{
  "num_stacks": 3,
  "stacks": [
    {
      "index": 1,
      "num_nts": 2,
      "nts_short": "FA",
      "nts_long": "///A/33,///B/7"
    },
    {
      "index": 2,
      "num_nts": 2,
      "nts_short": "YU",
      "nts_long": "///A/65,///B/4"
    },
    {
      "index": 3,
      "num_nts": 3,
      "nts_short": "UFA",
      "nts_long": "///B/2,///A/71,///B/3"
    }
  ],
  "nonStack": {
    "num_nts": 5,
    "nts_short": "UUUUU",
    "nts_long": "///B/1,///B/5,///B/6,///B/8,///B/9"
  },
  "num_atom2bases": 1,
  "atom2bases": [
    {
      "index": 1,
      "type": "phosphate",
      "atom": "///B/4/O5'",
      "nt": "///B/4",
      "vert_dist": 3.105
    }
  ],
  "num_ssSegments": 1,
  "ssSegments": [
    {
      "index": 1,
      "num_nts": 9,
      "nts_short": "UUAUUUAUU",
      "nts_long": "///B/1,///B/2,///B/3,///B/4,///B/5,///B/6,///B/7,///B/8,///B/9"
    }
  ],
  "num_splayUnits": 3,
  "splayUnits": [
    {
      "index": 1,
      "num_nts": 2,
      "nts_short": "UU",
      "nts_long": "///B/1,///B/2"
    },
    {
      "index": 2,
      "num_nts": 2,
      "nts_short": "UU",
      "nts_long": "///B/4,///B/5"
    },
    {
      "index": 3,
      "num_nts": 2,
      "nts_short": "UU",
      "nts_long": "///B/8,///B/9"
    }
  ],
  "dbn": {
    "all_chains": {
      "num_nts": 9,
      "num_chars": 9,
      "bseq": "UUAUUUAUU",
      "sstr": ".........",
      "form": "........-"
    },
    "m1_chain_B": {
      "num_nts": 9,
      "num_chars": 9,
      "bseq": "UUAUUUAUU",
      "sstr": ".........",
      "form": "........-"
    }
  },
  "chains": {
    "m1_chain_B": {
      "num_nts": 9,
      "bseq": "UUAUUUAUU",
      "sstr": ".........",
      "form": "........-",
      "helical_rise": 4.367,
      "helical_rise_std": 1.674,
      "helical_axis": [
        -0.842,
        -0.381,
        0.383
      ],
      "point1": [
        17.557,
        7.206,
        0.058
      ],
      "point2": [
        -12.022,
        -6.172,
        13.505
      ],
      "num_chars": 25,
      "suite": "U2uU2[A0bU0kU1cU!!A1oU4pU"
    }
  },
  "num_nts": 9,
  "nts": [
    {
      "index": 1,
      "index_chain": 1,
      "chain_name": "B",
      "nt_resnum": 1,
      "nt_name": "U",
      "nt_code": "U",
      "nt_id": "///B/1",
      "linked_nts": [
        null,
        "///B/2"
      ],
      "nt_type": "RNA",
      "dbn": ".",
      "summary": "anti,~C2'-endo,non-stack,non-pair-contact,ss-non-loop,splayed-apart",
      "alpha": null,
      "beta": null,
      "gamma": 178.411,
      "delta": 147.101,
      "epsilon": -91.312,
      "zeta": -63.206,
      "epsilon_zeta": -28.106,
      "bb_type": "--",
      "chi": -129.661,
      "glyco_bond": "anti",
      "C5prime_xyz": [
        -2.134,
        8.735,
        -0.427
      ],
      "P_xyz": [
        null,
        null,
        null
      ],
      "form": ".",
      "ssZp": 1.038,
      "Dp": 0.859,
      "splay_angle": 119.194,
      "splay_distance": 18.439,
      "splay_ratio": 0.863,
      "d22": 13.188,
      "d64": 16.510,
      "eta": null,
      "theta": null,
      "eta_prime": null,
      "theta_prime": null,
      "eta_base": null,
      "theta_base": null,
      "v0": -22.728,
      "v1": 38.291,
      "v2": -37.777,
      "v3": 26.295,
      "v4": -2.645,
      "amplitude": 39.189,
      "phase_angle": 164.575,
      "puckering": "C2'-endo",
      "sugar_class": "~C2'-endo",
      "bin": "inc",
      "cluster": "__",
      "suiteness": 0.000,
      "filter_rmsd": 0.096,
      "frame": {
        "rmsd": 0.025,
        "origin": [
          20.009,
          10.824,
          11.628
        ],
        "x_axis": [
          -0.407,
          0.635,
          0.656
        ],
        "y_axis": [
          -0.504,
          0.443,
          -0.742
        ],
        "z_axis": [
          -0.762,
          -0.633,
          0.140
        ],
        "quaternion": [
          0.542,
          -0.050,
          -0.654,
          0.525
        ]
      }
    },
    {
      "index": 2,
      "index_chain": 2,
      "chain_name": "B",
      "nt_resnum": 2,
      "nt_name": "U",
      "nt_code": "U",
      "nt_id": "///B/2",
      "linked_nts": [
        "///B/1",
        "///B/3"
      ],
      "nt_type": "RNA",
      "dbn": ".",
      "summary": "turn,anti,~C2'-endo,non-pair-contact,ss-non-loop,phosphate,splayed-apart",
      "alpha": -59.861,
      "beta": 168.663,
      "gamma": -165.085,
      "delta": 134.489,
      "epsilon": -107.011,
      "zeta": -73.403,
      "epsilon_zeta": -33.608,
      "bb_type": "--",
      "chi": -152.129,
      "glyco_bond": "anti",
      "C5prime_xyz": [
        -2.504,
        8.775,
        1.062
      ],
      "P_xyz": [
        -1.996,
        11.180,
        0.112
      ],
      "form": ".",
      "ssZp": 2.649,
      "Dp": 1.632,
      "splay_angle": 63.022,
      "splay_distance": 10.131,
      "splay_ratio": 0.523,
      "d22": null,
      "d64": null,
      "eta": -29.696,
      "theta": -125.524,
      "eta_prime": 4.648,
      "theta_prime": -108.889,
      "eta_base": 34.262,
      "theta_base": -75.673,
      "v0": -31.806,
      "v1": 39.583,
      "v2": -31.753,
      "v3": 14.279,
      "v4": 10.826,
      "amplitude": 38.672,
      "phase_angle": 145.195,
      "puckering": "C2'-endo",
      "sugar_class": "~C2'-endo",
      "bin": "22t",
      "cluster": "2u",
