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Shortcut: ADAPTIVE_PATH

Module mapping
Description Usage
Compute path collective variables that adapt to the lowest free energy path connecting states A and B. used in 0 tutorialsused in 0 eggs
output value type
the position along and from the adaptive path scalar

Details and examples

Compute path collective variables that adapt to the lowest free energy path connecting states A and B.

This shortcut can be used to implement the method discussed in the second paper cited below. This method allows you to run a simulation with PATH collective variables that forces the system to transition between state A and state B. If you run with ADAPTIVE_PATH rather than PATH the CV adapts as the simulation progresses and should find the lowest free energy path that connects the two states.

The Path Collective Variables developed by Branduardi that are described in the first paper cited below allow one to compute the progress along a high-dimensional path and the distance from the high-dimensional path. Instad of computing progress along the path () using Branduardi's method we use the expressions that are used in GEOMETRIC_PATH and that are introduced in the second paper that is cited below. The progress along the path is is thus computed using:

In this expression and are the vectors connecting the current position to the closest and second closest node of the path, respectfully and and are the projections of the closest and second closest frames of the path. , meanwhile, is the vector connecting the closest frame to the second closest frame. The distance from the path, is calculated using:

Notice that these are the definitions of and from the GEOMETRIC_PATH. The reason for this is that the adaptive path method implemented in this action was inspired by the work of Diaz and Ensing that was introduced in the second paper cited below. To learn more about how the path is adapted we strongly recommend reading this paper.

The example input below shows how to use the adaptive path.

Click on the labels of the actions for more information on what each action computes
tested on2.11
#SETTINGS INPUTFILES=regtest/mapping/rt-adapt/mypath.pdb
d1: DISTANCECalculate the distance/s between pairs of atoms. More details ATOMSthe pair of atom that we are calculating the distance between=1,2 COMPONENTS calculate the x, y and z components of the distance separately and store them as label
pp: ADAPTIVE_PATHCompute path collective variables that adapt to the lowest free energy path connecting states A and B. This action is a shortcut and it has hidden defaults. More details ...
   ARGthe list of arguments you would like to use in your definition of the path=d1.x,d1.y UPDATEthe frequency with which the path should be updated=50 FIXEDthe positions in the list of input frames of the two path nodes whose positions remain fixed during the path optimization=5,15
   WFILEfile on which to write out the path=out-path.pdb WSTRIDE frequency with which to write out the path=50
   REFERENCEa pdb file containing the set of reference configurations=
regtest/mapping/rt-adapt/mypath.pdb
Click here to see an extract from this file.
×

FILE: regtest/mapping/rt-adapt/mypath.pdb

REMARK d1.x=1.12000000000000000000 d1.y=-.60000000000000000000 path=-0.4
END
REMARK d1.x=.99000000000000000000 d1.y=-.45000000000000000000 path=-0.3 
END
REMARK d1.x=.86000000000000000000 d1.y=-.30000000000000000000 path=-0.2 
END
REMARK d1.x=.73000000000000000000 d1.y=-.15000000000000000000 path=-0.1
END
REMARK d1.x=.60000000000000000000 d1.y=0 path=0
END
REMARK d1.x=.47000000000000000000 d1.y=.15000000000000000000 path=0.1
END
REMARK d1.x=.34000000000000000000 d1.y=.30000000000000000000 path=0.2
END
REMARK d1.x=.21000000000000000000 d1.y=.45000000000000000000 path=0.3
END
REMARK d1.x=.08000000000000000000 d1.y=.60000000000000000000 path=0.4 
END
REMARK d1.x=-.05000000000000000000 d1.y=.75000000000000000000 path=0.5
END
REMARK d1.x=-.18000000000000000000 d1.y=.90000000000000000000 path=0.6
END
REMARK d1.x=-.31000000000000000000 d1.y=1.05000000000000000000 path=0.7 
END
REMARK d1.x=-.44000000000000000000 d1.y=1.20000000000000000000 path=0.8
END
REMARK d1.x=-.57000000000000000000 d1.y=1.35000000000000000000 path=0.9
END
REMARK d1.x=-.70000000000000000000 d1.y=1.50000000000000000000 path=1.0
END
REMARK d1.x=-.83000000000000000000 d1.y=1.65000000000000000000 path=1.1
END
REMARK d1.x=-.96000000000000000000 d1.y=1.80000000000000000000 path=1.2
END
REMARK d1.x=-1.09000000000000000000 d1.y=1.95000000000000000000 path=1.3
END
REMARK d1.x=-1.22000000000000000000 d1.y=2.10000000000000000000 path=1.4
END
REMARK d1.x=-1.35000000000000000000 d1.y=2.25000000000000000000 path=1.5
END
PROPERTYread in path coordinates by finding option with this label in remark of pdb frames=path ...
PRINTPrint quantities to a file. More details ARGthe labels of the values that you would like to print to the file=d1.x,d1.y,pp.* FILEthe name of the file on which to output these quantities=colvar

The curved path here is defined using a series of points in a two dimensional space. Furthermore, the coordinates that these points should be projected at on the low dimensional path (the values in the equation for above) are specified in the path property of the input pdb file.

If you expand the shortcuts in the input above you can see how we use a GEOMETRIC_PATH shortcut to calculate our position along the path and distance from the path. In addition, we also collect information on the average displacement from the path using an AVERAGE_PATH_DISPLACEMENT so that we can update the path every step. During these update steps the reference points on the path are shifted by the values that are stored in the AVERAGE_PATH_DISPLACEMENT action. We then use the REPARAMETERIZE_PATH to ensure that the new set of reference points on the path are all equally spaced. After the adaption steps the new reference points are used when calculating are position on and distance from the reference path.

The input below illustrates how to the positions of atoms to define the adaptive path:

Click on the labels of the actions for more information on what each action computes
tested on2.11
##SETTINGS INPUTFILES=regtest/trajectories/path_msd/all.pdb
p1b: ADAPTIVE_PATHCompute path collective variables that adapt to the lowest free energy path connecting states A and B. This action is a shortcut and it has hidden defaults. More details REFERENCEa pdb file containing the set of reference configurations=
regtest/trajectories/path_msd/all.pdb
Click here to see an extract from this file.
×

