Thanks for the quick reply. I have tried it and it looks like it works. I
just wanted to double check what was happening.  My output was:
grid grid.out 40 .5 40 .5 40 .5 name grids byres :5.C1,C2,C3,C4,C5,C6   pdb
grid_test.pdb max .4
  [grid grid.out 40 .5 40 .5 40 .5 name grids byres :5.C1,C2,C3,C4,C5,C6  pdb
grid_test.pdb max .4]
    GRID:
Calculating positive density.
-=Grid Dims=-        X        Y        Z
        Bins:       40       40       40
      Origin:      -10      -10      -10
     Spacing:      0.5      0.5      0.5
      Center:        0        0        0
Gridding the center of mass of residues selected by the mask.
Grid will be printed to file grid.out
Grid data set: 'grids'
Mask expression: [:5.C1,C2,C3,C4,C5,C6  ]
Pseudo-PDB will be printed to grid_test.pdb
The grid is only measuring the COM for the six atoms specified and not for
the total residue correct?
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Received on Wed Mar 13 2019 - 10:00:03 PDT