{
  "num_stacks": 1,
  "stacks": [
    {
      "index": 1,
      "num_nts": 8,
      "nts_short": "GuGuACAC",
      "nts_long": "///A/1,///A/2,///A/3,///A/4,///A/5,///A/6,///A/7,///A/8"
    }
  ],
  "num_ssSegments": 1,
  "ssSegments": [
    {
      "index": 1,
      "num_nts": 8,
      "nts_short": "GuGuACAC",
      "nts_long": "///A/1,///A/2,///A/3,///A/4,///A/5,///A/6,///A/7,///A/8"
    }
  ],
  "dbn": {
    "all_chains": {
      "num_nts": 8,
      "num_chars": 8,
      "bseq": "GuGuACAC",
      "bseqUP": "GUGUACAC",
      "sstr": "........",
      "form": "AAAAAAA-"
    },
    "chain_A": {
      "num_nts": 8,
      "num_chars": 8,
      "bseq": "GuGuACAC",
      "bseqUP": "GUGUACAC",
      "sstr": "........",
      "form": "AAAAAAA-"
    }
  },
  "chains": {
    "chain_A": {
      "num_nts": 8,
      "bseq": "GuGuACAC",
      "sstr": "........",
      "form": "AAAAAAA-",
      "helical_rise": 3.479,
      "helical_rise_std": 0.281,
      "helical_axis": [
        -0.658,
        0.472,
        -0.587
      ],
      "point1": [
        41.465,
        27.468,
        6.113
      ],
      "point2": [
        25.046,
        39.245,
        -8.553
      ],
      "num_chars": 22,
      "suite": "G1au1aG1au1cA1aC1aA1bC"
    }
  },
  "num_nts": 8,
  "nts": [
    {
      "index": 1,
      "index_chain": 1,
      "chain_name": "A",
      "nt_resnum": 1,
      "nt_name": "DG",
      "nt_code": "G",
      "nt_id": "///A/1",
      "linked_nts": [
        null,
        "///A/2"
      ],
      "nt_type": "DNA",
      "dbn": ".",
      "summary": "anti,~C3'-endo,BI,non-pair-contact,ss-non-loop",
      "alpha": null,
      "beta": null,
      "gamma": 53.015,
      "delta": 83.352,
      "epsilon": -147.807,
      "zeta": -69.708,
      "epsilon_zeta": -78.099,
      "bb_type": "BI",
      "chi": -162.252,
      "glyco_bond": "anti",
      "C5prime_xyz": [
        -1.188,
        8.659,
        0.598
      ],
      "P_xyz": [
        null,
        null,
        null
      ],
      "form": "A",
      "ssZp": 4.508,
      "Dp": 4.726,
      "splay_angle": 22.833,
      "splay_distance": 3.612,
      "splay_ratio": 0.199,
      "d22": null,
      "d64": null,
      "eta": null,
      "theta": null,
      "eta_prime": null,
      "theta_prime": null,
      "eta_base": null,
      "theta_base": null,
      "v0": 10.346,
      "v1": -33.226,
      "v2": 42.276,
      "v3": -37.172,
      "v4": 17.227,
      "amplitude": 42.422,
      "phase_angle": 4.757,
      "puckering": "C3'-endo",
      "sugar_class": "~C3'-endo",
      "bin": "inc",
      "cluster": "__",
      "suiteness": 0.000,
      "filter_rmsd": 0.011,
      "frame": {
        "rmsd": 0.011,
        "origin": [
          41.575,
          27.246,
          4.124
        ],
        "x_axis": [
          -0.872,
          0.275,
          0.406
        ],
        "y_axis": [
          0.389,
          0.892,
          0.231
        ],
        "z_axis": [
          -0.298,
          0.359,
          -0.884
        ],
        "quaternion": [
          -0.184,
          0.174,
          0.955,
          0.155
        ]
      }
    },
    {
      "index": 2,
      "index_chain": 2,
      "chain_name": "A",
      "nt_resnum": 2,
      "nt_name": "UMS",
      "nt_code": "u",
      "is_modified": true,
      "nt_id": "///A/2",
      "linked_nts": [
        "///A/1",
        "///A/3"
      ],
      "nt_type": "RNA",
      "dbn": ".",