      "suiteness": 0.401,
      "filter_rmsd": 0.102,
      "frame": {
        "rmsd": 0.050,
        "origin": [
          10.301,
          1.733,
          -1.144
        ],
        "x_axis": [
          0.583,
          -0.589,
          -0.559
        ],
        "y_axis": [
          0.775,
          0.609,
          0.167
        ],
        "z_axis": [
          0.242,
          -0.531,
          0.812
        ],
        "quaternion": [
          0.867,
          0.201,
          0.231,
          -0.394
        ]
      }
    },
    {
      "index": 3,
      "index_chain": 3,
      "chain_name": "B",
      "nt_resnum": 3,
      "nt_name": "A",
      "nt_code": "A",
      "nt_id": "///B/3",
      "linked_nts": [
        "///B/2",
        "///B/4"
      ],
      "nt_type": "RNA",
      "dbn": ".",
      "summary": "turn,anti,~C2'-endo,non-pair-contact,ss-non-loop,phosphate",
      "alpha": -67.587,
      "beta": 171.361,
      "gamma": 59.832,
      "delta": 133.801,
      "epsilon": -85.754,
      "zeta": 81.292,
      "epsilon_zeta": 192.955,
      "bb_type": "--",
      "chi": -111.912,
      "glyco_bond": "anti",
      "C5prime_xyz": [
        -2.199,
        8.284,
        -2.189
      ],
      "P_xyz": [
        0.093,
        9.549,
        -1.970
      ],
      "form": ".",
      "ssZp": -0.488,
      "Dp": 0.899,
      "splay_angle": 54.147,
      "splay_distance": 8.345,
      "splay_ratio": 0.537,
      "d22": null,
      "d64": null,
      "eta": -176.277,
      "theta": 85.540,
      "eta_prime": -131.119,
      "theta_prime": 93.686,
      "eta_base": -98.075,
      "theta_base": 164.409,
      "v0": -28.445,
      "v1": 37.058,
      "v2": -30.600,
      "v3": 15.115,
      "v4": 8.162,
      "amplitude": 36.032,
      "phase_angle": 148.131,
      "puckering": "C2'-endo",
      "sugar_class": "~C2'-endo",
      "bin": "22p",
      "cluster": "2[",
      "suiteness": 0.180,
      "filter_rmsd": 0.063,
      "frame": {
        "rmsd": 0.043,
        "origin": [
          17.907,
          -0.096,
          5.293
        ],
        "x_axis": [
          0.664,
          0.449,
          -0.598
        ],
        "y_axis": [
          -0.420,
          0.886,
          0.198
        ],
        "z_axis": [
          0.619,
          0.120,
          0.777
        ],
        "quaternion": [
          0.912,
          0.021,
          0.334,
          0.238
        ]
      }
    },
    {
      "index": 4,
      "index_chain": 4,
      "chain_name": "B",
      "nt_resnum": 4,
      "nt_name": "U",
      "nt_code": "U",
      "nt_id": "///B/4",
      "linked_nts": [
        "///B/3",
        "///B/5"
      ],
      "nt_type": "RNA",
      "dbn": ".",
      "summary": "BII,ss-non-loop,cap-donor,cap-acceptor,splayed-apart",
      "alpha": -104.713,
      "beta": -157.055,
      "gamma": 55.704,
      "delta": 152.696,
      "epsilon": -83.094,
      "zeta": 154.032,
      "epsilon_zeta": 122.874,
      "bb_type": "BII",
      "chi": 148.255,
      "glyco_bond": "--",
      "C5prime_xyz": [
        -1.672,
        5.617,
        3.468
      ],
      "P_xyz": [
        -1.068,
        3.082,
        4.153
      ],
      "form": ".",
      "ssZp": 3.042,
      "Dp": 1.945,
      "splay_angle": 96.223,
      "splay_distance": 14.993,
      "splay_ratio": 0.744,
      "d22": 12.639,
      "d64": 13.360,
      "eta": -155.893,
      "theta": 176.039,
      "eta_prime": -143.721,
      "theta_prime": 148.083,
      "eta_base": -127.411,
      "theta_base": 108.801,
      "v0": 16.003,
      "v1": 6.762,
      "v2": -24.582,
      "v3": 34.547,
      "v4": -32.542,
      "amplitude": 34.919,
      "phase_angle": 225.254,
      "puckering": "C4'-endo",
      "sugar_class": "--",
      "bin": "22p",
      "cluster": "0b",
      "suiteness": 0.056,
      "filter_rmsd": 0.112,
      "frame": {
        "rmsd": 0.062,
        "origin": [
          11.238,
          -0.727,
          10.268
        ],
        "x_axis": [
          0.879,
          -0.023,
          -0.477
        ],
        "y_axis": [
          -0.404,
          0.496,
          -0.769
        ],
        "z_axis": [
          0.254,
          0.868,
          0.426
        ],
        "quaternion": [
          0.837,
          -0.489,
          0.218,
          0.114
        ]
      }
    },
    {
      "index": 5,
      "index_chain": 5,
      "chain_name": "B",
      "nt_resnum": 5,
      "nt_name": "U",
      "nt_code": "U",
      "nt_id": "///B/5",
      "linked_nts": [
        "///B/4",
        "///B/6"
      ],
      "nt_type": "RNA",
      "dbn": ".",
      "summary": "syn,~C3'-endo,BI,non-stack,non-pair-contact,ss-non-loop,splayed-apart",
      "alpha": -84.366,
      "beta": -178.194,
      "gamma": -84.630,
      "delta": 73.913,
      "epsilon": -176.224,
      "zeta": -99.569,
      "epsilon_zeta": -76.655,
      "bb_type": "BI",
      "chi": 63.333,
      "glyco_bond": "syn",
      "C5prime_xyz": [
        -5.722,
        5.057,
        1.546
      ],
      "P_xyz": [
        -8.276,
        5.510,
        2.165
      ],
      "form": ".",
      "ssZp": -3.069,
      "Dp": 4.123,
      "splay_angle": 79.910,
      "splay_distance": 12.315,
      "splay_ratio": 0.653,
      "d22": 6.295,
      "d64": 7.307,
      "eta": 82.407,
      "theta": 140.596,
      "eta_prime": 57.148,
