Chains and heterogens:
PDB Chain Sequences:
>1ctpE (E:) gnaaaakkgseqesvkeflakakedflkkwenpaqntahldqferiktlgtgsfgrvmlv khketgnhfamkildkqkvvklkqiehtlnekrilqavnfpflvkleysfkdnsnlymvm eyvpggemfshlrrigrfsepharfyaaqivltfeylhsldliyrdlkpenllidqqgyi qvtdfgfakrvkgrtwtlcgtpeylapeiilskgynkavdwwalgvliyemaagyppffa dqpiqiyekivsgkvrfpshfssdlkdllrnllqvdltkrfgnlkngvndiknhkwfatt dwiaiyqrkveapfipkfkgpgdtsnfddyeeeeirvsinekcgkefsef
>1ctpE (E:) kkgseqesvkeflakakedflkkwenpaqntahldqferiktlgtgsfgrvmlvkhketg nhfamkildkqkvvklkqiehtlnekrilqavnfpflvkleysfkdnsnlymvmeyvpgg emfshlrrigrfsepharfyaaqivltfeylhsldliyrdlkpenllidqqgyiqvtdfg fakrvkgrtwtlcgtpeylapeiilskgynkavdwwalgvliyemaagyppffadqpiqi yekivsgkvrfpshfssdlkdllrnllqvdltkrfgnlkngvndiknhkwfattdwiaiy qrkveapfipkfddyeeeeirvsekcgkefsef