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      "nts_short": "GAU",
      "nts_long": "///A/66,///A/67,///A/68"
    },
    {
      "index": 10,
      "num_nts": 3,
      "nts_short": "GCG",
      "nts_long": "///A/76,///A/77,///A/78"
    },
    {
      "index": 11,
      "num_nts": 4,
      "nts_short": "AAAC",
      "nts_long": "///A/44,///A/45,///A/47,///A/48"
    },
    {
      "index": 12,
      "num_nts": 4,
      "nts_short": "UAGG",
      "nts_long": "///A/52,///A/53,///A/83,///A/82"
    },
    {
      "index": 13,
      "num_nts": 4,
      "nts_short": "UGAC",
      "nts_long": "///A/59,///A/60,///A/61,///A/63"
    },
    {
      "index": 14,
      "num_nts": 4,
      "nts_short": "AAUC",
      "nts_long": "///A/69,///A/70,///A/71,///A/73"
    },
    {
      "index": 15,
      "num_nts": 6,
      "nts_short": "CCGUGC",
      "nts_long": "///A/23,///A/24,///A/33,///A/32,///A/31,///A/30"
    }
  ],
  "nonStack": {
    "num_nts": 4,
    "nts_short": "UUGa",
    "nts_long": "///A/25,///A/62,///A/72,///A/91"
  },
  "num_atom2bases": 7,
  "atom2bases": [
    {
      "index": 1,
      "type": "phosphate",
      "atom": "///A/42/OP2",
      "nt": "///A/40",
      "vert_dist": 3.175
    },
    {
      "index": 2,
      "type": "other",
      "atom": "///A/114/N3'",
      "nt": "///A/42",
      "vert_dist": 3.335
    },
    {
      "index": 3,
      "type": "other",
      "atom": "///A/114/N3'",
      "nt": "///A/43",
      "vert_dist": 3.422
    },
    {
      "index": 4,
      "type": "sugar",
      "atom": "///A/44/O4'",
      "nt": "///A/45",
      "vert_dist": 2.936
    },
    {
      "index": 5,
      "type": "sugar",
      "atom": "///A/52/O4'",
      "nt": "///A/53",
      "vert_dist": 3.114
    },
    {
      "index": 6,
      "type": "phosphate",
      "atom": "///A/70/OP2",
      "nt": "///A/68",
      "vert_dist": 2.934
    },
    {
      "index": 7,
      "type": "sugar",
      "atom": "///A/51/O4'",
      "nt": "///A/84",
      "vert_dist": 2.926
    }
  ],
  "num_hairpins": 1,
  "hairpins": [
    {
      "index": 1,
      "type": "hairpin loop",
      "bridging_nts": [
        6
      ],
      "stem_indices": [
        5
      ],
      "summary": "[1] 6 [A.66 A.73] 4",
      "num_nts": 8,
      "nts_short": "GAUAAUGC",
      "nts_long": "///A/66,///A/67,///A/68,///A/69,///A/70,///A/71,///A/72,///A/73",
      "num_stems": 1,
      "bridges": [
        {
          "index": 1,
          "num_nts": 6,
          "nts_short": "AUAAUG",
          "nts_long": "///A/67,///A/68,///A/69,///A/70,///A/71,///A/72"
        }
      ]
    }
  ],
  "num_bulges": 1,
  "bulges": [
    {
      "index": 1,
      "type": "bulge",
      "bridging_nts": [
        0,
        6
      ],
      "stem_indices": [
        -1,
        3
      ],
      "summary": "[2] 0 6 [A.20 A.45 A.21 A.38] 1 3",
      "num_nts": 10,
      "nts_short": "UGCUGAGAAA",
      "nts_long": "///A/20,///A/21,///A/38,///A/39,///A/40,///A/41,///A/42,///A/43,///A/44,///A/45",
      "num_stems": 2,
      "bridges": [
        {
          "index": 1,
          "num_nts": 0,
          "nts_short": "",
          "nts_long": ""
        },
        {
          "index": 2,
          "num_nts": 6,
          "nts_short": "UGAGAA",
          "nts_long": "///A/39,///A/40,///A/41,///A/42,///A/43,///A/44"
