Chains and heterogens:
PDB Chain Sequences:
>2ex9A (A:) manvdeyitqlpaganlalmvqkvgasapaidyhsqqmalpastqkvitalaaliqlgpd frftttletkgnvengvlkgdlvarfgadptlkrqdirnmvatlkksgvnqidgnvlidt sifashdkapgwpwndmtqcfsappaaaivdrncfsvslysapkpgdmafirvasyypvt mfsqvrtlprgsaeaqyceldvvpgdlnrftltgclpqrseplplafavqdgasyagail kyelkqagitwsgtllrqtqvnepgtvvaskqsaplhdllkimlkksdnmiadtvfrmig harfnvpgtwragsdavrqilrqqagvdigntiiadgsglsrhnliapatmmqvlqyiaq hdnelnfismlplagydgslqyraglhqagvdgkvsaktgslqgvynlagfittasgqrm afvqylsgyavepadqrnrriplvrfesrlykdiyqnn
>2ex9A (A:) tqlpaganlalmvqkvgasapaidyhsqqmalpastqkvitalaaliqlgpdfrftttle tkgnvengvlkgdlvarfgadptlkrqdirnmvatlkksgvnqidgnvlidtsifashdk apgwpwndmtqcfsappaaaivdrncfsvslysapkpgdmafirvasyypvtmfsqvrtl prgsaeaqyceldvvpgdlnrftltgclpqrseplplafavqdgasyagailkyelkqag itwsgtllrqtqvnepgtvvaskqsaplhdllkimlkksdnmiadtvfrmigharfnvpg twragsdavrqilrqqagvdigntiiadgsglsrhnliapatmmqvlqyiaqhdnelnfi smlplagydgslqyraglhqagvdgkvsaktgslqgvynlagfittasgqrmafvqylsg yaveiplvrfesrlykdiyqnn