Chains and heterogens:
PDB Chain Sequences:
>2exbA (A:) manvdeyitqlpaganlalmvqkvgasapaidyhsqqmalpastqkvitalaaliqlgpd frftttletkgnvengvlkgdlvarfgadptlkrqdirnmvatlkksgvnqidgnvlidt sifashdkapgwpwndmtqcfsappaaaivdrncfsvslysapkpgdmafirvasyypvt mfsqvrtlprgsaeaqyceldvvpgdlnrftltgclpqrseplplafavqdgasyagail kyelkqagitwsgtllrqtqvnepgtvvaskqsaplhdllkimlkksdnmiadtvfrmig harfnvpgtwragsdavrqilrqqagvdigntiiadgsglsrhnliapatmmqvlqyiaq hdnelnfismlplagydgslqyraglhqagvdgkvsaktgslqgvynlagfittasgqrm afvqylsgyavepadqrnrriplvrfesrlykdiyqnn
>2exbA (A:) deyitqlpaganlalmvqkvgasapaidyhsqqmalpastqkvitalaaliqlgpdfrft ttletkgnvengvlkgdlvarfgadptlkrqdirnmvatlkksgvnqidgnvlidtsifa shdkapgwpwndmtqcfsappaaaivdrncfsvslysapkpgdmafirvasyypvtmfsq vrtlprgsaeaqyceldvvpgdlnrftltgclpqrseplplafavqdgasyagailkyel kqagitwsgtllrqtqvnepgtvvaskqsaplhdllkimlkksdnmiadtvfrmigharf nvpgtwragsdavrqilrqqagvdigntiiadgsglsrhnliapatmmqvlqyiaqhdne lnfismlplagydgslqyraglhqagvdgkvsaktgslqgvynlagfittasgqrmafvq ylsgyavriplvrfesrlykdiyqnn