--- a
+++ b/tests/data/pdb/1cos_helix.pdb
@@ -0,0 +1,432 @@
+COMPND    COILED SERINE
+HETATM    1  C   ACE B   0       5.232 -37.150  18.595  1.00 33.02           C  
+HETATM    2  O   ACE B   0       6.066 -36.385  18.146  1.00 47.02           O  
+HETATM    3  CH3 ACE B   0       5.663 -38.340  19.417  1.00 37.37           C  
+ATOM      4  N   GLU B   1       3.924 -36.949  18.539  1.00 23.67           N  
+ATOM      5  CA  GLU B   1       3.293 -35.914  17.768  1.00 23.32           C  
+ATOM      6  C   GLU B   1       3.627 -34.502  18.253  1.00 25.41           C  
+ATOM      7  O   GLU B   1       3.845 -33.607  17.426  1.00 31.37           O  
+ATOM      8  CB  GLU B   1       1.802 -36.243  17.777  1.00 35.07           C  
+ATOM      9  CG  GLU B   1       0.956 -35.205  17.064  1.00 42.48           C  
+ATOM     10  CD  GLU B   1       1.053 -35.354  15.601  1.00 66.52           C  
+ATOM     11  OE1 GLU B   1       0.961 -36.600  15.217  1.00 59.93           O  
+ATOM     12  OE2 GLU B   1       1.207 -34.399  14.878  1.00 56.20           O  
+ATOM     13  N   TRP B   2       3.738 -34.287  19.599  1.00 40.69           N  
+ATOM     14  CA  TRP B   2       4.136 -32.963  20.147  1.00 46.54           C  
+ATOM     15  C   TRP B   2       5.581 -32.616  19.760  1.00 39.34           C  
+ATOM     16  O   TRP B   2       5.966 -31.511  19.327  1.00 29.48           O  
+ATOM     17  CB  TRP B   2       4.019 -32.920  21.688  1.00 29.62           C  
+ATOM     18  CG  TRP B   2       4.245 -31.556  22.277  1.00 18.07           C  
+ATOM     19  CD1 TRP B   2       3.306 -30.609  22.484  1.00 24.21           C  
+ATOM     20  CD2 TRP B   2       5.437 -31.056  22.884  1.00 19.26           C  
+ATOM     21  NE1 TRP B   2       3.847 -29.479  22.989  1.00 16.67           N  
+ATOM     22  CE2 TRP B   2       5.168 -29.692  23.201  1.00 18.03           C  
+ATOM     23  CE3 TRP B   2       6.761 -31.564  22.989  1.00 22.82           C  
+ATOM     24  CZ2 TRP B   2       6.138 -28.856  23.764  1.00 24.43           C  
+ATOM     25  CZ3 TRP B   2       7.740 -30.686  23.425  1.00 24.17           C  
+ATOM     26  CH2 TRP B   2       7.425 -29.354  23.818  1.00 27.28           C  
+ATOM     27  N   GLU B   3       6.401 -33.645  19.877  1.00 24.60           N  
+ATOM     28  CA  GLU B   3       7.814 -33.553  19.531  1.00 28.80           C  
+ATOM     29  C   GLU B   3       8.080 -33.189  18.098  1.00 24.04           C  
+ATOM     30  O   GLU B   3       8.901 -32.327  17.828  1.00 28.93           O  
+ATOM     31  CB  GLU B   3       8.545 -34.844  19.914  1.00 36.12           C  
+ATOM     32  CG  GLU B   3       9.460 -34.538  21.106  1.00 46.80           C  
+ATOM     33  CD  GLU B   3      10.722 -33.889  20.642  1.00 38.34           C  
+ATOM     34  OE1 GLU B   3      10.554 -32.735  20.052  1.00 49.77           O  
+ATOM     35  OE2 GLU B   3      11.738 -34.525  20.563  1.00 59.59           O  
+ATOM     36  N   ALA B   4       7.365 -33.861  17.190  1.00 26.04           N  
+ATOM     37  CA  ALA B   4       7.382 -33.493  15.761  1.00 35.74           C  
+ATOM     38  C   ALA B   4       7.031 -32.021  15.573  1.00 26.57           C  
