>1k3rA (A:) observed residues (from ATOM records)
mnrvdlslfipdsltaetgdlkiktykvvliaraasifgvkriviyhddadgearfirdi
ltymdtpqylrrkvfpimrelkhvgilpplrtphhptgkpvtgeyrqgltvkrvkkgtlv
digadklalcrekltvnrimsfrvvrlgkeiliepdepedrywgyevldtrrnlaeslkt
vgadvvvatsrnaspitsildevktrmrgareaailfggpykglpeidadiwvntlpgqc
tetvrteeavlatlsvfnmltq