>1k9aA (A:) observed residues (from ATOM records)
aswpsgteciakynfhgtaeqdlpfckgdvltivavtkdpnwykaknkvgregiipanyv
qkregvkagtklslmpwfhgkitreqaerllyppetglflvrestnypgdytlcvscegk
vehyrimyhasklsideevyfenlmqlvehyttdadglctrlikpkvmegtvaaqdefyr
sgwalnmkelkllqtigkgefgdvmlgdyrgnkvavkcikndataqaflaeasvmtqlrh
snlvqllgviveekgglyivteymakgslvdylrsrgrsvlggdcllkfsldvceameyl
egnnfvhrdlaarnvlvsednvakvsdfgltkeasklpvkwtapealrekkfstksdvws
fgillweiysfgrvpypriplkdvvprvekgykmdapdgcppavydvmkncwhldaatrp
tflqlreqlehirthelhl