FILE: regtest/trajectories/path_msd/all.pdb

ATOM      1  CL  ALA     1      -3.171   0.295   2.045  1.00  1.00
ATOM      5  CLP ALA     1      -1.819  -0.143   1.679  1.00  1.00
ATOM      6  OL  ALA     1      -1.177  -0.889   2.401  1.00  1.00
ATOM      7  NL  ALA     1      -1.313   0.341   0.529  1.00  1.00
ATOM      8  HL  ALA     1      -1.845   0.961  -0.011  1.00  1.00
ATOM      9  CA  ALA     1      -0.003  -0.019   0.021  1.00  1.00
ATOM     10  HA  ALA     1       0.205  -1.051   0.259  1.00  1.00
ATOM     11  CB  ALA     1       0.009   0.135  -1.509  1.00  1.00
ATOM     15  CRP ALA     1       1.121   0.799   0.663  1.00  1.00
ATOM     16  OR  ALA     1       1.723   1.669   0.043  1.00  1.00
ATOM     17  NR  ALA     1       1.423   0.519   1.941  1.00  1.00
ATOM     18  HR  ALA     1       0.873  -0.161   2.413  1.00  1.00
ATOM     19  CR  ALA     1       2.477   1.187   2.675  1.00  1.00
END
FIXED
ATOM      1  CL  ALA     1      -3.175   0.365   2.024  1.00  1.00
ATOM      5  CLP ALA     1      -1.814  -0.106   1.685  1.00  1.00
ATOM      6  OL  ALA     1      -1.201  -0.849   2.425  1.00  1.00
ATOM      7  NL  ALA     1      -1.296   0.337   0.534  1.00  1.00
ATOM      8  HL  ALA     1      -1.807   0.951  -0.044  1.00  1.00
ATOM      9  CA  ALA     1       0.009  -0.067   0.033  1.00  1.00
ATOM     10  HA  ALA     1       0.175  -1.105   0.283  1.00  1.00
ATOM     11  CB  ALA     1       0.027   0.046  -1.501  1.00  1.00
ATOM     15  CRP ALA     1       1.149   0.725   0.654  1.00  1.00
ATOM     16  OR  ALA     1       1.835   1.491  -0.011  1.00  1.00
ATOM     17  NR  ALA     1       1.380   0.537   1.968  1.00  1.00
ATOM     18  HR  ALA     1       0.764  -0.060   2.461  1.00  1.00
ATOM     19  CR  ALA     1       2.431   1.195   2.683  1.00  1.00
END
ATOM      1  CL  ALA     1      -2.990   0.383   2.277  1.00  1.00
ATOM      5  CLP ALA     1      -1.664  -0.085   1.831  1.00  1.00
ATOM      6  OL  ALA     1      -0.987  -0.835   2.533  1.00  1.00
ATOM      7  NL  ALA     1      -1.227   0.364   0.646  1.00  1.00
ATOM      8  HL  ALA     1      -1.798   0.982   0.124  1.00  1.00
ATOM      9  CA  ALA     1       0.026  -0.028   0.044  1.00  1.00
ATOM     10  HA  ALA     1       0.224  -1.060   0.284  1.00  1.00
ATOM     11  CB  ALA     1      -0.076   0.107  -1.483  1.00  1.00
ATOM     15  CRP ALA     1       1.217   0.776   0.577  1.00  1.00
ATOM     16  OR  ALA     1       1.900   1.463  -0.158  1.00  1.00
ATOM     17  NR  ALA     1       1.494   0.666   1.888  1.00  1.00
ATOM     18  HR  ALA     1       0.882   0.122   2.437  1.00  1.00
ATOM     19  CR  ALA     1       2.580   1.341   2.529  1.00  1.00
END
ATOM      1  CL  ALA     1      -3.006   0.350   2.252  1.00  1.00
ATOM      5  CLP ALA     1      -1.680  -0.112   1.826  1.00  1.00
ATOM      6  OL  ALA     1      -1.025  -0.896   2.508  1.00  1.00
ATOM      7  NL  ALA     1      -1.220   0.368   0.654  1.00  1.00
ATOM      8  HL  ALA     1      -1.771   1.013   0.137  1.00  1.00
ATOM      9  CA  ALA     1       0.040  -0.029   0.062  1.00  1.00
ATOM     10  HA  ALA     1       0.210  -1.076   0.277  1.00  1.00
ATOM     11  CB  ALA     1      -0.066   0.148  -1.465  1.00  1.00
ATOM     15  CRP ALA     1       1.241   0.738   0.605  1.00  1.00
ATOM     16  OR  ALA     1       1.986   1.347  -0.125  1.00  1.00
ATOM     17  NR  ALA     1       1.446   0.694   1.940  1.00  1.00
ATOM     18  HR  ALA     1       0.796   0.210   2.481  1.00  1.00
ATOM     19  CR  ALA     1       2.544   1.350   2.582  1.00  1.00
END
ATOM      1  CL  ALA     1      -3.002   0.343   2.271  1.00  1.00
ATOM      5  CLP ALA     1      -1.672  -0.125   1.828  1.00  1.00
ATOM      6  OL  ALA     1      -1.028  -0.942   2.486  1.00  1.00
ATOM      7  NL  ALA     1      -1.213   0.373   0.670  1.00  1.00
ATOM      8  HL  ALA     1      -1.752   1.033   0.169  1.00  1.00
ATOM      9  CA  ALA     1       0.041  -0.032   0.055  1.00  1.00
ATOM     10  HA  ALA     1       0.201  -1.079   0.245  1.00  1.00
ATOM     11  CB  ALA     1      -0.079   0.194  -1.466  1.00  1.00
ATOM     15  CRP ALA     1       1.257   0.720   0.601  1.00  1.00
ATOM     16  OR  ALA     1       2.057   1.240  -0.140  1.00  1.00
ATOM     17  NR  ALA     1       1.422   0.730   1.942  1.00  1.00
ATOM     18  HR  ALA     1       0.740   0.303   2.500  1.00  1.00
ATOM     19  CR  ALA     1       2.528   1.373   2.598  1.00  1.00
END
ATOM      1  CL  ALA     1      -3.144   1.457   1.417  1.00  1.00
ATOM      5  CLP ALA     1      -1.943   0.587   1.450  1.00  1.00
ATOM      6  OL  ALA     1      -1.588   0.028   2.480  1.00  1.00
ATOM      7  NL  ALA     1      -1.281   0.449   0.306  1.00  1.00
ATOM      8  HL  ALA     1      -1.578   0.914  -0.520  1.00  1.00
ATOM      9  CA  ALA     1      -0.132  -0.428   0.139  1.00  1.00
ATOM     10  HA  ALA     1      -0.264  -1.291   0.758  1.00  1.00
ATOM     11  CB  ALA     1      -0.066  -0.855  -1.329  1.00  1.00
ATOM     15  CRP ALA     1       1.193   0.220   0.554  1.00  1.00
ATOM     16  OR  ALA     1       2.195   0.098  -0.140  1.00  1.00
ATOM     17  NR  ALA     1       1.224   0.872   1.737  1.00  1.00
ATOM     18  HR  ALA     1       0.399   0.943   2.273  1.00  1.00
ATOM     19  CR  ALA     1       2.413   1.511   2.254  1.00  1.00
END
ATOM      1  CL  ALA     1      -3.140   1.441   1.453  1.00  1.00
ATOM      5  CLP ALA     1      -1.944   0.576   1.465  1.00  1.00
ATOM      6  OL  ALA     1      -1.587  -0.018   2.487  1.00  1.00
ATOM      7  NL  ALA     1      -1.274   0.465   0.322  1.00  1.00
ATOM      8  HL  ALA     1      -1.571   0.957  -0.486  1.00  1.00
ATOM      9  CA  ALA     1      -0.124  -0.418   0.135  1.00  1.00
ATOM     10  HA  ALA     1      -0.274  -1.304   0.729  1.00  1.00
ATOM     11  CB  ALA     1      -0.063  -0.813  -1.347  1.00  1.00
ATOM     15  CRP ALA     1       1.201   0.199   0.572  1.00  1.00
ATOM     16  OR  ALA     1       2.227   0.007  -0.072  1.00  1.00
ATOM     17  NR  ALA     1       1.215   0.910   1.709  1.00  1.00
ATOM     18  HR  ALA     1       0.369   1.020   2.200  1.00  1.00
ATOM     19  CR  ALA     1       2.393   1.536   2.237  1.00  1.00
END
ATOM      1  CL  ALA     1      -3.140   1.420   1.442  1.00  1.00