+ATOM     39  O   ALA B   4       7.741 -31.314  14.903  1.00 34.25           O  
+ATOM     40  CB  ALA B   4       6.422 -34.301  14.889  1.00 29.01           C  
+ATOM     41  N   LEU B   5       5.932 -31.533  16.154  1.00 30.99           N  
+ATOM     42  CA  LEU B   5       5.574 -30.127  16.016  1.00 24.10           C  
+ATOM     43  C   LEU B   5       6.658 -29.274  16.628  1.00 23.86           C  
+ATOM     44  O   LEU B   5       6.834 -28.127  16.247  1.00 28.01           O  
+ATOM     45  CB  LEU B   5       4.257 -29.811  16.773  1.00 35.11           C  
+ATOM     46  CG  LEU B   5       3.080 -30.706  16.335  1.00 44.77           C  
+ATOM     47  CD1 LEU B   5       1.791 -30.216  16.948  1.00 36.06           C  
+ATOM     48  CD2 LEU B   5       2.902 -30.584  14.835  1.00 44.44           C  
+ATOM     49  N   GLU B   6       7.271 -29.800  17.688  1.00 36.59           N  
+ATOM     50  CA  GLU B   6       8.291 -29.075  18.442  1.00 36.46           C  
+ATOM     51  C   GLU B   6       9.585 -28.840  17.642  1.00 34.82           C  
+ATOM     52  O   GLU B   6      10.107 -27.695  17.525  1.00 25.11           O  
+ATOM     53  CB  GLU B   6       8.578 -29.772  19.766  1.00 29.99           C  
+ATOM     54  CG  GLU B   6       9.737 -29.085  20.470  1.00 35.24           C  
+ATOM     55  CD  GLU B   6       9.319 -27.803  21.112  1.00 55.03           C  
+ATOM     56  OE1 GLU B   6       8.167 -27.365  21.101  1.00 52.28           O  
+ATOM     57  OE2 GLU B   6      10.325 -27.234  21.726  1.00 44.63           O  
+ATOM     58  N   LYS B   7      10.044 -29.931  17.012  1.00 28.23           N  
+ATOM     59  CA  LYS B   7      11.186 -29.860  16.108  1.00 30.16           C  
+ATOM     60  C   LYS B   7      10.948 -28.825  14.988  1.00 36.66           C  
+ATOM     61  O   LYS B   7      11.731 -27.894  14.809  1.00 36.99           O  
+ATOM     62  CB  LYS B   7      11.523 -31.221  15.497  1.00 27.60           C  
+ATOM     63  CG  LYS B   7      11.896 -32.293  16.502  1.00 35.02           C  
+ATOM     64  CD  LYS B   7      12.378 -33.553  15.792  1.00 55.04           C  
+ATOM     65  CE  LYS B   7      12.555 -34.800  16.677  1.00 68.79           C  
+ATOM     66  NZ  LYS B   7      11.434 -35.792  16.646  1.00 52.02           N  
+ATOM     67  N   LYS B   8       9.782 -28.945  14.317  1.00 25.58           N  
+ATOM     68  CA  LYS B   8       9.324 -28.132  13.201  1.00 17.75           C  
+ATOM     69  C   LYS B   8       9.363 -26.661  13.556  1.00 18.13           C  
+ATOM     70  O   LYS B   8       9.994 -25.870  12.866  1.00 28.85           O  
+ATOM     71  CB  LYS B   8       7.902 -28.550  12.789  1.00 35.35           C  
+ATOM     72  CG  LYS B   8       7.716 -29.844  11.969  1.00 34.62           C  
+ATOM     73  CD  LYS B   8       8.632 -31.043  12.266  1.00 50.89           C  
+ATOM     74  CE  LYS B   8       8.426 -32.287  11.361  1.00 66.53           C  
+ATOM     75  NZ  LYS B   8       7.918 -33.566  11.964  1.00 47.64           N  
+ATOM     76  N   LEU B   9       8.733 -26.297  14.679  1.00 27.17           N  
+ATOM     77  CA  LEU B   9       8.793 -24.931  15.236  1.00 27.53           C  
