Chains and heterogens:
PDB Chain Sequences:
>1fyuA (A:) vetisfsfsefepgndnltlqgaalitqsgvlqltkinqngmpawdstgrtlyakpvhiw dmttgtvasfetrfsfsieqpytrplpadglvffmgptkskpaqgygylgifnnskqdns yqtlgvefdtfsnpwdppqvphigidvnsirsiktqpfqldngqvanvvikydasskilh avlvypssgaiytiaeivdvkqvlpewvdvglsgatgaqrdaaethdvyswsfqaslpet ndaviptsnhntfai
>1fyuA (A:) vetisfsfsefepgndnltlqgaalitqsgvlqltkinqngmpawdstgrtlyakpvhiw dmttgtvasfetrfsfsieqpytrplpadglvffmgptkskpaqgygylgifnnskqdns yqtlgvefdtfsnpwdppqvphigidvnsirsiktqpfqldngqvanvvikydasskilh avlvypssgaiytiaeivdvkqvlpewvdvglsgatgaqrdaaethdvyswsfqaslpe
>1fyuB (B:) vetisfsfsefepgndnltlqgaalitqsgvlqltkinqngmpawdstgrtlyakpvhiw dmttgtvasfetrfsfsieqpytrplpadglvffmgptkskpaqgygylgifnnskqdns yqtlgvefdtfsnpwdppqvphigidvnsirsiktqpfqldngqvanvvikydasskilh avlvypssgaiytiaeivdvkqvlpewvdvglsgatgaqrdaaethdvyswsfqaslpet ndaviptsnhntfai
>1fyuB (B:) vetisfsfsefepgndnltlqgaalitqsgvlqltkinqngmpawdstgrtlyakpvhiw dmttgtvasfetrfsfsieqpytrplpadglvffmgptkskpaqgygylgifnnskqdns yqtlgvefdtfsnpwdppqvphigidvnsirsiktqpfqldngqvanvvikydasskilh avlvypssgaiytiaeivdvkqvlpewvdvglsgatgaqrdaaethdvyswsfqaslpe