>1w63U (U:) observed residues (from ATOM records)
mmrfmllfsrqgklrlqkwylatsdkerkkmvrelmqvvlarkpkmcsflewrdlkvvyk
ryaslyfccaiegqdnelitlelihryvelldkyfgsvceldiifnfekayfildeflmg
gdvqdtskksvlkaieqadllqeedespr