+ATOM     78  C   LEU B   9      10.211 -24.438  15.492  1.00 25.06           C  
+ATOM     79  O   LEU B   9      10.524 -23.291  15.273  1.00 28.85           O  
+ATOM     80  CB  LEU B   9       8.103 -24.824  16.583  1.00 24.83           C  
+ATOM     81  CG  LEU B   9       6.646 -24.476  16.547  1.00 31.43           C  
+ATOM     82  CD1 LEU B   9       6.143 -24.625  17.968  1.00 32.34           C  
+ATOM     83  CD2 LEU B   9       6.509 -23.030  16.099  1.00 25.23           C  
+ATOM     84  N   ALA B  10      11.031 -25.258  16.096  1.00 22.15           N  
+ATOM     85  CA  ALA B  10      12.415 -24.880  16.296  1.00 32.98           C  
+ATOM     86  C   ALA B  10      13.169 -24.630  14.960  1.00 38.54           C  
+ATOM     87  O   ALA B  10      13.990 -23.702  14.863  1.00 33.83           O  
+ATOM     88  CB  ALA B  10      13.081 -25.982  17.107  1.00 36.08           C  
+ATOM     89  N   ALA B  11      12.890 -25.419  13.894  1.00 44.66           N  
+ATOM     90  CA  ALA B  11      13.553 -25.207  12.580  1.00 26.43           C  
+ATOM     91  C   ALA B  11      13.063 -23.976  11.871  1.00 30.75           C  
+ATOM     92  O   ALA B  11      13.842 -23.366  11.147  1.00 38.12           O  
+ATOM     93  CB  ALA B  11      13.533 -26.395  11.629  1.00 18.55           C  
+ATOM     94  N   LEU B  12      11.785 -23.611  12.115  1.00 20.18           N  
+ATOM     95  CA  LEU B  12      11.240 -22.373  11.615  1.00 18.20           C  
+ATOM     96  C   LEU B  12      11.885 -21.187  12.257  1.00 22.17           C  
+ATOM     97  O   LEU B  12      12.120 -20.185  11.570  1.00 31.69           O  
+ATOM     98  CB  LEU B  12       9.720 -22.246  11.759  1.00 26.00           C  
+ATOM     99  CG  LEU B  12       9.050 -22.986  10.617  1.00 32.90           C  
+ATOM    100  CD1 LEU B  12       7.558 -23.038  10.850  1.00 30.50           C  
+ATOM    101  CD2 LEU B  12       9.419 -22.303   9.289  1.00 31.19           C  
+ATOM    102  N   GLU B  13      12.197 -21.355  13.570  1.00 32.35           N  
+ATOM    103  CA  GLU B  13      12.865 -20.358  14.433  1.00 27.61           C  
+ATOM    104  C   GLU B  13      14.262 -20.043  13.961  1.00 31.04           C  
+ATOM    105  O   GLU B  13      14.599 -18.905  13.646  1.00 29.44           O  
+ATOM    106  CB  GLU B  13      12.888 -20.780  15.891  1.00 22.65           C  
+ATOM    107  CG  GLU B  13      12.780 -19.542  16.783  1.00 46.07           C  
+ATOM    108  CD  GLU B  13      12.691 -19.912  18.253  1.00 52.27           C  
+ATOM    109  OE1 GLU B  13      12.720 -21.067  18.676  1.00 43.67           O  
+ATOM    110  OE2 GLU B  13      12.471 -18.860  19.008  1.00 50.57           O  
+ATOM    111  N   SER B  14      15.050 -21.085  13.768  1.00 26.38           N  
+ATOM    112  CA  SER B  14      16.392 -20.919  13.204  1.00 27.26           C  
+ATOM    113  C   SER B  14      16.392 -20.147  11.893  1.00 25.38           C  
+ATOM    114  O   SER B  14      17.193 -19.268  11.701  1.00 31.40           O  
+ATOM    115  CB  SER B  14      17.049 -22.275  13.069  1.00 34.11           C  
+ATOM    116  OG  SER B  14      17.201 -22.833  14.372  1.00 39.55           O  
