I had some issues today using some PDBs generated by Modeller, and I tracked the error to the fact the TER fields inside the PDB have more columns (which should not be there)

For example

ATOM   1393  C2'  DT D  35      81.341  17.516  55.945  1.00 48.63           C
ATOM   1394  C3'  DT D  35      82.152  18.800  55.754  1.00 48.81           C
ATOM   1395  O3'  DT D  35      83.036  19.108  56.819  1.00 49.40           O
TER    1396       DT D  35
ATOM   1397  N   SER A  20      33.719  48.929 107.140  1.00 49.89           N
ATOM   1398  CA  SER A  20      34.080  48.490 108.522  1.00 50.05           C
ATOM   1399  CB  SER A  20      33.010  48.924 109.527  1.00 50.13           C

I understand that the TER separator is not supposed to have anything afterwards. Is there a particular reason why Modeller is writing my TER records like that? It should read only "TER"

Best

Pedro