ATOM      5  CLP ALA     1      -1.948   0.546   1.448  1.00  1.00
ATOM      6  OL  ALA     1      -1.618  -0.065   2.460  1.00  1.00
ATOM      7  NL  ALA     1      -1.255   0.469   0.311  1.00  1.00
ATOM      8  HL  ALA     1      -1.538   0.979  -0.490  1.00  1.00
ATOM      9  CA  ALA     1      -0.107  -0.412   0.124  1.00  1.00
ATOM     10  HA  ALA     1      -0.257  -1.312   0.685  1.00  1.00
ATOM     11  CB  ALA     1      -0.028  -0.770  -1.375  1.00  1.00
ATOM     15  CRP ALA     1       1.217   0.186   0.600  1.00  1.00
ATOM     16  OR  ALA     1       2.269  -0.069   0.026  1.00  1.00
ATOM     17  NR  ALA     1       1.193   0.966   1.687  1.00  1.00
ATOM     18  HR  ALA     1       0.333   1.114   2.120  1.00  1.00
ATOM     19  CR  ALA     1       2.377   1.589   2.240  1.00  1.00
END
ATOM      1  CL  ALA     1      -3.110   1.698   0.880  1.00  1.00
ATOM      5  CLP ALA     1      -2.021   0.734   1.142  1.00  1.00
ATOM      6  OL  ALA     1      -1.859   0.257   2.258  1.00  1.00
ATOM      7  NL  ALA     1      -1.229   0.414   0.114  1.00  1.00
ATOM      8  HL  ALA     1      -1.371   0.826  -0.771  1.00  1.00
ATOM      9  CA  ALA     1      -0.173  -0.593   0.188  1.00  1.00
ATOM     10  HA  ALA     1      -0.481  -1.374   0.851  1.00  1.00
ATOM     11  CB  ALA     1       0.011  -1.180  -1.220  1.00  1.00
ATOM     15  CRP ALA     1       1.163  -0.060   0.716  1.00  1.00
ATOM     16  OR  ALA     1       2.227  -0.564   0.393  1.00  1.00
ATOM     17  NR  ALA     1       1.127   0.960   1.594  1.00  1.00
ATOM     18  HR  ALA     1       0.234   1.295   1.847  1.00  1.00
ATOM     19  CR  ALA     1       2.303   1.549   2.172  1.00  1.00
END
ATOM      1  CL  ALA     1      -3.139   1.652   0.924  1.00  1.00
ATOM      5  CLP ALA     1      -2.039   0.698   1.169  1.00  1.00
ATOM      6  OL  ALA     1      -1.868   0.201   2.278  1.00  1.00
ATOM      7  NL  ALA     1      -1.239   0.411   0.139  1.00  1.00
ATOM      8  HL  ALA     1      -1.385   0.842  -0.737  1.00  1.00
ATOM      9  CA  ALA     1      -0.173  -0.574   0.193  1.00  1.00
ATOM     10  HA  ALA     1      -0.477  -1.381   0.833  1.00  1.00
ATOM     11  CB  ALA     1       0.029  -1.142  -1.231  1.00  1.00
ATOM     15  CRP ALA     1       1.162  -0.048   0.731  1.00  1.00
ATOM     16  OR  ALA     1       2.220  -0.597   0.472  1.00  1.00
ATOM     17  NR  ALA     1       1.122   1.024   1.537  1.00  1.00
ATOM     18  HR  ALA     1       0.233   1.395   1.752  1.00  1.00
ATOM     19  CR  ALA     1       2.300   1.629   2.102  1.00  1.00
END
ATOM      1  CL  ALA     1      -3.706   1.088   0.468  1.00  1.00
ATOM      5  CLP ALA     1      -2.458   0.598   1.082  1.00  1.00
ATOM      6  OL  ALA     1      -2.390   0.404   2.277  1.00  1.00
ATOM      7  NL  ALA     1      -1.427   0.382   0.258  1.00  1.00
ATOM      8  HL  ALA     1      -1.513   0.559  -0.713  1.00  1.00
ATOM      9  CA  ALA     1      -0.157  -0.192   0.685  1.00  1.00
ATOM     10  HA  ALA     1      -0.343  -0.912   1.470  1.00  1.00
ATOM     11  CB  ALA     1       0.462  -0.936  -0.512  1.00  1.00
ATOM     15  CRP ALA     1       0.840   0.814   1.241  1.00  1.00
ATOM     16  OR  ALA     1       2.034   0.549   1.354  1.00  1.00
ATOM     17  NR  ALA     1       0.368   2.017   1.650  1.00  1.00
ATOM     18  HR  ALA     1      -0.613   2.169   1.589  1.00  1.00
ATOM     19  CR  ALA     1       1.215   3.044   2.195  1.00  1.00
END
ATOM      1  CL  ALA     1      -3.699   1.173   0.487  1.00  1.00
ATOM      5  CLP ALA     1      -2.464   0.631   1.079  1.00  1.00
ATOM      6  OL  ALA     1      -2.402   0.386   2.275  1.00  1.00
ATOM      7  NL  ALA     1      -1.434   0.437   0.260  1.00  1.00
ATOM      8  HL  ALA     1      -1.516   0.652  -0.701  1.00  1.00
ATOM      9  CA  ALA     1      -0.174  -0.174   0.667  1.00  1.00
ATOM     10  HA  ALA     1      -0.377  -0.924   1.411  1.00  1.00
ATOM     11  CB  ALA     1       0.451  -0.859  -0.570  1.00  1.00
ATOM     15  CRP ALA     1       0.839   0.801   1.280  1.00  1.00
ATOM     16  OR  ALA     1       1.999   0.474   1.468  1.00  1.00
ATOM     17  NR  ALA     1       0.404   2.024   1.627  1.00  1.00
ATOM     18  HR  ALA     1      -0.565   2.225   1.505  1.00  1.00
ATOM     19  CR  ALA     1       1.262   3.025   2.214  1.00  1.00
END
ATOM      1  CL  ALA     1      -3.653   0.990   1.121  1.00  1.00
ATOM      5  CLP ALA     1      -2.321   0.364   1.249  1.00  1.00
ATOM      6  OL  ALA     1      -2.006  -0.222   2.265  1.00  1.00
ATOM      7  NL  ALA     1      -1.498   0.501   0.205  1.00  1.00
ATOM      8  HL  ALA     1      -1.794   0.978  -0.603  1.00  1.00
ATOM      9  CA  ALA     1      -0.190  -0.127   0.128  1.00  1.00
ATOM     10  HA  ALA     1      -0.216  -1.086   0.627  1.00  1.00
ATOM     11  CB  ALA     1       0.159  -0.359  -1.359  1.00  1.00
ATOM     15  CRP ALA     1       0.933   0.668   0.793  1.00  1.00
ATOM     16  OR  ALA     1       2.107   0.313   0.705  1.00  1.00
ATOM     17  NR  ALA     1       0.604   1.770   1.498  1.00  1.00
ATOM     18  HR  ALA     1      -0.359   1.986   1.593  1.00  1.00
ATOM     19  CR  ALA     1       1.573   2.595   2.158  1.00  1.00
END
ATOM      1  CL  ALA     1      -3.641   0.954   1.179  1.00  1.00
ATOM      5  CLP ALA     1      -2.294   0.335   1.290  1.00  1.00
ATOM      6  OL  ALA     1      -1.964  -0.273   2.288  1.00  1.00
ATOM      7  NL  ALA     1      -1.485   0.499   0.235  1.00  1.00
ATOM      8  HL  ALA     1      -1.803   0.995  -0.564  1.00  1.00
ATOM      9  CA  ALA     1      -0.175  -0.118   0.130  1.00  1.00
ATOM     10  HA  ALA     1      -0.203  -1.077   0.601  1.00  1.00
ATOM     11  CB  ALA     1       0.162  -0.300  -1.355  1.00  1.00
ATOM     15  CRP ALA     1       0.952   0.671   0.815  1.00  1.00
ATOM     16  OR  ALA     1       2.104   0.260   0.791  1.00  1.00
ATOM     17  NR  ALA     1       0.633   1.808   1.450  1.00  1.00
ATOM     18  HR  ALA     1      -0.328   2.065   1.503  1.00  1.00
ATOM     19  CR  ALA     1       1.608   2.627   2.129  1.00  1.00
END
ATOM      1  CL  ALA     1      -3.635   0.925   1.244  1.00  1.00
ATOM      5  CLP ALA     1      -2.297   0.305   1.309  1.00  1.00
