loop_
    _pdbx_feature_sequence_range.id
    _pdbx_feature_sequence_range.seq_range_id
    _pdbx_feature_sequence_range.feature_name
    _pdbx_feature_sequence_range.feature
    _pdbx_feature_sequence_range.feature_type
    _pdbx_feature_sequence_range.feature_assigned_by
    _pdbx_feature_sequence_range.feature_software_id
      1  H1 'secondary structure' '4-helix (alpha-helix)'
                     value  DSSP DSSP
      2  T1 'secondary structure' 'hydrogen-bonded turn in beta-ladder'
                     value  DSSP DSSP
      