      "theta_prime": 137.168,
      "eta_base": 89.938,
      "theta_base": 108.362,
      "v0": -19.891,
      "v1": -7.728,
      "v2": 29.655,
      "v3": -42.904,
      "v4": 39.829,
      "amplitude": 42.780,
      "phase_angle": 46.116,
      "puckering": "C4'-exo",
      "sugar_class": "~C3'-endo",
      "bin": "23m",
      "cluster": "0k",
      "suiteness": 0.021,
      "filter_rmsd": 0.098,
      "frame": {
        "rmsd": 0.029,
        "origin": [
          3.634,
          4.444,
          -1.574
        ],
        "x_axis": [
          -0.335,
          0.380,
          -0.862
        ],
        "y_axis": [
          -0.701,
          0.511,
          0.497
        ],
        "z_axis": [
          0.629,
          0.771,
          0.095
        ],
        "quaternion": [
          0.564,
          -0.122,
          0.662,
          0.480
        ]
      }
    },
    {
      "index": 6,
      "index_chain": 6,
      "chain_name": "B",
      "nt_resnum": 6,
      "nt_name": "U",
      "nt_code": "U",
      "nt_id": "///B/6",
      "linked_nts": [
        "///B/5",
        "///B/7"
      ],
      "nt_type": "RNA",
      "dbn": ".",
      "summary": "anti,~C3'-endo,non-stack,non-pair-contact,ss-non-loop,phosphate",
      "alpha": 141.805,
      "beta": -176.172,
      "gamma": -175.226,
      "delta": 72.171,
      "epsilon": -104.458,
      "zeta": -118.629,
      "epsilon_zeta": 14.170,
      "bb_type": "--",
      "chi": -112.070,
      "glyco_bond": "anti",
      "C5prime_xyz": [
        -3.118,
        8.625,
        -1.304
      ],
      "P_xyz": [
        -4.197,
        9.399,
        -3.611
      ],
      "form": ".",
      "ssZp": 1.979,
      "Dp": 4.409,
      "splay_angle": 53.784,
      "splay_distance": 9.851,
      "splay_ratio": 0.453,
      "d22": null,
      "d64": null,
      "eta": 153.835,
      "theta": -162.296,
      "eta_prime": 139.694,
      "theta_prime": -165.352,
      "eta_base": 100.220,
      "theta_base": 178.037,
      "v0": -13.251,
      "v1": -15.002,
      "v2": 34.683,
      "v3": -44.336,
      "v4": 36.632,
      "amplitude": 43.190,
      "phase_angle": 36.581,
      "puckering": "C4'-exo",
      "sugar_class": "~C3'-endo",
      "bin": "33t",
      "cluster": "1c",
      "suiteness": 0.261,
      "filter_rmsd": 0.108,
      "frame": {
        "rmsd": 0.054,
        "origin": [
          -8.011,
          7.131,
          1.398
        ],
        "x_axis": [
          -0.004,
          0.034,
          -0.999
        ],
        "y_axis": [
          0.630,
          -0.776,
          -0.029
        ],
        "z_axis": [
          -0.776,
          -0.630,
          -0.018
        ],
        "quaternion": [
          0.225,
          0.669,
          0.248,
          -0.664
        ]
      }
    },
    {
      "index": 7,
      "index_chain": 7,
      "chain_name": "B",
      "nt_resnum": 7,
      "nt_name": "A",
      "nt_code": "A",
      "nt_id": "///B/7",
      "linked_nts": [
        "///B/6",
        "///B/8"
      ],
      "nt_type": "RNA",
      "dbn": ".",
      "summary": "anti,~C3'-endo,non-pair-contact,ss-non-loop,phosphate",
      "alpha": 74.691,
      "beta": -69.618,
      "gamma": -68.978,
      "delta": 90.228,
      "epsilon": -122.423,
      "zeta": -70.525,
      "epsilon_zeta": -51.898,
      "bb_type": "--",
      "chi": -145.478,
      "glyco_bond": "anti",
      "C5prime_xyz": [
        -1.936,
        8.749,
        0.965
      ],
      "P_xyz": [
        -2.867,
        10.513,
        2.776
      ],
      "form": ".",
      "ssZp": 4.244,
      "Dp": 4.627,
      "splay_angle": 66.580,
      "splay_distance": 9.680,
      "splay_ratio": 0.550,
      "d22": null,
      "d64": null,
      "eta": -90.753,
      "theta": 174.512,
      "eta_prime": -93.915,
      "theta_prime": 167.162,
      "eta_base": -106.951,
      "theta_base": 110.654,
      "v0": 1.625,
      "v1": -19.521,
      "v2": 27.743,
      "v3": -27.721,
      "v4": 17.176,
      "amplitude": 28.796,
      "phase_angle": 15.545,
      "puckering": "C3'-endo",
      "sugar_class": "~C3'-endo",
      "bin": "trig",
      "cluster": "!!",
      "suiteness": 0.000,
      "filter_rmsd": 0.153,
      "frame": {
        "rmsd": 0.145,
        "origin": [
          -13.304,
          -0.611,
          -1.616
        ],
        "x_axis": [
          -0.553,
          -0.752,
          0.359
        ],
        "y_axis": [
          0.830,
          -0.463,
          0.310
        ],
        "z_axis": [
          -0.067,
          0.469,
          0.880
        ],
        "quaternion": [
          -0.465,
          0.086,
          0.229,
          0.851
        ]
      }
    },
    {
      "index": 8,
      "index_chain": 8,
      "chain_name": "B",
      "nt_resnum": 8,
      "nt_name": "U",
      "nt_code": "U",
      "nt_id": "///B/8",
      "linked_nts": [
        "///B/7",
        "///B/9"
      ],
      "nt_type": "RNA",
      "dbn": ".",
      "summary": "syn,~C2'-endo,BII,non-stack,ss-non-loop,splayed-apart",
      "alpha": -73.205,
      "beta": -176.586,
      "gamma": -58.607,
      "delta": 155.595,
      "epsilon": -68.873,
      "zeta": -163.967,
      "epsilon_zeta": 95.094,
      "bb_type": "BII",
      "chi": 36.999,
      "glyco_bond": "syn",
      "C5prime_xyz": [
        -5.458,
        3.894,
        0.489
