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      "suiteness": 0.700,
      "filter_rmsd": 0.027,
      "frame": {
        "rmsd": 0.027,
        "origin": [
          4.634,
          10.602,
          0.606
        ],
        "x_axis": [
          -0.922,
          0.045,
          -0.385
        ],
        "y_axis": [
          -0.385,
          0.028,
          0.923
        ],
        "z_axis": [
          0.052,
          0.999,
          -0.008
        ],
        "quaternion": [
          0.156,
          -0.121,
          0.700,
          0.687
        ]
      }
    },
    {
      "index": 20,
      "index_chain": 10,
      "chain_name": "B",
      "nt_resnum": 10,
      "nt_name": "C",
      "nt_code": "C",
      "nt_id": "///B/10",
      "linked_nts": [
        "///B/9",
        null
      ],
      "nt_type": "RNA",
      "dbn": ")",
      "summary": "anti,~C3'-endo,canonical,non-pair-contact,helix-end,stem-end,coaxial-stack",
      "alpha": -78.261,
      "beta": 179.776,
      "gamma": 54.110,
      "delta": 78.043,
      "epsilon": null,
      "zeta": null,
      "epsilon_zeta": null,
      "bb_type": "--",
      "chi": -161.432,
      "glyco_bond": "anti",
      "C5prime_xyz": [
        -1.511,
        8.838,
        0.747
      ],
      "P_xyz": [
        1.060,
        9.448,
        0.959
      ],
      "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": 2.404,
      "v1": -25.808,
      "v2": 37.098,
      "v3": -37.447,
      "v4": 22.307,
      "amplitude": 38.488,
      "phase_angle": 15.444,
      "puckering": "C3'-endo",
      "sugar_class": "~C3'-endo",
      "bin": "33p",
      "cluster": "1a",
      "suiteness": 0.770,
      "filter_rmsd": 0.065,
      "frame": {
        "rmsd": 0.010,
        "origin": [
          3.935,
          13.919,
          -0.967
        ],
        "x_axis": [
          -0.971,
          -0.019,
          0.240
        ],
        "y_axis": [
          0.240,
          0.001,
          0.971
        ],
        "z_axis": [
          -0.019,
          1.000,
          0.004
        ],
        "quaternion": [
          -0.092,
          0.079,
          0.701,
          0.702
        ]
      }
    }
  ],
  "num_hbonds": 32,
  "hbonds": [
    {
      "index": 1,
      "atom1_serNum": 15,
      "atom2_serNum": 637,
      "donAcc_type": "standard",
      "distance": 2.956,
      "atom1_id": "///A/1/O6",
      "atom2_id": "///B/10/N4",
      "atom_pair": "O:N",
      "residue_pair": "nt:nt"
    },
    {
      "index": 2,
      "atom1_serNum": 16,
      "atom2_serNum": 635,
      "donAcc_type": "standard",
      "distance": 2.966,
      "atom1_id": "///A/1/N1",
      "atom2_id": "///B/10/N3",
      "atom_pair": "N:N",
      "residue_pair": "nt:nt"
    },
    {
      "index": 3,
      "atom1_serNum": 18,
      "atom2_serNum": 634,
      "donAcc_type": "standard",
      "distance": 2.859,
      "atom1_id": "///A/1/N2",
      "atom2_id": "///B/10/O2",
      "atom_pair": "N:O",
      "residue_pair": "nt:nt"
    },
    {
      "index": 4,
      "atom1_serNum": 47,
      "atom2_serNum": 606,
      "donAcc_type": "standard",
      "distance": 2.874,
      "atom1_id": "///A/2/O2",
      "atom2_id": "///B/9/N2",
      "atom_pair": "O:N",
      "residue_pair": "nt:nt"
    },
    {
      "index": 5,
      "atom1_serNum": 48,
      "atom2_serNum": 604,
      "donAcc_type": "standard",
      "distance": 2.952,
      "atom1_id": "///A/2/N3",
      "atom2_id": "///B/9/N1",
      "atom_pair": "N:N",
      "residue_pair": "nt:nt"
    },
    {
      "index": 6,
      "atom1_serNum": 50,
      "atom2_serNum": 603,
      "donAcc_type": "standard",
      "distance": 2.923,
      "atom1_id": "///A/2/N4",
      "atom2_id": "///B/9/O6",
      "atom_pair": "N:O",
      "residue_pair": "nt:nt"
    },
    {
      "index": 7,
      "atom1_serNum": 74,
      "atom2_serNum": 103,
      "donAcc_type": "acceptable",
      "distance": 2.979,
      "atom1_id": "///A/3/O2'",
      "atom2_id": "///A/4/O4'",
      "atom_pair": "O:O",
      "residue_pair": "nt:nt"
    },
    {
      "index": 8,
      "atom1_serNum": 81,
      "atom2_serNum": 573,
      "donAcc_type": "standard",