      "summary": "modified,anti,~C3'-endo,BI,non-pair-contact,ss-non-loop",
      "alpha": -69.742,
      "beta": 169.161,
      "gamma": 58.717,
      "delta": 78.264,
      "epsilon": -151.690,
      "zeta": -58.233,
      "epsilon_zeta": -93.457,
      "bb_type": "BI",
      "chi": -158.893,
      "glyco_bond": "anti",
      "C5prime_xyz": [
        -1.437,
        8.763,
        0.447
      ],
      "P_xyz": [
        1.159,
        9.203,
        0.304
      ],
      "form": "A",
      "ssZp": 4.390,
      "Dp": 4.672,
      "splay_angle": 19.705,
      "splay_distance": 3.443,
      "splay_ratio": 0.180,
      "d22": null,
      "d64": null,
      "eta": 168.118,
      "theta": -133.167,
      "eta_prime": -176.451,
      "theta_prime": -136.470,
      "eta_base": -132.960,
      "theta_base": -114.299,
      "v0": 2.393,
      "v1": -27.723,
      "v2": 40.764,
      "v3": -41.021,
      "v4": 24.401,
      "amplitude": 42.347,
      "phase_angle": 15.718,
      "puckering": "C3'-endo",
      "sugar_class": "~C3'-endo",
      "bin": "33p",
      "cluster": "1a",
      "suiteness": 0.924,
      "filter_rmsd": 0.101,
      "frame": {
        "rmsd": 0.017,
        "origin": [
          38.875,
          27.856,
          1.803
        ],
        "x_axis": [
          -0.438,
          0.673,
          0.596
        ],
        "y_axis": [
          0.757,
          0.634,
          -0.159
        ],
        "z_axis": [
          -0.485,
          0.381,
          -0.787
        ],
        "quaternion": [
          -0.319,
          0.423,
          0.845,
          0.066
        ]
      }
    },
    {
      "index": 3,
      "index_chain": 3,
      "chain_name": "A",
      "nt_resnum": 3,
      "nt_name": "DG",
      "nt_code": "G",
      "nt_id": "///A/3",
      "linked_nts": [
        "///A/2",
        "///A/4"
      ],
      "nt_type": "DNA",
      "dbn": ".",
      "summary": "anti,~C3'-endo,BI,non-pair-contact,ss-non-loop",
      "alpha": -83.773,
      "beta": 160.474,
      "gamma": 76.973,
      "delta": 73.253,
      "epsilon": -167.074,
      "zeta": -72.807,
      "epsilon_zeta": -94.268,
      "bb_type": "BI",
      "chi": -168.184,
      "glyco_bond": "anti",
      "C5prime_xyz": [
        -2.149,
        8.949,
        0.763
      ],
      "P_xyz": [
        0.191,
        10.097,
        0.166
      ],
      "form": "A",
      "ssZp": 4.483,
      "Dp": 4.528,
      "splay_angle": 23.375,
      "splay_distance": 3.696,
      "splay_ratio": 0.205,
      "d22": null,
      "d64": null,
      "eta": 160.998,
      "theta": -163.352,
      "eta_prime": -177.230,
      "theta_prime": -163.992,
      "eta_base": -133.361,
      "theta_base": -136.025,
      "v0": -7.827,
      "v1": -23.294,
      "v2": 42.995,
      "v3": -48.584,
      "v4": 36.019,
      "amplitude": 48.510,
      "phase_angle": 27.586,
      "puckering": "C3'-endo",
      "sugar_class": "~C3'-endo",
      "bin": "33p",
      "cluster": "1a",
      "suiteness": 0.164,
      "filter_rmsd": 0.008,
      "frame": {
        "rmsd": 0.008,
        "origin": [
          35.718,
          28.961,
          0.989
        ],
        "x_axis": [
          0.040,
          0.833,
          0.551
        ],
        "y_axis": [
          0.782,
          0.317,
          -0.537
        ],
        "z_axis": [
          -0.622,
          0.452,
          -0.639
        ],
        "quaternion": [