      ],
      "P_xyz": [
        -7.808,
        3.032,
        -0.382
      ],
      "form": ".",
      "ssZp": 1.031,
      "Dp": 0.555,
      "splay_angle": 144.598,
      "splay_distance": 18.381,
      "splay_ratio": 0.953,
      "d22": 11.050,
      "d64": 14.109,
      "eta": 86.763,
      "theta": -124.191,
      "eta_prime": 103.831,
      "theta_prime": 178.665,
      "eta_base": 57.685,
      "theta_base": 102.396,
      "v0": -20.502,
      "v1": 39.477,
      "v2": -40.993,
      "v3": 31.161,
      "v4": -7.192,
      "amplitude": 41.591,
      "phase_angle": 170.273,
      "puckering": "C2'-endo",
      "sugar_class": "~C2'-endo",
      "bin": "32m",
      "cluster": "1o",
      "suiteness": 0.255,
      "filter_rmsd": 0.098,
      "frame": {
        "rmsd": 0.038,
        "origin": [
          -11.747,
          3.874,
          6.819
        ],
        "x_axis": [
          -0.795,
          0.604,
          0.056
        ],
        "y_axis": [
          -0.578,
          -0.726,
          -0.372
        ],
        "z_axis": [
          -0.183,
          -0.328,
          0.927
        ],
        "quaternion": [
          0.318,
          -0.034,
          -0.188,
          0.928
        ]
      }
    },
    {
      "index": 9,
      "index_chain": 9,
      "chain_name": "B",
      "nt_resnum": 9,
      "nt_name": "U",
      "nt_code": "U",
      "nt_id": "///B/9",
      "linked_nts": [
        "///B/8",
        null
      ],
      "nt_type": "RNA",
      "dbn": ".",
      "summary": "anti,~C2'-endo,non-stack,ss-non-loop,phosphate,splayed-apart",
      "alpha": 79.962,
      "beta": 154.125,
      "gamma": 55.680,
      "delta": 144.457,
      "epsilon": null,
      "zeta": null,
      "epsilon_zeta": null,
      "bb_type": "--",
      "chi": -130.767,
      "glyco_bond": "anti",
      "C5prime_xyz": [
        -2.116,
        8.755,
        -0.472
      ],
      "P_xyz": [
        0.447,
        9.220,
        0.051
      ],
      "form": "-",
      "ssZp": null,
      "Dp": null,
      "splay_angle": null,
      "splay_distance": null,
      "splay_ratio": null,
      "d22": null,
      "d64": null,
      "eta": null,
      "theta": null,
      "eta_prime": null,
      "theta_prime": null,
      "eta_base": null,
      "theta_base": null,
      "v0": -22.196,
      "v1": 36.153,
      "v2": -35.322,
      "v3": 24.022,
      "v4": -1.446,
      "amplitude": 36.903,
      "phase_angle": 163.171,
      "puckering": "C2'-endo",
      "sugar_class": "~C2'-endo",
      "bin": "22p",
      "cluster": "4p",
      "suiteness": 0.049,
      "filter_rmsd": 0.096,
      "frame": {
        "rmsd": 0.024,
        "origin": [
          -13.588,
          -14.394,
          7.674
        ],
        "x_axis": [
          0.661,
          0.227,
          0.715
        ],
        "y_axis": [
          0.114,
          0.911,
          -0.395
        ],
        "z_axis": [
          -0.742,
          0.343,
          0.576
        ],
        "quaternion": [
          0.887,
          -0.208,
          -0.410,
          0.032
        ]
      }
    }
  ],
  "num_hbonds": 56,
  "hbonds": [
    {
      "index": 1,
      "atom1_serNum": 41,
      "atom2_serNum": 100,
      "donAcc_type": "standard",
      "distance": 3.656,
      "atom1_id": "///A/10/O",
      "atom2_id": "///A/13/N",
      "atom_pair": "O:N",
      "residue_pair": "aa:aa"
    },
    {
      "index": 2,
      "atom1_serNum": 60,
      "atom2_serNum": 535,
      "donAcc_type": "standard",
      "distance": 2.794,
      "atom1_id": "///A/11/O",
      "atom2_id": "///A/41/NH1",
      "atom_pair": "O:N",
      "residue_pair": "aa:aa"
    },
    {
      "index": 3,
      "atom1_serNum": 60,
      "atom2_serNum": 536,
      "donAcc_type": "standard",
      "distance": 2.880,
      "atom1_id": "///A/11/O",
      "atom2_id": "///A/41/NH2",
      "atom_pair": "O:N",
      "residue_pair": "aa:aa"
    },
    {
      "index": 4,
      "atom1_serNum": 78,
      "atom2_serNum": 1275,
      "donAcc_type": "standard",
      "distance": 3.203,
      "atom1_id": "///A/12/N",
      "atom2_id": "///B/6/O4",
      "atom_pair": "N:O",
      "residue_pair": "aa:nt"
    },
    {
      "index": 5,
      "atom1_serNum": 86,
      "atom2_serNum": 502,
      "donAcc_type": "standard",
      "distance": 2.843,
      "atom1_id": "///A/12/NZ",
      "atom2_id": "///A/39/OD2",
      "atom_pair": "N:O",
      "residue_pair": "aa:aa"
    },
    {
      "index": 6,
      "atom1_serNum": 100,
      "atom2_serNum": 1275,
      "donAcc_type": "standard",
      "distance": 2.933,
      "atom1_id": "///A/13/N",
      "atom2_id": "///B/6/O4",
      "atom_pair": "N:O",
      "residue_pair": "aa:nt"
    },
    {
      "index": 7,
      "atom1_serNum": 105,
      "atom2_serNum": 535,
      "donAcc_type": "acceptable",
      "distance": 3.252,
      "atom1_id": "///A/13/OG1",
      "atom2_id": "///A/41/NH1",
      "atom_pair": "O:N",
      "residue_pair": "aa:aa"
    },
    {
      "index": 8,
      "atom1_serNum": 122,
      "atom2_serNum": 165,
      "donAcc_type": "standard",
      "distance": 3.092,
      "atom1_id": "///A/14/OE2",
      "atom2_id": "///A/17/NE",
      "atom_pair": "O:N",
      "residue_pair": "aa:aa"
    },
    {
      "index": 9,
      "atom1_serNum": 122,
      "atom2_serNum": 168,
      "donAcc_type": "standard",