      "distance": 2.965,
      "atom1_id": "///A/3/N6",
      "atom2_id": "///B/8/O4",
      "atom_pair": "N:O",
      "residue_pair": "nt:nt"
    },
    {
      "index": 9,
      "atom1_serNum": 82,
      "atom2_serNum": 571,
      "donAcc_type": "standard",
      "distance": 2.974,
      "atom1_id": "///A/3/N1",
      "atom2_id": "///B/8/N3",
      "atom_pair": "N:N",
      "residue_pair": "nt:nt"
    },
    {
      "index": 10,
      "atom1_serNum": 99,
      "atom2_serNum": 117,
      "donAcc_type": "standard",
      "distance": 2.820,
      "atom1_id": "///A/4/OP2",
      "atom2_id": "///A/4/N2",
      "atom_pair": "O:N",
      "residue_pair": "nt:nt"
    },
    {
      "index": 11,
      "atom1_serNum": 111,
      "atom2_serNum": 542,
      "donAcc_type": "standard",
      "distance": 2.921,
      "atom1_id": "///A/4/N7",
      "atom2_id": "///B/7/N2",
      "atom_pair": "N:N",
      "residue_pair": "nt:nt"
    },
    {
      "index": 12,
      "atom1_serNum": 114,
      "atom2_serNum": 540,
      "donAcc_type": "standard",
      "distance": 2.846,
      "atom1_id": "///A/4/O6",
      "atom2_id": "///B/7/N1",
      "atom_pair": "O:N",
      "residue_pair": "nt:nt"
    },
    {
      "index": 13,
      "atom1_serNum": 148,
      "atom2_serNum": 508,
      "donAcc_type": "standard",
      "distance": 2.954,
      "atom1_id": "///A/5/O6",
      "atom2_id": "///B/6/N4",
      "atom_pair": "O:N",
      "residue_pair": "nt:nt"
    },
    {
      "index": 14,
      "atom1_serNum": 149,
      "atom2_serNum": 506,
      "donAcc_type": "standard",
      "distance": 2.981,
      "atom1_id": "///A/5/N1",
      "atom2_id": "///B/6/N3",
      "atom_pair": "N:N",
      "residue_pair": "nt:nt"
    },
    {
      "index": 15,
      "atom1_serNum": 151,
      "atom2_serNum": 505,
      "donAcc_type": "standard",
      "distance": 2.904,
      "atom1_id": "///A/5/N2",
      "atom2_id": "///B/6/O2",
      "atom_pair": "N:O",
      "residue_pair": "nt:nt"
    },
    {
      "index": 16,
      "atom1_serNum": 179,
      "atom2_serNum": 477,
      "donAcc_type": "standard",
      "distance": 2.894,
      "atom1_id": "///A/6/O2",
      "atom2_id": "///B/5/N2",
      "atom_pair": "O:N",
      "residue_pair": "nt:nt"
    },
    {
      "index": 17,
      "atom1_serNum": 180,
      "atom2_serNum": 475,
      "donAcc_type": "standard",
      "distance": 2.969,
      "atom1_id": "///A/6/N3",
      "atom2_id": "///B/5/N1",
      "atom_pair": "N:N",
      "residue_pair": "nt:nt"
    },
    {
      "index": 18,
      "atom1_serNum": 182,
      "atom2_serNum": 474,
      "donAcc_type": "standard",
      "distance": 2.952,
      "atom1_id": "///A/6/N4",
      "atom2_id": "///B/5/O6",
      "atom_pair": "N:O",
      "residue_pair": "nt:nt"
    },
    {
      "index": 19,
      "atom1_serNum": 206,
      "atom2_serNum": 236,
      "donAcc_type": "acceptable",
      "distance": 2.813,
      "atom1_id": "///A/7/O2'",
      "atom2_id": "///A/8/O4'",
      "atom_pair": "O:O",
      "residue_pair": "nt:nt"
    },
    {
      "index": 20,
      "atom1_serNum": 214,
      "atom2_serNum": 440,
      "donAcc_type": "standard",
      "distance": 2.855,
      "atom1_id": "///A/7/N1",
      "atom2_id": "///B/4/O6",
      "atom_pair": "N:O",
      "residue_pair": "nt:nt"
    },
    {
      "index": 21,
      "atom1_serNum": 216,
      "atom2_serNum": 437,
      "donAcc_type": "standard",
      "distance": 2.933,
      "atom1_id": "///A/7/N2",
      "atom2_id": "///B/4/N7",
      "atom_pair": "N:N",
      "residue_pair": "nt:nt"
    },
    {
      "index": 22,
      "atom1_serNum": 216,
      "atom2_serNum": 440,
      "donAcc_type": "standard",
      "distance": 3.125,
      "atom1_id": "///A/7/N2",
      "atom2_id": "///B/4/O6",
      "atom_pair": "N:O",
      "residue_pair": "nt:nt"
    },
    {
      "index": 23,
      "atom1_serNum": 245,
      "atom2_serNum": 408,
      "donAcc_type": "standard",
      "distance": 3.006,
      "atom1_id": "///A/8/N3",
      "atom2_id": "///B/3/N1",
      "atom_pair": "N:N",
      "residue_pair": "nt:nt"
    },
    {
      "index": 24,
      "atom1_serNum": 247,
      "atom2_serNum": 407,
