>1ai2A (A:) observed residues (from ATOM records)
skvvvpaqgkkitlqngklnvpenpiipyiegdgigvdvtpamlkvvdaavekaykgerk
iswmeiytgekstqvygqdvwlpaetldlireyrvaikgplttpvgggirslnvalrqel
dlyiclrpvryyqgtpspvkhpeltdmvifrensediyagiewkadsadaekvikflree
mgvkkirfpehcgigikpcseegtkrlvraaieyaiandrdsvtlvhkgnimkftegafk
dwgyqlareefggelidggpwlkvknpntgkeivikdviadaflqqillrpaeydviacm
nlngdyisdalaaqvggigiapganigdecalfeathgtapkyagqdkvnpgsiilsaem
mlrhmgwteaadlivkgmegainaktvtydferlmdgakllkcsefgdaiienm