      "distance": 2.820,
      "atom1_id": "///A/14/OE2",
      "atom2_id": "///A/17/NH2",
      "atom_pair": "O:N",
      "residue_pair": "aa:aa"
    },
    {
      "index": 10,
      "atom1_serNum": 161,
      "atom2_serNum": 232,
      "donAcc_type": "standard",
      "distance": 3.097,
      "atom1_id": "///A/17/O",
      "atom2_id": "///A/21/N",
      "atom_pair": "O:N",
      "residue_pair": "aa:aa"
    },
    {
      "index": 11,
      "atom1_serNum": 185,
      "atom2_serNum": 247,
      "donAcc_type": "standard",
      "distance": 2.843,
      "atom1_id": "///A/18/O",
      "atom2_id": "///A/22/N",
      "atom_pair": "O:N",
      "residue_pair": "aa:aa"
    },
    {
      "index": 12,
      "atom1_serNum": 185,
      "atom2_serNum": 261,
      "donAcc_type": "standard",
      "distance": 3.260,
      "atom1_id": "///A/18/O",
      "atom2_id": "///A/23/N",
      "atom_pair": "O:N",
      "residue_pair": "aa:aa"
    },
    {
      "index": 13,
      "atom1_serNum": 196,
      "atom2_serNum": 261,
      "donAcc_type": "standard",
      "distance": 3.170,
      "atom1_id": "///A/19/O",
      "atom2_id": "///A/23/N",
      "atom_pair": "O:N",
      "residue_pair": "aa:aa"
    },
    {
      "index": 14,
      "atom1_serNum": 250,
      "atom2_serNum": 252,
      "donAcc_type": "acceptable",
      "distance": 2.870,
      "atom1_id": "///A/22/O",
      "atom2_id": "///A/22/OG1",
      "atom_pair": "O:O",
      "residue_pair": "aa:aa"
    },
    {
      "index": 15,
      "atom1_serNum": 282,
      "atom2_serNum": 313,
      "donAcc_type": "standard",
      "distance": 2.821,
      "atom1_id": "///A/25/O",
      "atom2_id": "///A/27/N",
      "atom_pair": "O:N",
      "residue_pair": "aa:aa"
    },
    {
      "index": 16,
      "atom1_serNum": 292,
      "atom2_serNum": 355,
      "donAcc_type": "standard",
      "distance": 3.330,
      "atom1_id": "///A/26/O",
      "atom2_id": "///A/30/N",
      "atom_pair": "O:N",
      "residue_pair": "aa:aa"
    },
    {
      "index": 17,
      "atom1_serNum": 296,
      "atom2_serNum": 1354,
      "donAcc_type": "standard",
      "distance": 3.044,
      "atom1_id": "///A/26/NE",
      "atom2_id": "///B/9/O5'",
      "atom_pair": "N:O",
      "residue_pair": "aa:nt"
    },
    {
      "index": 18,
      "atom1_serNum": 299,
      "atom2_serNum": 1352,
      "donAcc_type": "standard",
      "distance": 2.832,
      "atom1_id": "///A/26/NH2",
      "atom2_id": "///B/9/OP1",
      "atom_pair": "N:O",
      "residue_pair": "aa:nt"
    },
    {
      "index": 19,
      "atom1_serNum": 316,
      "atom2_serNum": 341,
      "donAcc_type": "standard",
      "distance": 2.723,
      "atom1_id": "///A/27/O",
      "atom2_id": "///A/29/N",
      "atom_pair": "O:N",
      "residue_pair": "aa:aa"
    },
    {
      "index": 20,
      "atom1_serNum": 316,
      "atom2_serNum": 348,
      "donAcc_type": "standard",
      "distance": 3.006,
      "atom1_id": "///A/27/O",
      "atom2_id": "///A/29/ND2",
      "atom_pair": "O:N",
      "residue_pair": "aa:aa"
    },
    {
      "index": 21,
      "atom1_serNum": 344,
      "atom2_serNum": 395,
      "donAcc_type": "standard",
      "distance": 3.515,
      "atom1_id": "///A/29/O",
      "atom2_id": "///A/32/NE2",
      "atom_pair": "O:N",
      "residue_pair": "aa:aa"
    },
    {
      "index": 22,
      "atom1_serNum": 358,
      "atom2_serNum": 387,
      "donAcc_type": "standard",
      "distance": 3.099,
      "atom1_id": "///A/30/O",
      "atom2_id": "///A/32/N",
      "atom_pair": "O:N",
      "residue_pair": "aa:aa"
    },
    {
      "index": 23,
      "atom1_serNum": 358,
      "atom2_serNum": 395,
      "donAcc_type": "standard",
      "distance": 2.896,
      "atom1_id": "///A/30/O",
      "atom2_id": "///A/32/NE2",
      "atom_pair": "O:N",
      "residue_pair": "aa:aa"
    },
    {
      "index": 24,
      "atom1_serNum": 380,
      "atom2_serNum": 404,
      "donAcc_type": "standard",
      "distance": 3.030,
      "atom1_id": "///A/31/O",
      "atom2_id": "///A/33/N",
      "atom_pair": "O:N",
      "residue_pair": "aa:aa"
    },
    {
      "index": 25,
      "atom1_serNum": 437,
      "atom2_serNum": 440,
      "donAcc_type": "acceptable",
      "distance": 3.067,
      "atom1_id": "///A/35/O",
      "atom2_id": "///A/35/ND1",
      "atom_pair": "O:N",
      "residue_pair": "aa:aa"
    },
    {
      "index": 26,
      "atom1_serNum": 454,
      "atom2_serNum": 495,
      "donAcc_type": "standard",
      "distance": 2.904,
      "atom1_id": "///A/36/O",
      "atom2_id": "///A/39/N",
      "atom_pair": "O:N",
      "residue_pair": "aa:aa"
    },
    {
      "index": 27,
      "atom1_serNum": 454,
      "atom2_serNum": 507,
      "donAcc_type": "standard",
      "distance": 3.214,
      "atom1_id": "///A/36/O",
      "atom2_id": "///A/40/N",
      "atom_pair": "O:N",
      "residue_pair": "aa:aa"
    },
    {
      "index": 28,
      "atom1_serNum": 603,
      "atom2_serNum": 1245,
      "donAcc_type": "standard",
      "distance": 2.829,
      "atom1_id": "///A/45/NH1",
      "atom2_id": "///B/5/O4",
      "atom_pair": "N:O",
      "residue_pair": "aa:nt"
    },
    {
      "index": 29,
      "atom1_serNum": 604,
      "atom2_serNum": 1245,
      "donAcc_type": "standard",
      "distance": 2.973,
      "atom1_id": "///A/45/NH2",
      "atom2_id": "///B/5/O4",
