>1xi9A (A:) observed residues (from ATOM records)
siraskralsveyparelekkgikvirlnigdpvkfdfqppehmkeayckaikeghnyyg
dseglpelrkaiverekrkngvditpddvrvtaavtealqlifgalldpgdeilvpgpsy
ppytglvkfyggkpveyrtieeedwqpdiddirkkitdrtkaiavinpnnptgalydkkt
leeilniageyeipvisdeiydlmtyegehispgsltkdvpvivmnglskvyfatgwrlg
ymyfvdpenklsevreaidrlarirlcpntpaqfaaiagltgpmdylkeymkklkerrdy
iykrlneipgisttkpqgafyifpkievgpwkndkefvldvlhnahvlfvhgsgfgeyga
ghfravflppieileeamdrfekfmker