+ATOM    117  N   LYS B  15      15.433 -20.430  11.014  1.00 28.62           N  
+ATOM    118  CA  LYS B  15      15.261 -19.695   9.771  1.00 27.37           C  
+ATOM    119  C   LYS B  15      14.929 -18.230   9.919  1.00 21.51           C  
+ATOM    120  O   LYS B  15      15.610 -17.396   9.354  1.00 28.58           O  
+ATOM    121  CB  LYS B  15      14.293 -20.354   8.816  1.00 25.34           C  
+ATOM    122  CG  LYS B  15      14.716 -21.792   8.580  1.00 30.31           C  
+ATOM    123  CD  LYS B  15      14.077 -22.306   7.319  1.00 39.71           C  
+ATOM    124  CE  LYS B  15      14.816 -23.479   6.753  1.00 40.55           C  
+ATOM    125  NZ  LYS B  15      14.512 -24.682   7.535  1.00 48.41           N  
+ATOM    126  N   LEU B  16      13.903 -17.885  10.659  1.00 17.80           N  
+ATOM    127  CA  LEU B  16      13.634 -16.486  10.955  1.00 18.75           C  
+ATOM    128  C   LEU B  16      14.821 -15.720  11.499  1.00 13.28           C  
+ATOM    129  O   LEU B  16      14.874 -14.506  11.317  1.00 24.92           O  
+ATOM    130  CB  LEU B  16      12.524 -16.289  12.031  1.00 26.94           C  
+ATOM    131  CG  LEU B  16      11.133 -16.377  11.483  1.00 31.63           C  
+ATOM    132  CD1 LEU B  16      10.433 -17.447  12.283  1.00 34.89           C  
+ATOM    133  CD2 LEU B  16      10.451 -15.022  11.652  1.00 48.21           C  
+ATOM    134  N   GLN B  17      15.559 -16.312  12.437  1.00 26.83           N  
+ATOM    135  CA  GLN B  17      16.740 -15.669  13.051  1.00 31.07           C  
+ATOM    136  C   GLN B  17      17.838 -15.341  12.034  1.00 28.25           C  
+ATOM    137  O   GLN B  17      18.525 -14.310  12.106  1.00 34.66           O  
+ATOM    138  CB  GLN B  17      17.333 -16.618  14.065  1.00 28.29           C  
+ATOM    139  CG  GLN B  17      16.343 -16.816  15.210  1.00 37.41           C  
+ATOM    140  CD  GLN B  17      16.825 -17.781  16.269  1.00 38.58           C  
+ATOM    141  OE1 GLN B  17      16.154 -17.963  17.297  1.00 45.05           O  
+ATOM    142  NE2 GLN B  17      17.961 -18.397  16.003  1.00 36.92           N  
+ATOM    143  N   ALA B  18      17.993 -16.258  11.073  1.00 28.82           N  
+ATOM    144  CA  ALA B  18      18.887 -16.079   9.958  1.00 24.76           C  
+ATOM    145  C   ALA B  18      18.408 -14.943   9.127  1.00 25.60           C  
+ATOM    146  O   ALA B  18      19.198 -14.153   8.649  1.00 29.79           O  
+ATOM    147  CB  ALA B  18      18.896 -17.310   9.073  1.00 31.70           C  
+ATOM    148  N   LEU B  19      17.103 -14.882   8.954  1.00 20.86           N  
+ATOM    149  CA  LEU B  19      16.500 -13.807   8.196  1.00 20.69           C  
+ATOM    150  C   LEU B  19      16.624 -12.541   8.991  1.00 15.47           C  
+ATOM    151  O   LEU B  19      16.978 -11.498   8.534  1.00 28.40           O  
+ATOM    152  CB  LEU B  19      15.034 -14.146   7.802  1.00 24.04           C  
+ATOM    153  CG  LEU B  19      14.433 -13.498   6.559  1.00 30.39           C  
+ATOM    154  CD1 LEU B  19      14.238 -11.989   6.686  1.00 26.99           C  
+ATOM    155  CD2 LEU B  19      15.346 -13.798   5.386  1.00 36.84           C  