          -0.424,
          0.584,
          0.692,
          -0.030
        ]
      }
    },
    {
      "index": 4,
      "index_chain": 4,
      "chain_name": "A",
      "nt_resnum": 4,
      "nt_name": "TTI",
      "nt_code": "u",
      "is_modified": true,
      "nt_id": "///A/4",
      "linked_nts": [
        "///A/3",
        "///A/5"
      ],
      "nt_type": "DNA",
      "dbn": ".",
      "summary": "modified,anti,~C3'-endo,BI,non-pair-contact,ss-non-loop",
      "alpha": -66.630,
      "beta": 177.437,
      "gamma": 56.014,
      "delta": 82.317,
      "epsilon": -160.841,
      "zeta": -76.694,
      "epsilon_zeta": -84.147,
      "bb_type": "BI",
      "chi": -158.801,
      "glyco_bond": "anti",
      "C5prime_xyz": [
        -1.428,
        8.788,
        0.450
      ],
      "P_xyz": [
        1.180,
        9.192,
        0.818
      ],
      "form": "A",
      "ssZp": 4.244,
      "Dp": 4.426,
      "splay_angle": 19.167,
      "splay_distance": 3.277,
      "splay_ratio": 0.172,
      "d22": null,
      "d64": null,
      "eta": 176.869,
      "theta": -128.350,
      "eta_prime": -172.429,
      "theta_prime": -138.305,
      "eta_base": -134.673,
      "theta_base": -115.125,
      "v0": -0.073,
      "v1": -23.492,
      "v2": 36.675,
      "v3": -37.898,
      "v4": 23.887,
      "amplitude": 38.736,
      "phase_angle": 18.773,
      "puckering": "C3'-endo",
      "sugar_class": "~C3'-endo",
      "bin": "33p",
      "cluster": "1a",
      "suiteness": 0.669,
      "filter_rmsd": 0.099,
      "frame": {
        "rmsd": 0.009,
        "origin": [
          32.426,
          30.399,
          0.119
        ],
        "x_axis": [
          0.469,
          0.868,
          0.166
        ],
        "y_axis": [
          0.600,
          -0.176,
          -0.780
        ],
        "z_axis": [
          -0.648,
          0.465,
          -0.603
        ],
        "quaternion": [
          -0.415,
          0.750,
          0.490,
          -0.161
        ]
      }
    },
    {
      "index": 5,
      "index_chain": 5,
      "chain_name": "A",
      "nt_resnum": 5,
      "nt_name": "DA",
      "nt_code": "A",
      "nt_id": "///A/5",
      "linked_nts": [
        "///A/4",
        "///A/6"
      ],
      "nt_type": "DNA",
      "dbn": ".",
      "summary": "anti,~C3'-endo,BI,non-pair-contact,ss-non-loop",
      "alpha": 148.331,
      "beta": -163.755,
      "gamma": 176.470,
      "delta": 90.986,
      "epsilon": -143.390,
      "zeta": -67.247,
      "epsilon_zeta": -76.143,
      "bb_type": "BI",
      "chi": -170.050,
      "glyco_bond": "anti",
      "C5prime_xyz": [
        -1.129,
        8.338,
        1.297
      ],
      "P_xyz": [
        0.552,
        9.925,
        0.050
      ],
      "form": "A",
      "ssZp": 4.431,
      "Dp": 4.539,
      "splay_angle": 22.165,
      "splay_distance": 3.533,
      "splay_ratio": 0.194,
      "d22": null,
      "d64": null,
      "eta": 164.969,
      "theta": -158.242,
      "eta_prime": -179.817,
      "theta_prime": -154.710,
      "eta_base": -136.099,
      "theta_base": -118.994,
      "v0": 11.556,
      "v1": -30.500,
      "v2": 36.935,
      "v3": -31.786,
      "v4": 12.886,
      "amplitude": 36.944,
      "phase_angle": 1.319,
      "puckering": "C3'-endo",
      "sugar_class": "~C3'-endo",
      "bin": "33t",
      "cluster": "1c",
      "suiteness": 0.814,
      "filter_rmsd": 0.038,