        }
      ]
    }
  ],
  "num_iloops": 2,
  "iloops": [
    {
      "index": 1,
      "type": "asymmetric internal loop",
      "bridging_nts": [
        1,
        2
      ],
      "stem_indices": [
        2,
        -1
      ],
      "summary": "[2] 1 2 [A.18 A.48 A.20 A.45] 4 1",
      "num_nts": 7,
      "nts_short": "GGUAUAC",
      "nts_long": "///A/18,///A/19,///A/20,///A/45,///A/46,///A/47,///A/48",
      "num_stems": 2,
      "bridges": [
        {
          "index": 1,
          "num_nts": 1,
          "nts_short": "G",
          "nts_long": "///A/19"
        },
        {
          "index": 2,
          "num_nts": 2,
          "nts_short": "UA",
          "nts_long": "///A/46,///A/47"
        }
      ]
    },
    {
      "index": 2,
      "type": "symmetric internal loop",
      "bridging_nts": [
        3,
        3
      ],
      "stem_indices": [
        4,
        5
      ],
      "summary": "[2] 3 3 [A.59 A.80 A.63 A.76] 3 4",
      "num_nts": 10,
      "nts_short": "UGAUCGCGUA",
      "nts_long": "///A/59,///A/60,///A/61,///A/62,///A/63,///A/76,///A/77,///A/78,///A/79,///A/80",
      "num_stems": 2,
      "bridges": [
        {
          "index": 1,
          "num_nts": 3,
          "nts_short": "GAU",
          "nts_long": "///A/60,///A/61,///A/62"
        },
        {
          "index": 2,
          "num_nts": 3,
          "nts_short": "CGU",
          "nts_long": "///A/77,///A/78,///A/79"
        }
      ]
    }
  ],
  "num_junctions": 1,
  "junctions": [
    {
      "index": 1,
      "type": "3-way junction",
      "bridging_nts": [
        0,
        5,
        2
      ],
      "stem_indices": [
        1,
        2,
        4
      ],
      "summary": "[3] 0 5 2 [A.14 A.85 A.15 A.51 A.57 A.82] 6 4 3",
      "num_nts": 13,
      "nts_short": "UCGUAUCACGGAA",
      "nts_long": "///A/14,///A/15,///A/51,///A/52,///A/53,///A/54,///A/55,///A/56,///A/57,///A/82,///A/83,///A/84,///A/85",
      "num_stems": 3,
      "bridges": [
        {
          "index": 1,
          "num_nts": 0,
          "nts_short": "",
          "nts_long": ""
        },
        {
          "index": 2,
          "num_nts": 5,
          "nts_short": "UAUCA",
          "nts_long": "///A/52,///A/53,///A/54,///A/55,///A/56"
        },
        {
          "index": 3,
          "num_nts": 2,
          "nts_short": "GA",
          "nts_long": "///A/83,///A/84"
        }
      ]
    }
  ],
  "num_ssSegments": 2,
  "ssSegments": [
    {
      "index": 1,
      "is_broken": true,
      "num_nts": 8,
      "nts_short": "CUCGUGAA",
      "nts_long": "///A/24,///A/25,///A/30,///A/31,///A/32,///A/33,///A/34,///A/35"
    },
    {
      "index": 2,
      "num_nts": 1,
      "nts_short": "a",
      "nts_long": "///A/91"
    }
  ],
  "num_Aminors": 6,
  "Aminors": [
    {
      "index": 1,
      "type": "II",
      "desc_short": "A vs G-C (WC)",
      "desc_long": "///A/41 vs ///A/18,///A/48",
      "A_nt1": {
        "desc": "///A/41 vs ///A/18",
        "face_type": "+",
        "hbonds_num": 0,
        "hbonds_desc": ""
      },
      "A_nt2": {
        "desc": "///A/41 vs ///A/48",
        "face_type": "-",
        "hbonds_num": 2,
        "hbonds_desc": "O2'(hydroxyl)-O2'(hydroxyl)[2.92],N3-O2'(hydroxyl)[2.53]"
      }
