>3w55A (A:) observed residues (from ATOM records)
pemvrgqvfdvgprytnlsyigegaygmvcsaydnvnkvrvaikkispfehqtycqrtlr
eikillrfrheniigindiiraptieqmkdvyivqdlmetdlykllktqhlsndhicyfl
yqilrglkyihsanvlhrdlkpsnlllnttcdlkicdfglarvadvatrwyrapeimlns
kgytksidiwsvgcilaemlsnrpifpgkhyldqlnhilgilgspsqedlnciinlkarn
yllslphknkvpwnrlfpnadskaldlldkmltfnphkrieveqalahpyleqyydpsde
piaeapfkfdmelddlpkeklkelifeetarfqpg