>3n3aB (B:) observed residues (from ATOM records)
isainwnkisddkdlevwnrltsnfwlpekvplsndipawqtltvveqqltmrvftgltl
ldtlqnvigapslmpdaltpheeavlsnisfmeavharsyssifstlcqtkdvdaayaws
eenaplqrkaqiiqqhyrgddplkkkiasvflesflfysgfwlpmyfssrgkltntadli
rliirdeavhgyyigykyqknmekislgqreelksfafdlllelydnelqytdelyaetp
waddvkaflcynankalmnlgyeplfpaemaevnpailaals