    },
    {
      "index": 2,
      "type": "X",
      "desc_short": "A vs G-C (WC)",
      "desc_long": "///A/43 vs ///A/21,///A/38",
      "A_nt1": {
        "desc": "///A/43 vs ///A/21",
        "face_type": "+",
        "hbonds_num": 1,
        "hbonds_desc": "O2'(hydroxyl)-N7[2.63]"
      },
      "A_nt2": {
        "desc": "///A/43 vs ///A/38",
        "face_type": "-",
        "hbonds_num": 0,
        "hbonds_desc": ""
      }
    },
    {
      "index": 3,
      "type": "I",
      "desc_short": "A vs G-C (WC)",
      "desc_long": "///A/56 vs ///A/17,///A/49",
      "A_nt1": {
        "desc": "///A/56 vs ///A/17",
        "face_type": "+",
        "hbonds_num": 2,
        "hbonds_desc": "N1-O2'(hydroxyl)[2.93],N3-N2(amino)[3.19]"
      },
      "A_nt2": {
        "desc": "///A/56 vs ///A/49",
        "face_type": "-",
        "hbonds_num": 1,
        "hbonds_desc": "O2'(hydroxyl)-O2'(hydroxyl)[3.06]"
      }
    },
    {
      "index": 4,
      "type": "X",
      "desc_short": "A vs C-G (WC)",
      "desc_long": "///A/69 vs ///A/22,///A/37",
      "A_nt1": {
        "desc": "///A/69 vs ///A/22",
        "face_type": "-",
        "hbonds_num": 0,
        "hbonds_desc": ""
      },
      "A_nt2": {
        "desc": "///A/69 vs ///A/37",
        "face_type": "+",
        "hbonds_num": 1,
        "hbonds_desc": "N1-N2(amino)[3.32]"
      }
    },
    {
      "index": 5,
      "type": "II",
      "desc_short": "A vs C-G (WC)",
      "desc_long": "///A/70 vs ///A/22,///A/37",
      "A_nt1": {
        "desc": "///A/70 vs ///A/22",
        "face_type": "-",
        "hbonds_num": 3,
        "hbonds_desc": "O2'(hydroxyl)-O3'[3.01],O2'(hydroxyl)-O2'(hydroxyl)[2.64],N3-O2'(hydroxyl)[2.81]"
      },
      "A_nt2": {
        "desc": "///A/70 vs ///A/37",
        "face_type": "+",
        "hbonds_num": 0,
        "hbonds_desc": ""
      }
    },
    {
      "index": 6,
      "type": "I",
      "desc_short": "A vs G-C (WC)",
      "desc_long": "///A/84 vs ///A/16,///A/50",
      "A_nt1": {
        "desc": "///A/84 vs ///A/16",
        "face_type": "-",
        "hbonds_num": 2,
        "hbonds_desc": "O2'(hydroxyl)-O2'(hydroxyl)[2.93],N3-N2(amino)[3.13]"
      },
      "A_nt2": {
        "desc": "///A/84 vs ///A/50",
        "face_type": "+",
        "hbonds_num": 1,
        "hbonds_desc": "N1-O2'(hydroxyl)[2.56]"
      }
    }
  ],
  "num_riboseZippers": 1,
  "riboseZippers": [
    {
      "index": 1,
      "num_nts": 4,
      "nts_short": "GCAU",
      "nts_long": "///A/21,///A/22,///A/70,///A/71"
    }
  ],
  "num_splayUnits": 5,
  "splayUnits": [
    {
      "index": 1,
      "num_nts": 2,
      "nts_short": "UG",
      "nts_long": "///A/20,///A/21"
    },
    {
      "index": 2,
      "num_nts": 2,
      "nts_short": "GU",
      "nts_long": "///A/51,///A/52"
    },
    {
      "index": 3,
      "num_nts": 3,
      "nts_short": "AUC",
      "nts_long": "///A/61,///A/62,///A/63"
    },
    {
      "index": 4,
      "num_nts": 3,
      "nts_short": "UGC",
      "nts_long": "///A/71,///A/72,///A/73"
    },
    {
      "index": 5,
      "num_nts": 2,
      "nts_short": "Ca",
      "nts_long": "///A/90,///A/91"
    }
  ],
  "dbn": {
    "all_chains": {
      "num_nts": 79,
      "num_chars": 80,