      "donAcc_type": "standard",
      "distance": 2.937,
      "atom1_id": "///A/8/O4",
      "atom2_id": "///B/3/N6",
      "atom_pair": "O:N",
      "residue_pair": "nt:nt"
    },
    {
      "index": 25,
      "atom1_serNum": 277,
      "atom2_serNum": 376,
      "donAcc_type": "standard",
      "distance": 2.925,
      "atom1_id": "///A/9/O6",
      "atom2_id": "///B/2/N4",
      "atom_pair": "O:N",
      "residue_pair": "nt:nt"
    },
    {
      "index": 26,
      "atom1_serNum": 278,
      "atom2_serNum": 374,
      "donAcc_type": "standard",
      "distance": 2.946,
      "atom1_id": "///A/9/N1",
      "atom2_id": "///B/2/N3",
      "atom_pair": "N:N",
      "residue_pair": "nt:nt"
    },
    {
      "index": 27,
      "atom1_serNum": 280,
      "atom2_serNum": 373,
      "donAcc_type": "standard",
      "distance": 2.873,
      "atom1_id": "///A/9/N2",
      "atom2_id": "///B/2/O2",
      "atom_pair": "N:O",
      "residue_pair": "nt:nt"
    },
    {
      "index": 28,
      "atom1_serNum": 308,
      "atom2_serNum": 344,
      "donAcc_type": "standard",
      "distance": 2.856,
      "atom1_id": "///A/10/O2",
      "atom2_id": "///B/1/N2",
      "atom_pair": "O:N",
      "residue_pair": "nt:nt"
    },
    {
      "index": 29,
      "atom1_serNum": 309,
      "atom2_serNum": 342,
      "donAcc_type": "standard",
      "distance": 2.964,
      "atom1_id": "///A/10/N3",
      "atom2_id": "///B/1/N1",
      "atom_pair": "N:N",
      "residue_pair": "nt:nt"
    },
    {
      "index": 30,
      "atom1_serNum": 311,
      "atom2_serNum": 341,
      "donAcc_type": "standard",
      "distance": 2.963,
      "atom1_id": "///A/10/N4",
      "atom2_id": "///B/1/O6",
      "atom_pair": "N:O",
      "residue_pair": "nt:nt"
    },
    {
      "index": 31,
      "atom1_serNum": 425,
      "atom2_serNum": 443,
      "donAcc_type": "standard",
      "distance": 2.821,
      "atom1_id": "///B/4/OP2",
      "atom2_id": "///B/4/N2",
      "atom_pair": "O:N",
      "residue_pair": "nt:nt"
    },
    {
      "index": 32,
      "atom1_serNum": 532,
      "atom2_serNum": 562,
      "donAcc_type": "acceptable",
      "distance": 2.910,
      "atom1_id": "///B/7/O2'",
      "atom2_id": "///B/8/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": "1f5h",
    "num_naChains": 2,
    "naChains": "A=10,B=10",
    "num_atoms": 650,
    "num_waters": 0,
    "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": 13,
    "auxfiles": [
      {
        "index": 1,
        "name": "dssr-pairs.pdb",
        "desc": "an ensemble of base pairs"
      },
      {
        "index": 2,
        "name": "dssr-stems.pdb",
        "desc": "an ensemble of stems"
      },
      {
        "index": 3,
        "name": "dssr-helices.pdb",
        "desc": "an ensemble of helices (coaxial stacking)"
      },
      {
        "index": 4,
        "name": "dssr-iloops.pdb",
        "desc": "an ensemble of internal loops"
      },
      {
        "index": 5,
        "name": "dssr-2ndstrs.bpseq",
        "desc": "secondary structure in bpseq format"
      },
      {
        "index": 6,
        "name": "dssr-2ndstrs.ct",
        "desc": "secondary structure in connectivity table format"
      },
      {
        "index": 7,
        "name": "dssr-2ndstrs.dbn",
        "desc": "secondary structure in dot-bracket notation"
      },
      {
        "index": 8,
        "name": "dssr-torsions.txt",
        "desc": "backbone torsion angles and suite names"
      },
      {
        "index": 9,
        "name": "dssr-stacks.pdb",
        "desc": "an ensemble of base stacks"
      },
      {
        "index": 10,
        "name": "dssr-rotmat.txt",
        "desc": "position vector and rotation matrix"
      },
      {
        "index": 11,
        "name": "dssr-viewV.pdb",
        "desc": "vertical view of the principal moment of inertia"
      },
      {
        "index": 12,
        "name": "dssr-viewH.pdb",
        "desc": "horizontal view of the principal moment of inertia"
      },
      {
        "index": 13,
        "name": "dssr-viewT.pdb",
        "desc": "top view of the principal moment of inertia"
      }
    ],
    "time_used": "999"
  }
}
