>1k9aB (B:) observed residues (from ATOM records)
iqaswpsgteciakynfhgtaeqdlpfckgdvltivavtkdpnwykaknkvgregiipan
yvqkregvkagtklslmpwfhgkitreqaerllyppetglflvrestnypgdytlcvsce
gkvehyrimyhasklsideevyfenlmqlvehyttdadglctrlikpkvmegtvaaqdef
yrsgwalnmkelkllqtigkgefgdvmlgdyrgnkvavkcikndataqaflaeasvmtql
rhsnlvqllgviveekgglyivteymakgslvdylrsrgrsvlggdcllkfsldvceame
ylegnnfvhrdlaarnvlvsednvakvsdfgltkeagklpvkwtapealrekkfstksdv
wsfgillweiysfgrvpypriplkdvvprvekgykmdapdgcppavydvmkncwhldaat
rptflqlreqlehirthelhl