      "bseq": "GCGACUCGGGGUGCCCU&CGUGAAGGCUGAGAAAUACCCGUAUCACCUGAUCUGGAUAAUGCCAGCGUAGGGAAGUCGCa",
      "bseqUP": "GCGACUCGGGGUGCCCU&CGUGAAGGCUGAGAAAUACCCGUAUCACCUGAUCUGGAUAAUGCCAGCGUAGGGAAGUCGCA",
      "sstr": "((((((((((.((((..&......)))......)..)))).....(((...((((......))))...)))..)))))).",
      "form": "AAAAAAAAA...AA..-&A.....AAA......--AAAA..---.AA....AAAAA.AA..AAA..--AA...BAAAA.-"
    },
    "chain_A": {
      "num_nts": 79,
      "num_chars": 80,
      "bseq": "GCGACUCGGGGUGCCCU&CGUGAAGGCUGAGAAAUACCCGUAUCACCUGAUCUGGAUAAUGCCAGCGUAGGGAAGUCGCa",
      "bseqUP": "GCGACUCGGGGUGCCCU&CGUGAAGGCUGAGAAAUACCCGUAUCACCUGAUCUGGAUAAUGCCAGCGUAGGGAAGUCGCA",
      "sstr": "((((((((((.((((..&......)))......)..)))).....(((...((((......))))...)))..)))))).",
      "form": "AAAAAAAAA...AA..-&A.....AAA......--AAAA..---.AA....AAAAA.AA..AAA..--AA...BAAAA.-"
    }
  },
  "chains": {
    "chain_A": {
      "num_nts": 79,
      "bseq": "GCGACUCGGGGUGCCCU&CGUGAAGGCUGAGAAAUACCCGUAUCACCUGAUCUGGAUAAUGCCAGCGUAGGGAAGUCGCa",
      "sstr": "((((((((((.((((..&......)))......)..)))).....(((...((((......))))...)))..)))))).",
      "form": "AAAAAAAAA...AA..-&A.....AAA......--AAAA..---.AA....AAAAA.AA..AAA..--AA...BAAAA.-",
      "helical_rise": 0.133,
      "helical_rise_std": 3.248,
      "helical_axis": [
        -0.544,
        0.812,
        -0.211
      ],
      "point1": [
        19.180,
        35.574,
        64.048
      ],
      "point2": [
        13.921,
        43.433,
        62.006
      ],
      "num_chars": 235,
      "suite": "G1aC1aG1aA1aC1aU1aC1aG1aG1cG1aG!!U5nG1aC1aC1aC!!U..C1cG1cU!!G1aA1aA1aG1aG1aC1aU1aG1gA1aG1mA!!A!!A!!U!!A1aC1aC1aC1aG3aU!!A!!U!!C7dA1aC1aC1aU1aG!!A!!U!!C1aU1aG1aG1cA1aU1gA1aA1aU1gG!!C1aC1aA1aG1aC!!G!!U!!A1aG1cG1aG7aA!!A!!G1aU1aC1aG1aC!!a"
    }
  },
  "num_nts": 79,
  "nts": [
    {
      "index": 1,
      "index_chain": 1,
      "chain_name": "A",
      "nt_resnum": 9,
      "nt_name": "G",
      "nt_code": "G",
      "nt_id": "///A/9",
      "linked_nts": [
        null,
        "///A/10"
      ],
      "nt_type": "RNA",
      "dbn": "(",
      "summary": "anti,~C3'-endo,BI,canonical,non-pair-contact,helix-end,stem-end,coaxial-stack",
      "alpha": null,
      "beta": null,
      "gamma": 61.650,
      "delta": 84.091,
      "epsilon": -150.553,
      "zeta": -72.121,
      "epsilon_zeta": -78.432,
      "bb_type": "BI",
      "chi": -164.297,
      "glyco_bond": "anti",
      "C5prime_xyz": [
        -1.389,
        8.685,
        0.679
      ],
      "P_xyz": [
        null,
        null,
        null
      ],
      "form": "A",
      "ssZp": 4.343,
      "Dp": 4.634,
      "splay_angle": 21.678,
      "splay_distance": 3.416,
      "splay_ratio": 0.190,
      "d22": null,
      "d64": null,
      "eta": null,
      "theta": null,
      "eta_prime": null,
      "theta_prime": null,
      "eta_base": null,
      "theta_base": null,
      "v0": 4.489,
      "v1": -28.075,
      "v2": 39.580,
      "v3": -37.993,
      "v4": 21.147,
      "amplitude": 40.511,
      "phase_angle": 12.307,
      "puckering": "C3'-endo",
      "sugar_class": "~C3'-endo",
      "bin": "inc",
      "cluster": "__",
      "suiteness": 0.000,
      "filter_rmsd": 0.012,
      "frame": {
        "rmsd": 0.012,
        "origin": [
          30.020,
          36.427,
          34.048
        ],