ATOM      6  OL  ALA     1      -1.941  -0.334   2.290  1.00  1.00
ATOM      7  NL  ALA     1      -1.500   0.490   0.251  1.00  1.00
ATOM      8  HL  ALA     1      -1.827   1.009  -0.537  1.00  1.00
ATOM      9  CA  ALA     1      -0.178  -0.110   0.119  1.00  1.00
ATOM     10  HA  ALA     1      -0.205  -1.094   0.536  1.00  1.00
ATOM     11  CB  ALA     1       0.147  -0.217  -1.379  1.00  1.00
ATOM     15  CRP ALA     1       0.943   0.643   0.832  1.00  1.00
ATOM     16  OR  ALA     1       2.074   0.198   0.871  1.00  1.00
ATOM     17  NR  ALA     1       0.637   1.821   1.423  1.00  1.00
ATOM     18  HR  ALA     1      -0.311   2.123   1.418  1.00  1.00
ATOM     19  CR  ALA     1       1.602   2.629   2.109  1.00  1.00
END
ATOM      1  CL  ALA     1      -3.632   0.856   1.331  1.00  1.00
ATOM      5  CLP ALA     1      -2.282   0.250   1.355  1.00  1.00
ATOM      6  OL  ALA     1      -1.906  -0.403   2.301  1.00  1.00
ATOM      7  NL  ALA     1      -1.515   0.478   0.275  1.00  1.00
ATOM      8  HL  ALA     1      -1.860   0.990  -0.485  1.00  1.00
ATOM      9  CA  ALA     1      -0.192  -0.105   0.098  1.00  1.00
ATOM     10  HA  ALA     1      -0.204  -1.121   0.473  1.00  1.00
ATOM     11  CB  ALA     1       0.129  -0.136  -1.408  1.00  1.00
ATOM     15  CRP ALA     1       0.931   0.615   0.844  1.00  1.00
ATOM     16  OR  ALA     1       2.043   0.122   0.934  1.00  1.00
ATOM     17  NR  ALA     1       0.651   1.819   1.388  1.00  1.00
ATOM     18  HR  ALA     1      -0.283   2.155   1.349  1.00  1.00
ATOM     19  CR  ALA     1       1.624   2.595   2.115  1.00  1.00
END
ATOM      1  CL  ALA     1      -3.628   0.823   1.358  1.00  1.00
ATOM      5  CLP ALA     1      -2.277   0.241   1.370  1.00  1.00
ATOM      6  OL  ALA     1      -1.871  -0.396   2.325  1.00  1.00
ATOM      7  NL  ALA     1      -1.525   0.469   0.284  1.00  1.00
ATOM      8  HL  ALA     1      -1.898   0.970  -0.482  1.00  1.00
ATOM      9  CA  ALA     1      -0.195  -0.094   0.086  1.00  1.00
ATOM     10  HA  ALA     1      -0.203  -1.122   0.423  1.00  1.00
ATOM     11  CB  ALA     1       0.146  -0.058  -1.413  1.00  1.00
ATOM     15  CRP ALA     1       0.919   0.599   0.874  1.00  1.00
ATOM     16  OR  ALA     1       1.997   0.065   1.039  1.00  1.00
ATOM     17  NR  ALA     1       0.655   1.830   1.373  1.00  1.00
ATOM     18  HR  ALA     1      -0.248   2.200   1.261  1.00  1.00
ATOM     19  CR  ALA     1       1.625   2.581   2.124  1.00  1.00
END
ATOM      1  CL  ALA     1      -3.539   0.055   1.657  1.00  1.00
ATOM      5  CLP ALA     1      -2.117  -0.208   1.378  1.00  1.00
ATOM      6  OL  ALA     1      -1.453  -0.902   2.125  1.00  1.00
ATOM      7  NL  ALA     1      -1.602   0.351   0.289  1.00  1.00
ATOM      8  HL  ALA     1      -2.185   0.875  -0.310  1.00  1.00
ATOM      9  CA  ALA     1      -0.243   0.129  -0.186  1.00  1.00
ATOM     10  HA  ALA     1      -0.041  -0.924  -0.159  1.00  1.00
ATOM     11  CB  ALA     1      -0.153   0.625  -1.651  1.00  1.00
ATOM     15  CRP ALA     1       0.852   0.806   0.637  1.00  1.00
ATOM     16  OR  ALA     1       2.007   0.400   0.594  1.00  1.00
ATOM     17  NR  ALA     1       0.508   1.855   1.401  1.00  1.00
ATOM     18  HR  ALA     1      -0.445   2.112   1.454  1.00  1.00
ATOM     19  CR  ALA     1       1.460   2.569   2.226  1.00  1.00
END
ATOM      1  CL  ALA     1      -3.578   0.084   1.603  1.00  1.00
ATOM      5  CLP ALA     1      -2.140  -0.156   1.375  1.00  1.00
ATOM      6  OL  ALA     1      -1.473  -0.732   2.197  1.00  1.00
ATOM      7  NL  ALA     1      -1.623   0.335   0.237  1.00  1.00
ATOM      8  HL  ALA     1      -2.220   0.753  -0.416  1.00  1.00
ATOM      9  CA  ALA     1      -0.253   0.120  -0.195  1.00  1.00
ATOM     10  HA  ALA     1      -0.048  -0.931  -0.153  1.00  1.00
ATOM     11  CB  ALA     1      -0.128   0.612  -1.663  1.00  1.00
ATOM     15  CRP ALA     1       0.823   0.801   0.637  1.00  1.00
ATOM     16  OR  ALA     1       1.969   0.367   0.665  1.00  1.00
ATOM     17  NR  ALA     1       0.477   1.912   1.333  1.00  1.00
ATOM     18  HR  ALA     1      -0.468   2.199   1.317  1.00  1.00
ATOM     19  CR  ALA     1       1.410   2.627   2.163  1.00  1.00
END
ATOM      1  CL  ALA     1      -3.113   1.661   1.504  1.00  1.00
ATOM      5  CLP ALA     1      -1.769   1.059   1.566  1.00  1.00
ATOM      6  OL  ALA     1      -1.201   0.940   2.629  1.00  1.00
ATOM      7  NL  ALA     1      -1.219   0.714   0.392  1.00  1.00
ATOM      8  HL  ALA     1      -1.742   0.797  -0.435  1.00  1.00
ATOM      9  CA  ALA     1       0.058   0.023   0.242  1.00  1.00
ATOM     10  HA  ALA     1      -0.001  -0.896   0.782  1.00  1.00
ATOM     11  CB  ALA     1       0.235  -0.295  -1.249  1.00  1.00
ATOM     15  CRP ALA     1       1.299   0.757   0.745  1.00  1.00
ATOM     16  OR  ALA     1       2.276   0.138   1.135  1.00  1.00
ATOM     17  NR  ALA     1       1.277   2.102   0.736  1.00  1.00
ATOM     18  HR  ALA     1       0.447   2.567   0.458  1.00  1.00
ATOM     19  CR  ALA     1       2.391   2.896   1.191  1.00  1.00
END
ATOM      1  CL  ALA     1      -3.089   1.850   1.546  1.00  1.00
ATOM      5  CLP ALA     1      -1.667   1.457   1.629  1.00  1.00
ATOM      6  OL  ALA     1      -0.974   1.868   2.533  1.00  1.00
ATOM      7  NL  ALA     1      -1.204   0.683   0.642  1.00  1.00
ATOM      8  HL  ALA     1      -1.844   0.360  -0.021  1.00  1.00
ATOM      9  CA  ALA     1       0.126   0.105   0.564  1.00  1.00
ATOM     10  HA  ALA     1       0.239  -0.555   1.391  1.00  1.00
ATOM     11  CB  ALA     1       0.215  -0.722  -0.739  1.00  1.00
ATOM     15  CRP ALA     1       1.311   1.068   0.623  1.00  1.00
ATOM     16  OR  ALA     1       2.369   0.726   1.149  1.00  1.00
ATOM     17  NR  ALA     1       1.156   2.292   0.077  1.00  1.00
ATOM     18  HR  ALA     1       0.273   2.549  -0.285  1.00  1.00
ATOM     19  CR  ALA     1       2.201   3.277   0.107  1.00  1.00
END
ATOM      1  CL  ALA     1      -3.102   1.775   1.619  1.00  1.00
ATOM      5  CLP ALA     1      -1.661   1.466   1.659  1.00  1.00
ATOM      6  OL  ALA     1      -0.945   1.961   2.476  1.00  1.00
ATOM      7  NL  ALA     1      -1.205   0.663   0.688  1.00  1.00
