>1iyxB (B:) observed residues (from ATOM records)
siitdvyareildsrgnptievevytesgafgrgmvpsgastgeyeavelrdgdkarygg
kgvtkavdnvnniiaeaiigydvrdqmaidkamialdgtpnkgklganailgvsiavara
aadylevplyhylggfntkvlptpmmniinggshadnsidfqefmimpvgaptfkealrm
gaevfhalaailksrglatsvgdeggfapnlgsneegfeviieaiekagyvpgkdvvlam
daassefydkekgvyvladsgegekttdemikfyeelvskypiisiedgldendwdgfkk
ltdvlgdkvqlvgddlfvtntqklsegiekgiansilikvnqigtltetfeaiemakeag
ytavvshrsgetedstisdiavatnagqiktgslsrtdriakynqllriedqlgevaeyk
glksfynlkaa