        "x_axis": [
          0.016,
          -0.997,
          -0.080
        ],
        "y_axis": [
          0.740,
          -0.042,
          0.672
        ],
        "z_axis": [
          -0.673,
          -0.070,
          0.736
        ],
        "quaternion": [
          0.654,
          0.284,
          -0.227,
          -0.664
        ]
      }
    },
    {
      "index": 2,
      "index_chain": 2,
      "chain_name": "A",
      "nt_resnum": 10,
      "nt_name": "C",
      "nt_code": "C",
      "nt_id": "///A/10",
      "linked_nts": [
        "///A/9",
        "///A/11"
      ],
      "nt_type": "RNA",
      "dbn": "(",
      "summary": "anti,~C3'-endo,BI,canonical,non-pair-contact,helix,stem,coaxial-stack",
      "alpha": -66.259,
      "beta": 172.836,
      "gamma": 53.278,
      "delta": 81.845,
      "epsilon": -154.411,
      "zeta": -68.485,
      "epsilon_zeta": -85.926,
      "bb_type": "BI",
      "chi": -159.428,
      "glyco_bond": "anti",
      "C5prime_xyz": [
        -1.221,
        8.763,
        0.481
      ],
      "P_xyz": [
        1.386,
        9.116,
        0.413
      ],
      "form": "A",
      "ssZp": 4.481,
      "Dp": 4.638,
      "splay_angle": 23.542,
      "splay_distance": 3.753,
      "splay_ratio": 0.207,
      "d22": null,
      "d64": null,
      "eta": 164.196,
      "theta": -144.041,
      "eta_prime": 179.636,
      "theta_prime": -143.663,
      "eta_base": -131.362,
      "theta_base": -118.465,
      "v0": 3.217,
      "v1": -27.195,
      "v2": 39.621,
      "v3": -38.559,
      "v4": 22.347,
      "amplitude": 40.841,
      "phase_angle": 14.040,
      "puckering": "C3'-endo",
      "sugar_class": "~C3'-endo",
      "bin": "33p",
      "cluster": "1a",
      "suiteness": 0.976,
      "filter_rmsd": 0.063,
      "frame": {
        "rmsd": 0.004,
        "origin": [
          27.174,
          35.148,
          35.439
        ],
        "x_axis": [
          0.435,
          -0.826,
          0.357
        ],
        "y_axis": [
          0.516,
          0.554,
          0.653
        ],
        "z_axis": [
          -0.738,
          -0.100,
          0.668
        ],
        "quaternion": [
          0.815,
          0.231,
          -0.336,
          -0.412
        ]
      }
    },
    {
      "index": 3,
      "index_chain": 3,
      "chain_name": "A",
      "nt_resnum": 11,
      "nt_name": "G",
      "nt_code": "G",
      "nt_id": "///A/11",
      "linked_nts": [
        "///A/10",
        "///A/12"
      ],
      "nt_type": "RNA",
      "dbn": "(",
      "summary": "anti,~C3'-endo,BI,canonical,non-pair-contact,helix,stem,coaxial-stack",
      "alpha": -63.030,
      "beta": 178.534,
      "gamma": 51.554,
      "delta": 83.679,
      "epsilon": -165.098,
      "zeta": -68.519,
      "epsilon_zeta": -96.579,
      "bb_type": "BI",
      "chi": -159.222,
      "glyco_bond": "anti",
      "C5prime_xyz": [
        -1.346,
        8.791,
        0.506
      ],
      "P_xyz": [
        1.219,
        9.277,
        0.762
      ],
      "form": "A",
      "ssZp": 4.436,
      "Dp": 4.482,
      "splay_angle": 22.755,
      "splay_distance": 3.539,
      "splay_ratio": 0.198,
      "d22": null,
      "d64": null,
      "eta": 170.149,
      "theta": -151.409,