ATOM      8  HL  ALA     1      -1.854   0.269   0.091  1.00  1.00
ATOM      9  CA  ALA     1       0.147   0.134   0.561  1.00  1.00
ATOM     10  HA  ALA     1       0.300  -0.545   1.355  1.00  1.00
ATOM     11  CB  ALA     1       0.237  -0.632  -0.776  1.00  1.00
ATOM     15  CRP ALA     1       1.306   1.133   0.628  1.00  1.00
ATOM     16  OR  ALA     1       2.361   0.819   1.176  1.00  1.00
ATOM     17  NR  ALA     1       1.129   2.345   0.068  1.00  1.00
ATOM     18  HR  ALA     1       0.252   2.577  -0.315  1.00  1.00
ATOM     19  CR  ALA     1       2.150   3.364   0.108  1.00  1.00
END
ATOM      1  CL  ALA     1      -3.137   1.689   1.564  1.00  1.00
ATOM      5  CLP ALA     1      -1.674   1.466   1.595  1.00  1.00
ATOM      6  OL  ALA     1      -0.991   2.041   2.377  1.00  1.00
ATOM      7  NL  ALA     1      -1.178   0.640   0.664  1.00  1.00
ATOM      8  HL  ALA     1      -1.829   0.190   0.106  1.00  1.00
ATOM      9  CA  ALA     1       0.192   0.170   0.547  1.00  1.00
ATOM     10  HA  ALA     1       0.347  -0.550   1.313  1.00  1.00
ATOM     11  CB  ALA     1       0.333  -0.536  -0.821  1.00  1.00
ATOM     15  CRP ALA     1       1.325   1.194   0.686  1.00  1.00
ATOM     16  OR  ALA     1       2.348   0.906   1.293  1.00  1.00
ATOM     17  NR  ALA     1       1.165   2.398   0.103  1.00  1.00
ATOM     18  HR  ALA     1       0.311   2.617  -0.339  1.00  1.00
ATOM     19  CR  ALA     1       2.173   3.424   0.206  1.00  1.00
END
ATOM      1  CL  ALA     1      -3.342   1.726   1.297  1.00  1.00
ATOM      5  CLP ALA     1      -1.882   1.644   1.449  1.00  1.00
ATOM      6  OL  ALA     1      -1.296   2.423   2.124  1.00  1.00
ATOM      7  NL  ALA     1      -1.259   0.684   0.740  1.00  1.00
ATOM      8  HL  ALA     1      -1.839   0.091   0.256  1.00  1.00
ATOM      9  CA  ALA     1       0.138   0.295   0.784  1.00  1.00
ATOM     10  HA  ALA     1       0.267  -0.321   1.638  1.00  1.00
ATOM     11  CB  ALA     1       0.437  -0.541  -0.481  1.00  1.00
ATOM     15  CRP ALA     1       1.207   1.385   0.899  1.00  1.00
ATOM     16  OR  ALA     1       2.160   1.248   1.674  1.00  1.00
ATOM     17  NR  ALA     1       1.092   2.478   0.129  1.00  1.00
ATOM     18  HR  ALA     1       0.291   2.586  -0.440  1.00  1.00
ATOM     19  CR  ALA     1       2.044   3.567   0.190  1.00  1.00
END
ATOM      1  CL  ALA     1      -3.361   1.726   1.315  1.00  1.00
ATOM      5  CLP ALA     1      -1.890   1.687   1.423  1.00  1.00
ATOM      6  OL  ALA     1      -1.302   2.522   2.029  1.00  1.00
ATOM      7  NL  ALA     1      -1.285   0.691   0.757  1.00  1.00
ATOM      8  HL  ALA     1      -1.865   0.049   0.326  1.00  1.00
ATOM      9  CA  ALA     1       0.123   0.321   0.749  1.00  1.00
ATOM     10  HA  ALA     1       0.270  -0.331   1.585  1.00  1.00
ATOM     11  CB  ALA     1       0.408  -0.470  -0.534  1.00  1.00
ATOM     15  CRP ALA     1       1.192   1.410   0.900  1.00  1.00
ATOM     16  OR  ALA     1       2.114   1.273   1.701  1.00  1.00
ATOM     17  NR  ALA     1       1.111   2.493   0.112  1.00  1.00
ATOM     18  HR  ALA     1       0.326   2.609  -0.490  1.00  1.00
ATOM     19  CR  ALA     1       2.068   3.578   0.188  1.00  1.00
END
ATOM      1  CL  ALA     1      -3.419   1.747   1.251  1.00  1.00
ATOM      5  CLP ALA     1      -1.947   1.630   1.371  1.00  1.00
ATOM      6  OL  ALA     1      -1.331   2.379   2.060  1.00  1.00
ATOM      7  NL  ALA     1      -1.380   0.668   0.616  1.00  1.00
ATOM      8  HL  ALA     1      -1.992   0.115   0.104  1.00  1.00
ATOM      9  CA  ALA     1       0.007   0.227   0.571  1.00  1.00
ATOM     10  HA  ALA     1       0.086  -0.578   1.262  1.00  1.00
ATOM     11  CB  ALA     1       0.288  -0.306  -0.835  1.00  1.00
ATOM     15  CRP ALA     1       1.132   1.190   0.974  1.00  1.00
ATOM     16  OR  ALA     1       1.974   0.858   1.808  1.00  1.00
ATOM     17  NR  ALA     1       1.199   2.390   0.352  1.00  1.00
ATOM     18  HR  ALA     1       0.482   2.643  -0.277  1.00  1.00
ATOM     19  CR  ALA     1       2.218   3.363   0.657  1.00  1.00
END
ATOM      1  CL  ALA     1      -3.430   1.748   1.261  1.00  1.00
ATOM      5  CLP ALA     1      -1.958   1.650   1.340  1.00  1.00
ATOM      6  OL  ALA     1      -1.333   2.471   1.961  1.00  1.00
ATOM      7  NL  ALA     1      -1.392   0.653   0.642  1.00  1.00
ATOM      8  HL  ALA     1      -2.018   0.061   0.177  1.00  1.00
ATOM      9  CA  ALA     1      -0.005   0.219   0.569  1.00  1.00
ATOM     10  HA  ALA     1       0.083  -0.615   1.230  1.00  1.00
ATOM     11  CB  ALA     1       0.266  -0.275  -0.863  1.00  1.00
ATOM     15  CRP ALA     1       1.126   1.166   0.993  1.00  1.00
ATOM     16  OR  ALA     1       1.918   0.834   1.868  1.00  1.00
ATOM     17  NR  ALA     1       1.248   2.346   0.359  1.00  1.00
ATOM     18  HR  ALA     1       0.548   2.609  -0.299  1.00  1.00
ATOM     19  CR  ALA     1       2.271   3.308   0.675  1.00  1.00
END
ATOM      1  CL  ALA     1      -3.438   1.702   1.306  1.00  1.00
ATOM      5  CLP ALA     1      -1.962   1.659   1.317  1.00  1.00
ATOM      6  OL  ALA     1      -1.332   2.532   1.870  1.00  1.00
ATOM      7  NL  ALA     1      -1.406   0.632   0.671  1.00  1.00
ATOM      8  HL  ALA     1      -2.029   0.002   0.252  1.00  1.00
ATOM      9  CA  ALA     1      -0.007   0.228   0.554  1.00  1.00
ATOM     10  HA  ALA     1       0.103  -0.631   1.184  1.00  1.00
ATOM     11  CB  ALA     1       0.255  -0.224  -0.899  1.00  1.00
ATOM     15  CRP ALA     1       1.124   1.169   1.002  1.00  1.00
ATOM     16  OR  ALA     1       1.889   0.829   1.901  1.00  1.00
ATOM     17  NR  ALA     1       1.265   2.342   0.365  1.00  1.00
ATOM     18  HR  ALA     1       0.590   2.614  -0.306  1.00  1.00
ATOM     19  CR  ALA     1       2.313   3.280   0.698  1.00  1.00
END
ATOM      1  CL  ALA     1      -3.441   1.677   1.342  1.00  1.00
ATOM      5  CLP ALA     1      -1.971   1.666   1.304  1.00  1.00
ATOM      6  OL  ALA     1      -1.348   2.594   1.774  1.00  1.00
ATOM      7  NL  ALA     1      -1.408   0.602   0.696  1.00  1.00
ATOM      8  HL  ALA     1      -2.050  -0.062   0.329  1.00  1.00
ATOM      9  CA  ALA     1      -0.014   0.235   0.538  1.00  1.00