+ATOM    156  N   GLU B  20      16.463 -12.592  10.261  1.00 21.16           N  
+ATOM    157  CA  GLU B  20      16.569 -11.353  11.023  1.00 28.30           C  
+ATOM    158  C   GLU B  20      18.015 -10.847  11.131  1.00 28.17           C  
+ATOM    159  O   GLU B  20      18.278  -9.652  11.221  1.00 27.48           O  
+ATOM    160  CB  GLU B  20      15.912 -11.554  12.387  1.00 25.25           C  
+ATOM    161  CG  GLU B  20      16.421 -10.615  13.446  1.00 21.81           C  
+ATOM    162  CD  GLU B  20      15.963 -11.092  14.780  1.00 31.72           C  
+ATOM    163  OE1 GLU B  20      15.718 -12.262  15.085  1.00 31.25           O  
+ATOM    164  OE2 GLU B  20      15.855 -10.069  15.550  1.00 31.01           O  
+ATOM    165  N   LYS B  21      18.969 -11.740  10.953  1.00 21.90           N  
+ATOM    166  CA  LYS B  21      20.374 -11.321  10.926  1.00 27.52           C  
+ATOM    167  C   LYS B  21      20.763 -10.527   9.664  1.00 20.66           C  
+ATOM    168  O   LYS B  21      21.394  -9.426   9.730  1.00 16.60           O  
+ATOM    169  CB  LYS B  21      21.209 -12.556  11.084  1.00 21.31           C  
+ATOM    170  CG  LYS B  21      21.296 -12.941  12.524  1.00 20.50           C  
+ATOM    171  CD  LYS B  21      22.495 -13.812  12.692  1.00 26.69           C  
+ATOM    172  CE  LYS B  21      22.116 -15.190  13.063  1.00 30.76           C  
+ATOM    173  NZ  LYS B  21      21.498 -15.109  14.383  1.00 34.93           N  
+ATOM    174  N   LYS B  22      20.253 -11.058   8.537  1.00 23.78           N  
+ATOM    175  CA  LYS B  22      20.305 -10.448   7.203  1.00 24.10           C  
+ATOM    176  C   LYS B  22      19.744  -9.033   7.246  1.00 24.85           C  
+ATOM    177  O   LYS B  22      20.367  -8.071   6.871  1.00 30.59           O  
+ATOM    178  CB  LYS B  22      19.441 -11.238   6.237  1.00 34.68           C  
+ATOM    179  CG  LYS B  22      20.161 -11.803   5.015  1.00 35.80           C  
+ATOM    180  CD  LYS B  22      21.329 -12.689   5.383  1.00 43.05           C  
+ATOM    181  CE  LYS B  22      21.857 -13.509   4.212  1.00 41.41           C  
+ATOM    182  NZ  LYS B  22      23.320 -13.656   4.258  1.00 48.00           N  
+ATOM    183  N   LEU B  23      18.521  -8.891   7.687  1.00 22.91           N  
+ATOM    184  CA  LEU B  23      17.904  -7.588   7.839  1.00 19.08           C  
+ATOM    185  C   LEU B  23      18.660  -6.630   8.756  1.00 25.94           C  
+ATOM    186  O   LEU B  23      18.665  -5.451   8.440  1.00 29.73           O  
+ATOM    187  CB  LEU B  23      16.406  -7.681   8.274  1.00 25.51           C  
+ATOM    188  CG  LEU B  23      15.439  -8.364   7.288  1.00 33.51           C  
+ATOM    189  CD1 LEU B  23      14.005  -8.389   7.861  1.00 27.13           C  
+ATOM    190  CD2 LEU B  23      15.479  -7.659   5.938  1.00 26.24           C  
+ATOM    191  N   GLU B  24      19.131  -7.068   9.955  1.00 22.48           N  
+ATOM    192  CA  GLU B  24      19.852  -6.184  10.876  1.00 19.71           C  
+ATOM    193  C   GLU B  24      21.104  -5.708  10.233  1.00 28.51           C  
+ATOM    194  O   GLU B  24      21.395  -4.528  10.321  1.00 25.28           O  