      "atom_pair": "N:O",
      "residue_pair": "aa:nt"
    },
    {
      "index": 30,
      "atom1_serNum": 621,
      "atom2_serNum": 671,
      "donAcc_type": "standard",
      "distance": 2.908,
      "atom1_id": "///A/46/O",
      "atom2_id": "///A/49/N",
      "atom_pair": "O:N",
      "residue_pair": "aa:aa"
    },
    {
      "index": 31,
      "atom1_serNum": 652,
      "atom2_serNum": 692,
      "donAcc_type": "standard",
      "distance": 2.970,
      "atom1_id": "///A/48/O",
      "atom2_id": "///A/50/N",
      "atom_pair": "O:N",
      "residue_pair": "aa:aa"
    },
    {
      "index": 32,
      "atom1_serNum": 657,
      "atom2_serNum": 1137,
      "donAcc_type": "standard",
      "distance": 2.879,
      "atom1_id": "///A/48/NZ",
      "atom2_id": "///B/2/OP2",
      "atom_pair": "N:O",
      "residue_pair": "aa:nt"
    },
    {
      "index": 33,
      "atom1_serNum": 657,
      "atom2_serNum": 1138,
      "donAcc_type": "standard",
      "distance": 2.885,
      "atom1_id": "///A/48/NZ",
      "atom2_id": "///B/2/O5'",
      "atom_pair": "N:O",
      "residue_pair": "aa:nt"
    },
    {
      "index": 34,
      "atom1_serNum": 714,
      "atom2_serNum": 1152,
      "donAcc_type": "standard",
      "distance": 2.798,
      "atom1_id": "///A/51/N",
      "atom2_id": "///B/2/O4",
      "atom_pair": "N:O",
      "residue_pair": "aa:nt"
    },
    {
      "index": 35,
      "atom1_serNum": 717,
      "atom2_serNum": 719,
      "donAcc_type": "acceptable",
      "distance": 3.076,
      "atom1_id": "///A/51/O",
      "atom2_id": "///A/51/OG1",
      "atom_pair": "O:O",
      "residue_pair": "aa:aa"
    },
    {
      "index": 36,
      "atom1_serNum": 728,
      "atom2_serNum": 1152,
      "donAcc_type": "standard",
      "distance": 3.036,
      "atom1_id": "///A/52/N",
      "atom2_id": "///B/2/O4",
      "atom_pair": "N:O",
      "residue_pair": "aa:nt"
    },
    {
      "index": 37,
      "atom1_serNum": 731,
      "atom2_serNum": 1031,
      "donAcc_type": "standard",
      "distance": 2.832,
      "atom1_id": "///A/52/O",
      "atom2_id": "///A/72/N",
      "atom_pair": "O:N",
      "residue_pair": "aa:aa"
    },
    {
      "index": 38,
      "atom1_serNum": 746,
      "atom2_serNum": 1182,
      "donAcc_type": "standard",
      "distance": 3.944,
      "atom1_id": "///A/53/O",
      "atom2_id": "///B/3/N6",
      "atom_pair": "O:N",
      "residue_pair": "aa:nt"
    },
    {
      "index": 39,
      "atom1_serNum": 759,
      "atom2_serNum": 1034,
      "donAcc_type": "standard",
      "distance": 3.465,
      "atom1_id": "///A/54/N",
      "atom2_id": "///A/72/O",
      "atom_pair": "N:O",
      "residue_pair": "aa:aa"
    },
    {
      "index": 40,
      "atom1_serNum": 762,
      "atom2_serNum": 827,
      "donAcc_type": "standard",
      "distance": 3.093,
      "atom1_id": "///A/54/O",
      "atom2_id": "///A/58/N",
      "atom_pair": "O:N",
      "residue_pair": "aa:aa"
    },
    {
      "index": 41,
      "atom1_serNum": 769,
      "atom2_serNum": 1183,
      "donAcc_type": "standard",
      "distance": 3.171,
      "atom1_id": "///A/55/N",
      "atom2_id": "///B/3/N1",
      "atom_pair": "N:N",
      "residue_pair": "aa:nt"
    },
    {
      "index": 42,
      "atom1_serNum": 772,
      "atom2_serNum": 838,
      "donAcc_type": "standard",
      "distance": 2.962,
      "atom1_id": "///A/55/O",
      "atom2_id": "///A/59/N",
      "atom_pair": "O:N",
      "residue_pair": "aa:aa"
    },
    {
      "index": 43,
      "atom1_serNum": 796,
      "atom2_serNum": 848,
      "donAcc_type": "standard",
      "distance": 3.190,
      "atom1_id": "///A/56/O",
      "atom2_id": "///A/60/N",
      "atom_pair": "O:N",
      "residue_pair": "aa:aa"
    },
    {
      "index": 44,
      "atom1_serNum": 810,
      "atom2_serNum": 858,
      "donAcc_type": "standard",
      "distance": 3.018,
      "atom1_id": "///A/57/O",
      "atom2_id": "///A/61/N",
      "atom_pair": "O:N",
      "residue_pair": "aa:aa"
    },
    {
      "index": 45,
      "atom1_serNum": 906,
      "atom2_serNum": 931,
      "donAcc_type": "standard",
      "distance": 2.942,
      "atom1_id": "///A/65/O",
      "atom2_id": "///A/67/N",
      "atom_pair": "O:N",
      "residue_pair": "aa:aa"
    },
    {
      "index": 46,
      "atom1_serNum": 906,
      "atom2_serNum": 953,
      "donAcc_type": "standard",
      "distance": 2.854,
      "atom1_id": "///A/65/O",
      "atom2_id": "///A/68/N",
      "atom_pair": "O:N",
      "residue_pair": "aa:aa"
    },
    {
      "index": 47,
      "atom1_serNum": 939,
      "atom2_serNum": 1289,
      "donAcc_type": "standard",
      "distance": 2.835,
      "atom1_id": "///A/67/NZ",
      "atom2_id": "///B/7/OP1",
      "atom_pair": "N:O",
      "residue_pair": "aa:nt"
    },
    {
      "index": 48,
      "atom1_serNum": 962,
      "atom2_serNum": 1259,
      "donAcc_type": "standard",
      "distance": 2.826,
      "atom1_id": "///A/68/NH1",
      "atom2_id": "///B/6/OP1",
      "atom_pair": "N:O",
      "residue_pair": "aa:nt"
    },
    {
      "index": 49,
      "atom1_serNum": 990,
      "atom2_serNum": 1150,
      "donAcc_type": "standard",
      "distance": 2.940,
      "atom1_id": "///A/70/O",
      "atom2_id": "///B/2/N3",
      "atom_pair": "O:N",
      "residue_pair": "aa:nt"
    },
    {
      "index": 50,