ATOM     10  HA  ALA     1       0.114  -0.660   1.127  1.00  1.00
ATOM     11  CB  ALA     1       0.223  -0.161  -0.935  1.00  1.00
ATOM     15  CRP ALA     1       1.115   1.153   1.020  1.00  1.00
ATOM     16  OR  ALA     1       1.857   0.813   1.931  1.00  1.00
ATOM     17  NR  ALA     1       1.290   2.335   0.385  1.00  1.00
ATOM     18  HR  ALA     1       0.632   2.617  -0.298  1.00  1.00
ATOM     19  CR  ALA     1       2.337   3.252   0.749  1.00  1.00
END
ATOM      1  CL  ALA     1      -3.443   1.670   1.352  1.00  1.00
ATOM      5  CLP ALA     1      -1.973   1.670   1.295  1.00  1.00
ATOM      6  OL  ALA     1      -1.351   2.609   1.744  1.00  1.00
ATOM      7  NL  ALA     1      -1.409   0.597   0.704  1.00  1.00
ATOM      8  HL  ALA     1      -2.050  -0.076   0.355  1.00  1.00
ATOM      9  CA  ALA     1      -0.014   0.237   0.533  1.00  1.00
ATOM     10  HA  ALA     1       0.119  -0.663   1.113  1.00  1.00
ATOM     11  CB  ALA     1       0.217  -0.147  -0.945  1.00  1.00
ATOM     15  CRP ALA     1       1.115   1.152   1.023  1.00  1.00
ATOM     16  OR  ALA     1       1.849   0.808   1.938  1.00  1.00
ATOM     17  NR  ALA     1       1.296   2.334   0.388  1.00  1.00
ATOM     18  HR  ALA     1       0.638   2.620  -0.293  1.00  1.00
ATOM     19  CR  ALA     1       2.342   3.249   0.754  1.00  1.00
END
ATOM      1  CL  ALA     1      -3.451   1.630   1.422  1.00  1.00
ATOM      5  CLP ALA     1      -1.983   1.689   1.248  1.00  1.00
ATOM      6  OL  ALA     1      -1.374   2.689   1.550  1.00  1.00
ATOM      7  NL  ALA     1      -1.421   0.569   0.756  1.00  1.00
ATOM      8  HL  ALA     1      -2.045  -0.151   0.513  1.00  1.00
ATOM      9  CA  ALA     1      -0.017   0.248   0.499  1.00  1.00
ATOM     10  HA  ALA     1       0.149  -0.681   1.023  1.00  1.00
ATOM     11  CB  ALA     1       0.171  -0.057  -0.999  1.00  1.00
ATOM     15  CRP ALA     1       1.111   1.147   1.033  1.00  1.00
ATOM     16  OR  ALA     1       1.807   0.781   1.969  1.00  1.00
ATOM     17  NR  ALA     1       1.327   2.329   0.410  1.00  1.00
ATOM     18  HR  ALA     1       0.679   2.635  -0.277  1.00  1.00
ATOM     19  CR  ALA     1       2.372   3.237   0.799  1.00  1.00
END
ATOM      1  CL  ALA     1      -3.331   1.449   1.617  1.00  1.00
ATOM      5  CLP ALA     1      -1.868   1.399   1.408  1.00  1.00
ATOM      6  OL  ALA     1      -1.169   2.255   1.904  1.00  1.00
ATOM      7  NL  ALA     1      -1.424   0.371   0.676  1.00  1.00
ATOM      8  HL  ALA     1      -2.118  -0.203   0.289  1.00  1.00
ATOM      9  CA  ALA     1      -0.062   0.001   0.310  1.00  1.00
ATOM     10  HA  ALA     1      -0.008  -1.054   0.497  1.00  1.00
ATOM     11  CB  ALA     1       0.131   0.162  -1.216  1.00  1.00
ATOM     15  CRP ALA     1       1.142   0.546   1.099  1.00  1.00
ATOM     16  OR  ALA     1       1.741  -0.171   1.894  1.00  1.00
ATOM     17  NR  ALA     1       1.537   1.815   0.864  1.00  1.00
ATOM     18  HR  ALA     1       0.963   2.391   0.297  1.00  1.00
ATOM     19  CR  ALA     1       2.669   2.426   1.513  1.00  1.00
END
ATOM      1  CL  ALA     1      -3.321   1.436   1.650  1.00  1.00
ATOM      5  CLP ALA     1      -1.870   1.422   1.372  1.00  1.00
ATOM      6  OL  ALA     1      -1.182   2.323   1.789  1.00  1.00
ATOM      7  NL  ALA     1      -1.422   0.347   0.697  1.00  1.00
ATOM      8  HL  ALA     1      -2.106  -0.263   0.374  1.00  1.00
ATOM      9  CA  ALA     1      -0.057   0.008   0.290  1.00  1.00
ATOM     10  HA  ALA     1       0.002  -1.051   0.446  1.00  1.00
ATOM     11  CB  ALA     1       0.113   0.213  -1.212  1.00  1.00
ATOM     15  CRP ALA     1       1.139   0.538   1.102  1.00  1.00
ATOM     16  OR  ALA     1       1.724  -0.196   1.881  1.00  1.00
ATOM     17  NR  ALA     1       1.539   1.803   0.879  1.00  1.00
ATOM     18  HR  ALA     1       0.972   2.397   0.326  1.00  1.00
ATOM     19  CR  ALA     1       2.672   2.407   1.539  1.00  1.00
END
ATOM      1  CL  ALA     1      -3.318   1.434   1.657  1.00  1.00
ATOM      5  CLP ALA     1      -1.871   1.426   1.363  1.00  1.00
ATOM      6  OL  ALA     1      -1.186   2.341   1.756  1.00  1.00
ATOM      7  NL  ALA     1      -1.422   0.343   0.704  1.00  1.00
ATOM      8  HL  ALA     1      -2.101  -0.279   0.398  1.00  1.00
ATOM      9  CA  ALA     1      -0.058   0.010   0.290  1.00  1.00
ATOM     10  HA  ALA     1       0.005  -1.051   0.433  1.00  1.00
ATOM     11  CB  ALA     1       0.109   0.227  -1.215  1.00  1.00
ATOM     15  CRP ALA     1       1.138   0.536   1.100  1.00  1.00
ATOM     16  OR  ALA     1       1.723  -0.202   1.878  1.00  1.00
ATOM     17  NR  ALA     1       1.539   1.802   0.887  1.00  1.00
ATOM     18  HR  ALA     1       0.970   2.398   0.335  1.00  1.00
ATOM     19  CR  ALA     1       2.675   2.402   1.547  1.00  1.00
END
ATOM      1  CL  ALA     1      -3.297   1.417   1.700  1.00  1.00
ATOM      5  CLP ALA     1      -1.874   1.437   1.310  1.00  1.00
ATOM      6  OL  ALA     1      -1.214   2.432   1.560  1.00  1.00
ATOM      7  NL  ALA     1      -1.412   0.320   0.746  1.00  1.00
ATOM      8  HL  ALA     1      -2.060  -0.372   0.544  1.00  1.00
ATOM      9  CA  ALA     1      -0.065   0.025   0.282  1.00  1.00
ATOM     10  HA  ALA     1       0.023  -1.051   0.357  1.00  1.00
ATOM     11  CB  ALA     1       0.071   0.308  -1.213  1.00  1.00
ATOM     15  CRP ALA     1       1.141   0.510   1.103  1.00  1.00
ATOM     16  OR  ALA     1       1.724  -0.245   1.863  1.00  1.00
ATOM     17  NR  ALA     1       1.541   1.794   0.938  1.00  1.00
ATOM     18  HR  ALA     1       0.957   2.397   0.401  1.00  1.00
ATOM     19  CR  ALA     1       2.683   2.371   1.604  1.00  1.00
END
ATOM      1  CL  ALA     1      -3.283   1.421   1.730  1.00  1.00
ATOM      5  CLP ALA     1      -1.874   1.449   1.277  1.00  1.00
ATOM      6  OL  ALA     1      -1.222   2.476   1.436  1.00  1.00
ATOM      7  NL  ALA     1      -1.405   0.299   0.773  1.00  1.00
ATOM      8  HL  ALA     1      -2.034  -0.422   0.640  1.00  1.00
ATOM      9  CA  ALA     1      -0.063   0.028   0.272  1.00  1.00
ATOM     10  HA  ALA     1       0.015  -1.050   0.307  1.00  1.00
