgvpvrtythevvtlwyrapeillgcky ystavdiwslgcifaemvtrralfpgdseidqlfrifrtlgtpdevvwpgvtsmpdykps fpkwarqdfskvvppldedgrsllsqmlhydpnkrisakaalahpffqdvtkpvphl
>1pkdB (B:) vpdyhedihtylremevkckpkvgymkkqpditnsmrailvdwlvevgeeyklqnetlhl avnyidrflssmsvlrgklqlvgtaamllaskfeeiyppevaefvyitddtytkkqvlrm ehlvlkvltfdlaaptvnqfltqyflhqqpanckveslamflgelslidadpylkylpsv iagaafhlalytvtgqswpeslirktgytleslkpclmdlhqtylkapqhaqqsirekyk nskyhgvsllnppetlnl
>1pkdC (C:) smenfqkvekigegtygvvykarnkltgevvalkkirldtetegvpstaireisllkeln hpnivklldvihtenklylvfeflhqdlkkfmdasaltgiplpliksylfqllqglafch shrvlhrdlkpqnllintegaikladfglarafgvpvrtythevvtlwyrapeillgcky ystavdiwslgcifaemvtrralfpgdseidqlfrifrtlgtpdevvwpgvtsmpdykps fpkwarqdfskvvppldedgrsllsqmlhydpnkrisakaalahpffqdvtkpvphl
>1pkdD (D:) vpdyhedihtylremevkckpkvgymkkqpditnsmrailvdwlvevgeeyklqnetlhl avnyidrflssmsvlrgklqlvgtaamllaskfeeiyppevaefvyitddtytkkqvlrm ehlvlkvltfdlaaptvnqfltqyflhqqpanckveslamflgelslidadpylkylpsv iagaafhlalytvtgqswpeslirktgytleslkpclmdlhqtylkapqhaqqsirekyk nskyhgvsllnppetlnl