      "frame": {
        "rmsd": 0.007,
        "origin": [
          30.267,
          32.841,
          -0.213
        ],
        "x_axis": [
          0.739,
          0.638,
          -0.215
        ],
        "y_axis": [
          0.191,
          -0.504,
          -0.842
        ],
        "z_axis": [
          -0.646,
          0.581,
          -0.494
        ],
        "quaternion": [
          -0.430,
          0.827,
          0.251,
          -0.260
        ]
      }
    },
    {
      "index": 6,
      "index_chain": 6,
      "chain_name": "A",
      "nt_resnum": 6,
      "nt_name": "DC",
      "nt_code": "C",
      "nt_id": "///A/6",
      "linked_nts": [
        "///A/5",
        "///A/7"
      ],
      "nt_type": "DNA",
      "dbn": ".",
      "summary": "anti,~C3'-endo,BI,non-pair-contact,ss-non-loop",
      "alpha": -73.141,
      "beta": 172.780,
      "gamma": 53.244,
      "delta": 78.643,
      "epsilon": -158.559,
      "zeta": -77.093,
      "epsilon_zeta": -81.466,
      "bb_type": "BI",
      "chi": -158.791,
      "glyco_bond": "anti",
      "C5prime_xyz": [
        -1.559,
        8.813,
        0.480
      ],
      "P_xyz": [
        1.027,
        9.275,
        0.646
      ],
      "form": "A",
      "ssZp": 4.352,
      "Dp": 4.585,
      "splay_angle": 21.305,
      "splay_distance": 3.340,
      "splay_ratio": 0.186,
      "d22": null,
      "d64": null,
      "eta": 158.669,
      "theta": -154.542,
      "eta_prime": 178.679,
      "theta_prime": -151.238,
      "eta_base": -129.349,
      "theta_base": -132.128,
      "v0": 3.775,
      "v1": -30.768,
      "v2": 44.050,
      "v3": -43.858,
      "v4": 25.124,
      "amplitude": 45.449,
      "phase_angle": 14.253,
      "puckering": "C3'-endo",
      "sugar_class": "~C3'-endo",
      "bin": "33p",
      "cluster": "1a",
      "suiteness": 0.721,
      "filter_rmsd": 0.062,
      "frame": {
        "rmsd": 0.010,
        "origin": [
          29.031,
          36.030,
          -1.099
        ],
        "x_axis": [
          0.712,
          0.175,
          -0.680
        ],
        "y_axis": [
          -0.357,
          -0.744,
          -0.565
        ],
        "z_axis": [
          -0.604,
          0.645,
          -0.467
        ],
        "quaternion": [
          -0.354,
          0.855,
          -0.053,
          -0.376
        ]
      }
    },
    {
      "index": 7,
      "index_chain": 7,
      "chain_name": "A",
      "nt_resnum": 7,
      "nt_name": "DA",
      "nt_code": "A",
      "nt_id": "///A/7",
      "linked_nts": [
        "///A/6",
        "///A/8"
      ],
      "nt_type": "DNA",
      "dbn": ".",
      "summary": "anti,~C3'-endo,BI,non-pair-contact,ss-non-loop",
      "alpha": -62.473,
      "beta": -178.863,
      "gamma": 49.729,
      "delta": 86.421,
      "epsilon": -155.425,
      "zeta": -67.412,
      "epsilon_zeta": -88.013,
      "bb_type": "BI",
      "chi": -149.353,
      "glyco_bond": "anti",
      "C5prime_xyz": [
        -1.358,
        8.766,
        -0.086
      ],
      "P_xyz": [
        1.218,
        9.054,
        0.442
      ],
      "form": "A",
      "ssZp": 3.838,
      "Dp": 4.311,
      "splay_angle": 18.529,
      "splay_distance": 3.044,
      "splay_ratio": 0.161,
      "d22": null,
      "d64": null,
      "eta": 176.824,
      "theta": -140.636,
      "eta_prime": -173.620,
      "theta_prime": -135.429,
