>1k9zA (A:) observed residues (from ATOM records)
alerellvatqavrkaslltkriqsevishkdsttitkndnspvttgdyaaqtiiinaik
snfpddkvvgeesssglsdafvsgilneikandevynknykkddflftndqfplksledv
rqiidfgnyeggrkgrfwcldpidgtkgflrgeqfavclalivdgvvqlgcigcpnlvls
sygaqdlkghesfgyifravrglgafyspssdaeswtkihvrhlkdtkdmitlegvekgh
sshdeqtaiknklniskslhldsqakycllalgladvylrlpiklsyqekiwdhaagnvi
vheaggihtdamedvpldfgngrtlatkgviassgprelhdlvvstscdviqsr