>3k88B (B:) observed residues (from ATOM records)
fetvasfdfrdalskastpvtvvatngpfglagltcsavcsvcdrpptvllcinrksyaa
giiksngvlsvnwlaagqavisqtfagvgsvpmeerfadkgwqtiatgapyrmdaavsfd
ctianivdvgshsvifaevvarnhaeectpliyhrrqyattrsl