+ATOM    195  CB  GLU B  24      20.304  -6.855  12.180  1.00 29.27           C  
+ATOM    196  CG  GLU B  24      19.360  -6.760  13.393  1.00 39.25           C  
+ATOM    197  CD  GLU B  24      19.287  -5.375  13.934  1.00 44.76           C  
+ATOM    198  OE1 GLU B  24      20.271  -4.747  14.231  1.00 44.98           O  
+ATOM    199  OE2 GLU B  24      18.071  -4.900  13.975  1.00 47.65           O  
+ATOM    200  N   ALA B  25      21.792  -6.672   9.564  1.00 34.34           N  
+ATOM    201  CA  ALA B  25      22.981  -6.450   8.707  1.00 36.41           C  
+ATOM    202  C   ALA B  25      22.842  -5.368   7.602  1.00 43.35           C  
+ATOM    203  O   ALA B  25      23.615  -4.414   7.575  1.00 33.46           O  
+ATOM    204  CB  ALA B  25      23.472  -7.758   8.131  1.00 31.45           C  
+ATOM    205  N   LEU B  26      21.854  -5.460   6.682  1.00 34.67           N  
+ATOM    206  CA  LEU B  26      21.671  -4.390   5.709  1.00 29.56           C  
+ATOM    207  C   LEU B  26      21.278  -3.130   6.451  1.00 34.95           C  
+ATOM    208  O   LEU B  26      21.918  -2.106   6.371  1.00 44.51           O  
+ATOM    209  CB  LEU B  26      20.634  -4.682   4.622  1.00 28.17           C  
+ATOM    210  CG  LEU B  26      20.571  -6.141   4.190  1.00 28.74           C  
+ATOM    211  CD1 LEU B  26      19.319  -6.377   3.336  1.00 36.06           C  
+ATOM    212  CD2 LEU B  26      21.758  -6.478   3.335  1.00 20.71           C  
+ATOM    213  N   GLU B  27      20.357  -3.280   7.369  1.00 51.41           N  
+ATOM    214  CA  GLU B  27      19.840  -2.173   8.148  1.00 45.22           C  
+ATOM    215  C   GLU B  27      20.866  -1.501   9.076  1.00 53.13           C  
+ATOM    216  O   GLU B  27      20.804  -0.295   9.334  1.00 48.91           O  
+ATOM    217  CB  GLU B  27      18.622  -2.698   8.925  1.00 57.63           C  
+ATOM    218  CG  GLU B  27      17.395  -1.800   8.936  1.00 39.42           C  
+ATOM    219  CD  GLU B  27      17.529  -0.866  10.071  1.00 58.76           C  
+ATOM    220  OE1 GLU B  27      18.506  -1.247  10.860  1.00 77.00           O  
+ATOM    221  OE2 GLU B  27      16.940   0.192  10.152  1.00 59.89           O  
+ATOM    222  N   HIS B  28      21.853  -2.253   9.544  1.00 77.09           N  
+ATOM    223  CA  HIS B  28      22.749  -1.707  10.561  1.00 82.00           C  
+ATOM    224  C   HIS B  28      24.255  -1.785  10.379  1.00 82.74           C  
+ATOM    225  O   HIS B  28      24.941  -1.302  11.271  1.00 56.97           O  
+ATOM    226  CB  HIS B  28      22.429  -2.235  11.971  1.00 44.31           C  
+ATOM    227  CG  HIS B  28      21.414  -1.423  12.660  1.00 46.70           C  
+ATOM    228  ND1 HIS B  28      20.219  -1.978  13.122  1.00 50.40           N  
+ATOM    229  CD2 HIS B  28      21.468  -0.101  13.021  1.00 38.08           C  
+ATOM    230  CE1 HIS B  28      19.590  -0.984  13.763  1.00 57.80           C  
+ATOM    231  NE2 HIS B  28      20.303   0.155  13.721  1.00 51.58           N  
+ATOM    232  N   GLY B  29      24.788  -2.535   9.416  1.00 35.33           N  
+ATOM    233  CA  GLY B  29      26.228  -2.520   9.286  1.00 41.28           C  
+ATOM    234  C   GLY B  29      26.850  -3.674   8.553  1.00 41.57           C  