      "eta_prime": -174.560,
      "theta_prime": -150.815,
      "eta_base": -133.611,
      "theta_base": -122.530,
      "v0": 1.915,
      "v1": -24.730,
      "v2": 36.739,
      "v3": -36.697,
      "v4": 21.932,
      "amplitude": 38.180,
      "phase_angle": 15.794,
      "puckering": "C3'-endo",
      "sugar_class": "~C3'-endo",
      "bin": "33p",
      "cluster": "1a",
      "suiteness": 0.951,
      "filter_rmsd": 0.005,
      "frame": {
        "rmsd": 0.005,
        "origin": [
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      "atom2_serNum": 1253,
      "donAcc_type": "standard",
      "distance": 2.312,
      "atom1_id": "///A/72/OP1",
      "atom2_id": "///A/72/N2",
      "atom_pair": "O:N",
      "residue_pair": "nt:nt"
    },
    {
      "index": 130,
      "atom1_serNum": 1235,
      "atom2_serNum": 1273,
      "donAcc_type": "standard",
      "distance": 2.918,
      "atom1_id": "///A/72/OP2",
      "atom2_id": "///A/73/N4",
      "atom_pair": "O:N",
      "residue_pair": "nt:nt"
    },
    {
      "index": 131,
      "atom1_serNum": 1243,
      "atom2_serNum": 1696,
      "donAcc_type": "acceptable",
      "distance": 3.332,
      "atom1_id": "///A/72/O2'",
      "atom2_id": "///A/114/O1A",
      "atom_pair": "O:O",
      "residue_pair": "nt:ligand"
    },
    {
      "index": 132,
      "atom1_serNum": 1306,
      "atom2_serNum": 1324,
      "donAcc_type": "acceptable",
      "distance": 2.914,
      "atom1_id": "///A/75/O2'",
      "atom2_id": "///A/76/O4'",
      "atom_pair": "O:O",
      "residue_pair": "nt:nt"
    },
    {
      "index": 133,
      "atom1_serNum": 1343,
      "atom2_serNum": 1371,
      "donAcc_type": "acceptable",
      "distance": 2.875,
      "atom1_id": "///A/77/OP2",
      "atom2_id": "///A/78/O2'",
      "atom_pair": "O:O",
      "residue_pair": "nt:nt"
    },
    {
      "index": 134,
      "atom1_serNum": 1358,
      "atom2_serNum": 1701,
      "donAcc_type": "standard",
      "distance": 3.541,
      "atom1_id": "///A/77/N4",
      "atom2_id": "///A/114/O2B",
      "atom_pair": "N:O",
      "residue_pair": "nt:ligand"
    },
    {
      "index": 135,
      "atom1_serNum": 1371,
      "atom2_serNum": 1386,
      "donAcc_type": "acceptable",
      "distance": 2.353,
      "atom1_id": "///A/78/O2'",
      "atom2_id": "///A/79/OP2",
      "atom_pair": "O:O",
      "residue_pair": "nt:nt"
    },
    {
      "index": 136,
      "atom1_serNum": 1379,
      "atom2_serNum": 1701,
      "donAcc_type": "standard",
      "distance": 2.646,
      "atom1_id": "///A/78/N1",
      "atom2_id": "///A/114/O2B",
      "atom_pair": "N:O",
      "residue_pair": "nt:ligand"
    },
    {
      "index": 137,
      "atom1_serNum": 1394,
      "atom2_serNum": 1397,
      "donAcc_type": "acceptable",
      "distance": 2.677,
      "atom1_id": "///A/79/O2'",
      "atom2_id": "///A/80/OP1",
      "atom_pair": "O:O",
      "residue_pair": "nt:nt"
    },
    {
      "index": 138,
      "atom1_serNum": 1519,
      "atom2_serNum": 1533,
      "donAcc_type": "acceptable",
      "distance": 2.644,
      "atom1_id": "///A/85/O2'",
      "atom2_id": "///A/86/OP2",
      "atom_pair": "O:O",
      "residue_pair": "nt:nt"
    },
    {
      "index": 139,
      "atom1_serNum": 1519,
      "atom2_serNum": 1534,
