>2ex6A (A:) observed residues (from ATOM records)
tqlpaganlalmvqkvgasapaidyhsqqmalpastqkvitalaaliqlgpdfrftttle
tkgnvengvlkgdlvarfgadptlkrqdirnmvatlkksgvnqidgnvlidtsifashdk
apgwpwndmtqcfsappaaaivdrncfsvslysapkpgdmafirvasyypvtmfsqvrtl
prgsaeaqyceldvvpgdlnrftltgclpqrseplplafavqdgasyagailkyelkqag
itwsgtllrqtqvnepgtvvaskqsaplhdllkimlkksdnmiadtvfrmigharfnvpg
twragsdavrqilrqqagvdigntiiadgsglsrhnliapatmmqvlqyiaqhdnelnfi
smlplagydgslqyraglhqagvdgkvsaktgslqgvynlagfittasgqrmafvqylsg
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