+ATOM    235  O   GLY B  29      27.920  -4.058   9.049  1.00 65.26           O  
+HETATM  236  N   NH2 B  30      26.288  -4.157   7.436  1.00 55.78           N  
+HETATM  237  O   HOH A 301      -3.583 -26.669  30.513  1.00 35.09           O  
+HETATM  238  O   HOH A 302      -1.094 -19.448  18.530  1.00 42.71           O  
+HETATM  239  O   HOH A 304       6.628  -6.070   1.461  1.00 34.79           O  
+HETATM  240  O   HOH A 305      11.589  -5.099  13.583  1.00 38.93           O  
+HETATM  241  O   HOH A 314      17.587   0.956   0.899  1.00 42.20           O  
+HETATM  242  O   HOH A 315      10.007   3.680   8.759  1.00 43.00           O  
+HETATM  243  O   HOH A 318       3.798 -32.613  30.939  1.00 36.25           O  
+HETATM  244  O   HOH A 319       2.570  -6.529  12.313  1.00 31.00           O  
+HETATM  245  O   HOH A 321       4.528  -6.043  13.864  1.00 38.40           O  
+HETATM  246  O   HOH A 328      16.997   7.447   0.389  1.00 47.16           O  
+HETATM  247  O   HOH A 329      11.856   3.907   5.639  1.00 52.19           O  
+HETATM  248  O   HOH B 303      10.345 -34.698  13.457  1.00 58.92           O  
+HETATM  249  O   HOH B 306       9.106 -35.951  15.743  1.00 62.30           O  
+HETATM  250  O   HOH B 307      11.766 -25.939   8.306  1.00 60.52           O  
+HETATM  251  O   HOH B 308       3.835 -35.225  12.256  1.00 39.01           O  
+HETATM  252  O   HOH B 309      17.336 -25.796  14.170  1.00 52.23           O  
+HETATM  253  O   HOH B 310      16.852 -20.630  16.368  1.00 45.05           O  
+HETATM  254  O   HOH B 312      22.108 -14.931   8.371  1.00 25.64           O  
+HETATM  255  O   HOH B 313      24.840 -17.283  16.641  1.00 44.23           O  
+HETATM  256  O   HOH B 320      13.382 -30.905  19.866  1.00 47.18           O  
+HETATM  257  O   HOH B 323      19.393  -3.151  15.632  1.00 47.48           O  
+HETATM  258  O   HOH B 324      21.424   2.284  15.430  1.00 54.25           O  
+HETATM  259  O   HOH B 327      21.766 -16.852   3.910  1.00 47.72           O  
+HETATM  260  O   HOH C 311      10.610 -26.522   2.381  1.00 49.31           O  
+HETATM  261  O   HOH C 316      -6.210 -28.144  10.157  1.00 50.34           O  
+HETATM  262  O   HOH C 317      -1.174 -27.935   7.451  1.00 42.64           O  
+HETATM  263  O   HOH C 322      16.843 -19.635   4.817  1.00 58.38           O  
+HETATM  264  O   HOH C 325      15.638 -15.286  -4.544  1.00 37.08           O  
+HETATM  265  O   HOH C 326      15.320 -12.313  -6.558  1.00 39.48           O  
+HETATM  266  O   HOH C 330     -10.967 -26.696  22.061  1.00 55.19           O  
+HETATM  267  O   HOH C 331      15.168 -15.385  -1.954  1.00 42.87           O  
+HETATM  268  O   HOH C 332       6.886 -18.636  -2.175  1.00 49.05           O  
+HETATM  269  O   HOH C 333     -12.249 -22.725  17.752  1.00 32.86           O  
+CONECT    1    2    3    4
+CONECT    4    5
+CONECT    5    6    8
+CONECT    6    7    7   13
+CONECT    8    9
+CONECT    9   10
+CONECT   10   11   11   12
+CONECT   13   14
+CONECT   14   15   17
+CONECT   15   16   16   27
+CONECT   17   18
+CONECT   18   19   19   20
+CONECT   19   21
