>5y9zB (B:) observed residues (from ATOM records)
pnykllyfnmrgraeiiryifayldikyedhrieqadwpkikptlpfgkipvlevegltl
hqslaiaryltkntdlagkteleqcqvdavvdtlddfmslfpwaeenqdlkertfndllt
rqaphllkdldtylgdkewfignyvtwadfywdicsttllvlkpdllgiyprlvslrnkv
qaipaisawilkrpqtkl