      "donAcc_type": "acceptable",
      "distance": 3.068,
      "atom1_id": "///A/85/O2'",
      "atom2_id": "///A/86/O5'",
      "atom_pair": "O:O",
      "residue_pair": "nt:nt"
    },
    {
      "index": 140,
      "atom1_serNum": 1519,
      "atom2_serNum": 1537,
      "donAcc_type": "acceptable",
      "distance": 3.102,
      "atom1_id": "///A/85/O2'",
      "atom2_id": "///A/86/O4'",
      "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": "2hoj",
    "num_naChains": 1,
    "naChains": "A=79",
    "num_atoms": 1723,
    "num_waters": 22,
    "num_metals": 14,
    "metals_desc": "Mg=2,Mn=12",
    "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": 20,
    "auxfiles": [
      {
        "index": 1,
        "name": "dssr-pairs.pdb",
        "desc": "an ensemble of base pairs"
      },
      {
        "index": 2,
        "name": "dssr-multiplets.pdb",
        "desc": "an ensemble of multiplets"
      },
      {
        "index": 3,
        "name": "dssr-stems.pdb",
        "desc": "an ensemble of stems"
      },
      {
        "index": 4,
        "name": "dssr-helices.pdb",
        "desc": "an ensemble of helices (coaxial stacking)"
      },
      {
        "index": 5,
        "name": "dssr-hairpins.pdb",
        "desc": "an ensemble of hairpin loops"
      },
      {
        "index": 6,
        "name": "dssr-bulges.pdb",
        "desc": "an ensemble of bulges"
      },
      {
        "index": 7,
        "name": "dssr-iloops.pdb",
        "desc": "an ensemble of internal loops"
      },
      {
        "index": 8,
        "name": "dssr-junctions.pdb",
        "desc": "an ensemble of junctions (multi-branch)"
      },
      {
        "index": 9,
        "name": "dssr-2ndstrs.bpseq",
        "desc": "secondary structure in bpseq format"
      },
      {
        "index": 10,
        "name": "dssr-2ndstrs.ct",
        "desc": "secondary structure in connectivity table format"
      },
      {
        "index": 11,
        "name": "dssr-2ndstrs.dbn",
        "desc": "secondary structure in dot-bracket notation"
      },
      {
        "index": 12,
        "name": "dssr-torsions.txt",
        "desc": "backbone torsion angles and suite names"
      },
      {
        "index": 13,
        "name": "dssr-splays.pdb",
        "desc": "an ensemble of splayed-apart units"
      },
      {
        "index": 14,
        "name": "dssr-Aminors.pdb",
        "desc": "an ensemble of A minor motifs (types I and II)"
      },
      {
        "index": 15,
        "name": "dssr-stacks.pdb",
        "desc": "an ensemble of base stacks"
      },
      {
        "index": 16,
        "name": "dssr-atom2bases.pdb",
        "desc": "an ensemble of atom-base stacking interactions"
      },
      {
        "index": 17,
        "name": "dssr-rotmat.txt",
        "desc": "position vector and rotation matrix"
      },
      {
        "index": 18,
        "name": "dssr-viewV.pdb",
        "desc": "vertical view of the principal moment of inertia"
      },
      {
        "index": 19,
        "name": "dssr-viewH.pdb",
        "desc": "horizontal view of the principal moment of inertia"
      },
      {
        "index": 20,
        "name": "dssr-viewT.pdb",
        "desc": "top view of the principal moment of inertia"
      }
    ],
    "time_used": "999"
  }
}