+CONECT   20   22   22   23
+CONECT   21   22
+CONECT   22   24
+CONECT   23   25   25
+CONECT   24   26   26
+CONECT   25   26
+CONECT   27   28
+CONECT   28   29   31
+CONECT   29   30   30   36
+CONECT   31   32
+CONECT   32   33
+CONECT   33   34   34   35
+CONECT   36   37
+CONECT   37   38   40
+CONECT   38   39   39   41
+CONECT   41   42
+CONECT   42   43   45
+CONECT   43   44   44   49
+CONECT   45   46
+CONECT   46   47   48
+CONECT   49   50
+CONECT   50   51   53
+CONECT   51   52   52   58
+CONECT   53   54
+CONECT   54   55
+CONECT   55   56   56   57
+CONECT   58   59
+CONECT   59   60   62
+CONECT   60   61   61   67
+CONECT   62   63
+CONECT   63   64
+CONECT   64   65
+CONECT   65   66
+CONECT   67   68
+CONECT   68   69   71
+CONECT   69   70   70   76
+CONECT   71   72
+CONECT   72   73
+CONECT   73   74
+CONECT   74   75
+CONECT   76   77
+CONECT   77   78   80
+CONECT   78   79   79   84
+CONECT   80   81
+CONECT   81   82   83
+CONECT   84   85
+CONECT   85   86   88
+CONECT   86   87   87   89
+CONECT   89   90
+CONECT   90   91   93
+CONECT   91   92   92   94
+CONECT   94   95
+CONECT   95   96   98
+CONECT   96   97   97  102
+CONECT   98   99
+CONECT   99  100  101
+CONECT  102  103
+CONECT  103  104  106
+CONECT  104  105  105  111
+CONECT  106  107
+CONECT  107  108
+CONECT  108  109  109  110
+CONECT  111  112
+CONECT  112  113  115
+CONECT  113  114  114  117
+CONECT  115  116
+CONECT  117  118
+CONECT  118  119  121
+CONECT  119  120  120  126
+CONECT  121  122
+CONECT  122  123
+CONECT  123  124
+CONECT  124  125
+CONECT  126  127
+CONECT  127  128  130
+CONECT  128  129  129  134
+CONECT  130  131
+CONECT  131  132  133
+CONECT  134  135
+CONECT  135  136  138
+CONECT  136  137  137  143
+CONECT  138  139
+CONECT  139  140
+CONECT  140  141  141  142
+CONECT  143  144
+CONECT  144  145  147
+CONECT  145  146  146  148
+CONECT  148  149
+CONECT  149  150  152
+CONECT  150  151  151  156
+CONECT  152  153
+CONECT  153  154  155
+CONECT  156  157
+CONECT  157  158  160
+CONECT  158  159  159  165
+CONECT  160  161
+CONECT  161  162
+CONECT  162  163  163  164
+CONECT  165  166
+CONECT  166  167  169
+CONECT  167  168  168  174
+CONECT  169  170
+CONECT  170  171
+CONECT  171  172
+CONECT  172  173
+CONECT  174  175
+CONECT  175  176  178
+CONECT  176  177  177  183
+CONECT  178  179
+CONECT  179  180
+CONECT  180  181
+CONECT  181  182
+CONECT  183  184
+CONECT  184  185  187
+CONECT  185  186  186  191
+CONECT  187  188
+CONECT  188  189  190
+CONECT  191  192
+CONECT  192  193  195
+CONECT  193  194  194  200
+CONECT  195  196
+CONECT  196  197
+CONECT  197  198  198  199
+CONECT  200  201
+CONECT  201  202  204
+CONECT  202  203  203  205
+CONECT  205  206
+CONECT  206  207  209
+CONECT  207  208  208  213
+CONECT  209  210
+CONECT  210  211  212
+CONECT  213  214
+CONECT  214  215  217
+CONECT  215  216  216  222
+CONECT  217  218
+CONECT  218  219
+CONECT  219  220  220  221
+CONECT  222  223
+CONECT  223  224  226
+CONECT  224  225  225  232
+CONECT  226  227
+CONECT  227  228  229  229
+CONECT  228  230  230
+CONECT  229  231
+CONECT  230  231
+CONECT  232  233
+CONECT  233  234
+CONECT  234  235  235  236
+END