Chains and heterogens:
PDB Chain Sequences:
>1ydrE (E:) gnaaaakkgseqesvkeflakakedflkkwenpaqntahldqferiktlgtgsfgrvmlv khmetgnhyamkildkqkvvklkqiehtlnekrilqavnfpflvklefsfkdnsnlymvm eyvaggemfshlrrigrfsepharfyaaqivltfeylhsldliyrdlkpenllidqqgyi qvtdfgfakrvkgrtwtlcgtpeylapeiilskgynkavdwwalgvliyemaagyppffa dqpiqiyekivsgkvrfpshfssdlkdllrnllqvdltkrfgnlkdgvndiknhkwfatt dwiaiyqrkveapfipkfkgpgdtsnfddyeeeeirvsinekcgkefsef
>1ydrE (E:) vkeflakakedflkkwenpaqntahldqferiktlgtgsfgrvmlvkhmetgnhyamkil dkqkvvklkqiehtlnekrilqavnfpflvklefsfkdnsnlymvmeyvaggemfshlrr igrfsepharfyaaqivltfeylhsldliyrdlkpenllidqqgyiqvtdfgfakrvkgr twtlcgtpeylapeiilskgynkavdwwalgvliyemaagyppffadqpiqiyekivsgk vrfpshfssdlkdllrnllqvdltkrfgnlkdgvndiknhkwfattdwiaiyqrkveapf ipkfkgpgdtsnfddyeeeeirvsinekcgkefsef