      "eta_base": -147.414,
      "theta_base": -118.326,
      "v0": 2.179,
      "v1": -23.544,
      "v2": 35.578,
      "v3": -35.088,
      "v4": 20.491,
      "amplitude": 36.876,
      "phase_angle": 15.252,
      "puckering": "C3'-endo",
      "sugar_class": "~C3'-endo",
      "bin": "33p",
      "cluster": "1a",
      "suiteness": 0.841,
      "filter_rmsd": 0.038,
      "frame": {
        "rmsd": 0.012,
        "origin": [
          27.868,
          39.035,
          -1.980
        ],
        "x_axis": [
          0.565,
          -0.371,
          -0.737
        ],
        "y_axis": [
          -0.726,
          -0.648,
          -0.230
        ],
        "z_axis": [
          -0.392,
          0.665,
          -0.636
        ],
        "quaternion": [
          -0.265,
          0.844,
          -0.325,
          -0.334
        ]
      }
    },
    {
      "index": 8,
      "index_chain": 8,
      "chain_name": "A",
      "nt_resnum": 8,
      "nt_name": "DC",
      "nt_code": "C",
      "nt_id": "///A/8",
      "linked_nts": [
        "///A/7",
        null
      ],
      "nt_type": "DNA",
      "dbn": ".",
      "summary": "anti,~C2'-endo,non-pair-contact,ss-non-loop",
      "alpha": -70.974,
      "beta": 174.704,
      "gamma": 65.914,
      "delta": 135.723,
      "epsilon": null,
      "zeta": null,
      "epsilon_zeta": null,
      "bb_type": "--",
      "chi": -121.417,
      "glyco_bond": "anti",
      "C5prime_xyz": [
        -2.110,
        8.662,
        -1.131
      ],
      "P_xyz": [
        0.352,
        9.418,
        -1.247
      ],
      "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": -22.301,
      "v1": 30.432,
      "v2": -26.156,
      "v3": 14.330,
      "v4": 4.868,
      "amplitude": 29.695,
      "phase_angle": 151.741,
      "puckering": "C2'-endo",
      "sugar_class": "~C2'-endo",
      "bin": "32p",
      "cluster": "1b",
      "suiteness": 0.658,
      "filter_rmsd": 0.067,
      "frame": {
        "rmsd": 0.009,
        "origin": [
          27.577,
          41.256,
          -4.040
        ],
        "x_axis": [
          0.259,
          -0.747,
          -0.612
        ],
        "y_axis": [
          -0.958,
          -0.278,
          -0.066
        ],
        "z_axis": [
          -0.121,
          0.604,
          -0.788
        ],
        "quaternion": [
          -0.220,
          0.762,
          -0.559,
          -0.240
        ]
      }
    }
  ],
  "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": "3kq8",
    "num_naChains": 1,
    "naChains": "A=8",
    "num_atoms": 199,
    "num_waters": 36,
    "num_metals": 1,
    "metals_desc": "Mg=1",
    "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": 9,
    "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-stacks.pdb",
        "desc": "an ensemble of base stacks"
      },
      {
        "index": 6,
        "name": "dssr-rotmat.txt",
        "desc": "position vector and rotation matrix"
      },
      {
        "index": 7,
        "name": "dssr-viewV.pdb",
        "desc": "vertical view of the principal moment of inertia"
      },
      {
        "index": 8,
        "name": "dssr-viewH.pdb",
        "desc": "horizontal view of the principal moment of inertia"
      },
      {
        "index": 9,
        "name": "dssr-viewT.pdb",
        "desc": "top view of the principal moment of inertia"
      }
    ],
    "time_used": "999"
  }
}