      "atom1_serNum": 996,
      "atom2_serNum": 1143,
      "donAcc_type": "standard",
      "distance": 3.029,
      "atom1_id": "///A/70/NH1",
      "atom2_id": "///B/2/O3'",
      "atom_pair": "N:O",
      "residue_pair": "aa:nt"
    },
    {
      "index": 51,
      "atom1_serNum": 996,
      "atom2_serNum": 1166,
      "donAcc_type": "standard",
      "distance": 2.942,
      "atom1_id": "///A/70/NH1",
      "atom2_id": "///B/3/OP1",
      "atom_pair": "N:O",
      "residue_pair": "aa:nt"
    },
    {
      "index": 52,
      "atom1_serNum": 1114,
      "atom2_serNum": 1167,
      "donAcc_type": "acceptable",
      "distance": 2.847,
      "atom1_id": "///B/1/O2'",
      "atom2_id": "///B/3/OP2",
      "atom_pair": "O:O",
      "residue_pair": "nt:nt"
    },
    {
      "index": 53,
      "atom1_serNum": 1145,
      "atom2_serNum": 1171,
      "donAcc_type": "acceptable",
      "distance": 3.421,
      "atom1_id": "///B/2/O2'",
      "atom2_id": "///B/3/O4'",
      "atom_pair": "O:O",
      "residue_pair": "nt:nt"
    },
    {
      "index": 54,
      "atom1_serNum": 1238,
      "atom2_serNum": 1261,
      "donAcc_type": "acceptable",
      "distance": 3.040,
      "atom1_id": "///B/5/O2'",
      "atom2_id": "///B/6/O5'",
      "atom_pair": "O:O",
      "residue_pair": "nt:nt"
    },
    {
      "index": 55,
      "atom1_serNum": 1238,
      "atom2_serNum": 1264,
      "donAcc_type": "acceptable",
      "distance": 3.180,
      "atom1_id": "///B/5/O2'",
      "atom2_id": "///B/6/O4'",
      "atom_pair": "O:O",
      "residue_pair": "nt:nt"
    },
    {
      "index": 56,
      "atom1_serNum": 1268,
      "atom2_serNum": 1296,
      "donAcc_type": "acceptable",
      "distance": 2.981,
      "atom1_id": "///B/6/O2'",
      "atom2_id": "///B/7/O3'",
      "atom_pair": "O:O",
      "residue_pair": "nt:nt"
    }
  ],
  "refCoords": {
    "purine": [
      "   12 ATOMS,    12 BONDS",
      "    1 N      -2.2500   5.0000   0.4000",
      "    2 N      -2.2500  -0.5000   0.4000",
      "    3 N      -2.2500  -0.5000  -0.4000",
      "    4 N      -2.2500   5.0000  -0.4000",
      "    5 C       1.2500   5.0000   0.4000",
      "    6 C       1.2500  -0.5000   0.4000",
      "    7 C       1.2500  -0.5000  -0.4000",
      "    8 C       1.2500   5.0000  -0.4000",
      "    9 C      -2.2500   5.0000   0.4000",
      "   10 C      -2.2500  -0.5000   0.4000",
      "   11 C      -2.2500  -0.5000  -0.4000",
      "   12 C      -2.2500   5.0000  -0.4000",
      "    1     1     2",
      "    2     2     3",
      "    3     3     4",
      "    4     4     1",
      "    5     5     6",
      "    6     6     7",
      "    7     7     8",
      "    8     5     8",
      "    9     9     5",
      "   10    10     6",
      "   11    11     7",
      "   12    12     8"
    ],
    "pyrimidine": [
      "   12 ATOMS,    12 BONDS",
      "    1 N      -2.2500   5.0000   0.4000",
      "    2 N      -2.2500   1.0000   0.4000",
      "    3 N      -2.2500   1.0000  -0.4000",
      "    4 N      -2.2500   5.0000  -0.4000",
      "    5 C       1.2500   5.0000   0.4000",
      "    6 C       1.2500   1.0000   0.4000",
      "    7 C       1.2500   1.0000  -0.4000",
      "    8 C       1.2500   5.0000  -0.4000",
      "    9 C      -2.2500   5.0000   0.4000",
      "   10 C      -2.2500   1.0000   0.4000",
      "   11 C      -2.2500   1.0000  -0.4000",
      "   12 C      -2.2500   5.0000  -0.4000",
      "    1     1     2",
      "    2     2     3",
      "    3     3     4",
      "    4     4     1",
      "    5     5     6",
      "    6     6     7",
      "    7     7     8",
      "    8     5     8",
      "    9     9     5",
      "   10    10     6",
      "   11    11     7",
      "   12    12     8"
    ],
    "wc_pair": [
      "   12 ATOMS,    12 BONDS",
      "    1 N      -2.2500   5.0000   0.4000",
      "    2 N      -2.2500  -5.0000   0.4000",
      "    3 N      -2.2500  -5.0000  -0.4000",
      "    4 N      -2.2500   5.0000  -0.4000",
      "    5 C       2.2500   5.0000   0.4000",
      "    6 C       2.2500  -5.0000   0.4000",
      "    7 C       2.2500  -5.0000  -0.4000",
      "    8 C       2.2500   5.0000  -0.4000",
      "    9 C      -2.2500   5.0000   0.4000",
      "   10 C      -2.2500  -5.0000   0.4000",
      "   11 C      -2.2500  -5.0000  -0.4000",
      "   12 C      -2.2500   5.0000  -0.4000",
      "    1     1     2",
      "    2     2     3",
      "    3     3     4",
      "    4     4     1",
      "    5     5     6",
      "    6     6     7",
      "    7     7     8",
      "    8     5     8",
      "    9     9     5",
      "   10    10     6",
      "   11    11     7",
      "   12    12     8"
    ]
  },
  "metadata": {
    "license": "http://innovation.columbia.edu/technologies/CU20391",
    "url": "http://x3dna.org/",
    "url_alt": "http://home.x3dna.org/",
    "forum": "http://forum.x3dna.org/",
    "citation": "Lu et al. (2015). 'DSSR: an integrated software tool for dissecting the spatial structure of RNA.' Nucleic Acids Res., 43(21):e142 [doi:10.1093/nar/gkv716].",
    "str_id": "9y10",
    "num_aaChains": 1,
    "aaChains": "A=70",
    "num_naChains": 1,
    "naChains": "B=9",
    "num_atoms": 1382,
    "num_waters": 0,
    "num_metals": 2,
    "metals_desc": "Zn=2",
    "num_notes": 52,
    "notes": [