ATOM     11  CB  ALA     1       0.057   0.364  -1.214  1.00  1.00
ATOM     15  CRP ALA     1       1.134   0.492   1.093  1.00  1.00
ATOM     16  OR  ALA     1       1.729  -0.288   1.825  1.00  1.00
ATOM     17  NR  ALA     1       1.539   1.779   0.976  1.00  1.00
ATOM     18  HR  ALA     1       0.945   2.388   0.456  1.00  1.00
ATOM     19  CR  ALA     1       2.682   2.335   1.653  1.00  1.00
END
ATOM      1  CL  ALA     1      -3.265   1.435   1.760  1.00  1.00
ATOM      5  CLP ALA     1      -1.868   1.457   1.257  1.00  1.00
ATOM      6  OL  ALA     1      -1.229   2.500   1.343  1.00  1.00
ATOM      7  NL  ALA     1      -1.398   0.292   0.802  1.00  1.00
ATOM      8  HL  ALA     1      -2.014  -0.454   0.728  1.00  1.00
ATOM      9  CA  ALA     1      -0.067   0.024   0.264  1.00  1.00
ATOM     10  HA  ALA     1       0.011  -1.049   0.257  1.00  1.00
ATOM     11  CB  ALA     1       0.028   0.426  -1.206  1.00  1.00
ATOM     15  CRP ALA     1       1.144   0.464   1.092  1.00  1.00
ATOM     16  OR  ALA     1       1.748  -0.346   1.781  1.00  1.00
ATOM     17  NR  ALA     1       1.532   1.754   1.029  1.00  1.00
ATOM     18  HR  ALA     1       0.931   2.385   0.536  1.00  1.00
ATOM     19  CR  ALA     1       2.676   2.280   1.721  1.00  1.00
END
ATOM      1  CL  ALA     1      -3.236   1.453   1.772  1.00  1.00
ATOM      5  CLP ALA     1      -1.865   1.473   1.217  1.00  1.00
ATOM      6  OL  ALA     1      -1.244   2.522   1.222  1.00  1.00
ATOM      7  NL  ALA     1      -1.388   0.292   0.824  1.00  1.00
ATOM      8  HL  ALA     1      -1.982  -0.485   0.827  1.00  1.00
ATOM      9  CA  ALA     1      -0.066   0.031   0.248  1.00  1.00
ATOM     10  HA  ALA     1       0.018  -1.048   0.230  1.00  1.00
ATOM     11  CB  ALA     1       0.011   0.464  -1.213  1.00  1.00
ATOM     15  CRP ALA     1       1.144   0.452   1.088  1.00  1.00
ATOM     16  OR  ALA     1       1.767  -0.373   1.737  1.00  1.00
ATOM     17  NR  ALA     1       1.517   1.749   1.061  1.00  1.00
ATOM     18  HR  ALA     1       0.906   2.387   0.586  1.00  1.00
ATOM     19  CR  ALA     1       2.660   2.262   1.754  1.00  1.00
END
ATOM      1  CL  ALA     1      -3.225   1.461   1.784  1.00  1.00
ATOM      5  CLP ALA     1      -1.878   1.466   1.191  1.00  1.00
ATOM      6  OL  ALA     1      -1.276   2.527   1.106  1.00  1.00
ATOM      7  NL  ALA     1      -1.375   0.274   0.839  1.00  1.00
ATOM      8  HL  ALA     1      -1.947  -0.517   0.921  1.00  1.00
ATOM      9  CA  ALA     1      -0.077   0.024   0.236  1.00  1.00
ATOM     10  HA  ALA     1       0.009  -1.048   0.194  1.00  1.00
ATOM     11  CB  ALA     1      -0.004   0.503  -1.214  1.00  1.00
ATOM     15  CRP ALA     1       1.144   0.436   1.066  1.00  1.00
ATOM     16  OR  ALA     1       1.800  -0.403   1.678  1.00  1.00
ATOM     17  NR  ALA     1       1.483   1.736   1.091  1.00  1.00
ATOM     18  HR  ALA     1       0.861   2.388   0.647  1.00  1.00
ATOM     19  CR  ALA     1       2.642   2.246   1.792  1.00  1.00
END
ATOM      1  CL  ALA     1      -3.212   1.465   1.797  1.00  1.00
ATOM      5  CLP ALA     1      -1.874   1.470   1.168  1.00  1.00
ATOM      6  OL  ALA     1      -1.286   2.526   1.008  1.00  1.00
ATOM      7  NL  ALA     1      -1.363   0.265   0.860  1.00  1.00
ATOM      8  HL  ALA     1      -1.914  -0.534   1.016  1.00  1.00
ATOM      9  CA  ALA     1      -0.074   0.012   0.232  1.00  1.00
ATOM     10  HA  ALA     1       0.001  -1.058   0.173  1.00  1.00
ATOM     11  CB  ALA     1      -0.020   0.528  -1.210  1.00  1.00
ATOM     15  CRP ALA     1       1.147   0.408   1.060  1.00  1.00
ATOM     16  OR  ALA     1       1.827  -0.445   1.625  1.00  1.00
ATOM     17  NR  ALA     1       1.461   1.721   1.140  1.00  1.00
ATOM     18  HR  ALA     1       0.821   2.361   0.731  1.00  1.00
ATOM     19  CR  ALA     1       2.614   2.214   1.845  1.00  1.00
END
ATOM      1  CL  ALA     1      -3.185   1.487   1.790  1.00  1.00
ATOM      5  CLP ALA     1      -1.865   1.480   1.139  1.00  1.00
ATOM      6  OL  ALA     1      -1.293   2.532   0.896  1.00  1.00
ATOM      7  NL  ALA     1      -1.349   0.268   0.862  1.00  1.00
ATOM      8  HL  ALA     1      -1.881  -0.527   1.095  1.00  1.00
ATOM      9  CA  ALA     1      -0.065   0.013   0.226  1.00  1.00
ATOM     10  HA  ALA     1      -0.006  -1.063   0.151  1.00  1.00
ATOM     11  CB  ALA     1      -0.019   0.539  -1.224  1.00  1.00
ATOM     15  CRP ALA     1       1.170   0.398   1.031  1.00  1.00
ATOM     16  OR  ALA     1       1.871  -0.463   1.540  1.00  1.00
ATOM     17  NR  ALA     1       1.447   1.706   1.159  1.00  1.00
ATOM     18  HR  ALA     1       0.788   2.362   0.800  1.00  1.00
ATOM     19  CR  ALA     1       2.602   2.205   1.868  1.00  1.00
END
ATOM      1  CL  ALA     1      -3.257   1.605   1.105  1.00  1.00
ATOM      5  CLP ALA     1      -1.941   1.459   0.447  1.00  1.00
ATOM      6  OL  ALA     1      -1.481   2.369  -0.223  1.00  1.00
ATOM      7  NL  ALA     1      -1.303   0.291   0.647  1.00  1.00
ATOM      8  HL  ALA     1      -1.743  -0.379   1.229  1.00  1.00
ATOM      9  CA  ALA     1      -0.011  -0.077   0.099  1.00  1.00
ATOM     10  HA  ALA     1       0.155  -1.099   0.417  1.00  1.00
ATOM     11  CB  ALA     1       0.001  -0.097  -1.439  1.00  1.00
ATOM     15  CRP ALA     1       1.191   0.673   0.683  1.00  1.00
ATOM     16  OR  ALA     1       2.015   0.103   1.375  1.00  1.00
ATOM     17  NR  ALA     1       1.303   1.983   0.393  1.00  1.00
ATOM     18  HR  ALA     1       0.553   2.411  -0.109  1.00  1.00
ATOM     19  CR  ALA     1       2.395   2.811   0.843  1.00  1.00
END
FIXED
FIXEDthe positions in the list of input frames of the two path nodes whose positions remain fixed during the path optimization=1,42 UPDATEthe frequency with which the path should be updated=1000 WFILEfile on which to write out the path=out-path.pdb WSTRIDE frequency with which to write out the path=20000
PRINTPrint quantities to a file. More details ARGthe labels of the values that you would like to print to the file=p1b.* FILEthe name of the file on which to output these quantities=colvar_b STRIDE the frequency with which the quantities of interest should be output=1

