>2ri4C (C:) observed residues (from ATOM records) lsaadksnvkaawgkvggnagaygaealermflsfpttktyfphfdlshgsaqvkghgek vaaaltkavghlddlpgtlsdlsdlhahklrvdpvnfkllshsllvtlachlpndftpav hasldkflanvstvltsk