      {
        "Aminors": "A-minor interactions (including types I and II)"
      },
      {
        "Cstem_index": "stem index of the 'Canonical' helix in k-turn"
      },
      {
        "Cstem_pair": "Cstem bp delineating the k-turn internal loop"
      },
      {
        "Dp": "perpendicular distance of the 3' P atom to the glycosidic bond"
      },
      {
        "GA_pair": "sheared G-A pair in k-turn"
      },
      {
        "HtypePknot": "H-type pseudoknot"
      },
      {
        "Kturn": "kink-turn (k-turn)"
      },
      {
        "LW": "Leontis-Westhof"
      },
      {
        "NCstem_index": "stem index of the 'Non-Canonical' helix in k-turn"
      },
      {
        "NCstem_pair": "NCstem bp delineating the k-turn internal loop"
      },
      {
        "Uturn": "U-turn of the UNR- or GNRA-type"
      },
      {
        "aa": "amino acid"
      },
      {
        "atom_pair": "symbols of the two atoms involved in an H-bond"
      },
      {
        "auxfiles": "auxiliary files"
      },
      {
        "glyco_bond": "conformation of base related to sugar (syn or anti)"
      },
      {
        "bb_type": "backbone conformation, BI or BII"
      },
      {
        "bending_angle": "angle between two helical axes"
      },
      {
        "bp": "base pair"
      },
      {
        "bseq": "base sequence in one-letter code"
      },
      {
        "bulge": "bulge loop"
      },
      {
        "coaxStacks": "coaxial stacking of stems within a helix"
      },
      {
        "dbn": "dot bracket notation"
      },
      {
        "desc": "description"
      },
      {
        "donAcc_type": "donor/acceptor type of the atom pair in an H-bond"
      },
      {
        "epsilon_zeta": "difference between epsilon and zeta torsion angles"
      },
      {
        "hairpin": "hairpin loop"
      },
      {
        "hbond": "hydrogen bond (H-bond)"
      },
      {
        "helix": "defined by base-stacking interactions, regardless of bp type and backbone connectivity"
      },
      {
        "id": "identifier"
      },
      {
        "iloop": "internal loop"
      },
      {
        "index": "serial number"
      },
      {
        "isoCanonPairs": "isolated canonical pairs"
      },
      {
        "junction": "(multi-branched) junction loop"
      },
      {
        "kissingLoop": "kissing loop"
      },
      {
        "multiplet": "3+ bases in a coplanar geometry"
      },
      {
        "na": "nucleic acid"
      },
      {
        "nonPair": "two nts not forming a pair, but with H-bonding/stacking interactions"
      },
      {
        "nonStack": "nucleotide not involved in stacking interactions"
      },
      {
        "nt": "nucleotide"
      },
      {
        "num": "number"
      },
      {
        "oArea": "overlap areas between two bases, including exocyclic atoms"
      },
      {
        "oArea_ring": "overlap areas between two bases, including only ring atoms"
      },
      {
        "phosContacts": "H-bonding and atom-capping interactions involving a phosphate"
      },
      {
        "residue_pair": "types of the two residues involved in an H-bond"
      },
      {
        "rmsd": "root-mean-squares deviation"
      },
      {
        "serNum": "serial number"
      },
      {
        "ssSegments": "single-stranded segments not involved in loops"
      },
      {
        "ssZp": "Z-coordinate of the 3' phosphorus atom with reference to the 5' base plane"
      },
      {
        "sstr": "secondary structure in dbn"
      },
      {
        "stem": "helix consisting of only canonical pairs, with a continuous backbone"
      },
      {
        "str_id": "structure identifier, derived from inpfile with extension removed"
      },
      {
        "vert_dist": "vertical distance from an atom to a base plane"
      }
    ],
    "num_auxfiles": 11,
    "auxfiles": [
      {
        "index": 1,
        "name": "dssr-2ndstrs.bpseq",
        "desc": "secondary structure in bpseq format"
      },
      {
        "index": 2,
        "name": "dssr-2ndstrs.ct",
        "desc": "secondary structure in connectivity table format"
      },
      {
        "index": 3,
        "name": "dssr-2ndstrs.dbn",
        "desc": "secondary structure in dot-bracket notation"
      },
      {
        "index": 4,
        "name": "dssr-torsions.txt",
        "desc": "backbone torsion angles and suite names"
      },
      {
        "index": 5,
        "name": "dssr-splays.pdb",
        "desc": "an ensemble of splayed-apart units"
      },
      {
        "index": 6,
        "name": "dssr-stacks.pdb",
        "desc": "an ensemble of base stacks"
      },
      {
        "index": 7,
        "name": "dssr-atom2bases.pdb",
        "desc": "an ensemble of atom-base stacking interactions"
      },
      {
        "index": 8,
        "name": "dssr-rotmat.txt",
        "desc": "position vector and rotation matrix"
      },
      {
        "index": 9,
        "name": "dssr-viewV.pdb",
        "desc": "vertical view of the principal moment of inertia"
      },
      {
        "index": 10,
        "name": "dssr-viewH.pdb",
        "desc": "horizontal view of the principal moment of inertia"
      },
      {
        "index": 11,
        "name": "dssr-viewT.pdb",
        "desc": "top view of the principal moment of inertia"
      }
    ],
    "time_used": "999"
  }
}