As we have not used the PROPERTY keyword in the input the values in the equation for above are set equal to 1, 2, 3... Furthermore, when an input like the one above is used the vectors , and from the expression above are computed using an RMSD action with the DISPLACEMENT flag enabled. The instaneous structure is thus aligned with the reference structures so as to remove motions due to translation of the center of mass and rotation of the reference frame. These vector of atomic displacements that do not include the translation and rotation are also used in the AVERAGE_PATH_DISPLACEMENT action that is used to update the path.

As we have not used the PROPERTY keyword in the input the values in the equation for above are set equal to 1, 2, 3...

Input

The arguments that serve as the input for this action are specified using one or more of the keywords in the following table.

Keyword Type Description
ARG scalar the list of arguments you would like to use in your definition of the path

Full list of keywords

The following table describes the keywords and options that can be used with this action

Keyword Type Default Description
ARG input none the list of arguments you would like to use in your definition of the path
REFERENCE compulsory none a pdb file containing the set of reference configurations
TYPE compulsory OPTIMAL-FAST the manner in which distances are calculated
FIXED compulsory none the positions in the list of input frames of the two path nodes whose positions remain fixed during the path optimization
HALFLIFE compulsory -1 the number of MD steps after which a previously measured path distance weighs only 50 percent in the average
UPDATE compulsory none the frequency with which the path should be updated
FMT compulsory %f the format to use for output files
WSTRIDE compulsory 0, frequency with which to write out the path
PROPERTY optional not used read in path coordinates by finding option with this label in remark of pdb frames
WFILE optional not used file on which to write out the path

References

More information about how this action can be used is available in the following articles: