[gmx-users] pdb2gmx fails because of imaginary "Residue E"

[kolnkempff]

pdb2gmx produces error message:
Fatal error:
Residue 'E' not found in residue topology database

But there is no "Residue 'E' " in my pdb file (see below).  I have verified
that all residues in the pdb file are listed in ffamber03.rtp and pdb2gmx
does identify the ACE and NME caps.


COMPND    UNNAMED
AUTHOR    GENERATED BY OPEN BABEL 2.3.1
ATOM    1  N   PHE     2       0.720   0.859  -0.499  1.00  0.00           N  
ATOM    2  C   PHE     2       0.760  -0.439   0.174  1.00  0.00           C  
ATOM    3  C   PHE     2       2.125  -1.161   0.111  1.00  0.00           C  
ATOM    4  O   PHE     2       2.253  -2.263   0.634  1.00  0.00           O  
ATOM    5  H   PHE     2       0.176   0.905  -1.352  1.00  0.00           H  
ATOM    6  H   PHE     2       0.585  -0.253   1.240  1.00  0.00           H  
ATOM    7  C   PHE     2      -0.336  -1.383  -0.373  1.00  0.00           C  
ATOM    8  C   PHE     2      -1.743  -0.858  -0.186  1.00  0.00           C  
ATOM    9  H   PHE     2      -0.200  -2.340   0.138  1.00  0.00           H  
ATOM   10  H   PHE     2      -0.145  -1.567  -1.440  1.00  0.00           H  
ATOM   11  C   PHE     2      -4.354   0.139   0.179  1.00  0.00           C  
ATOM   12  C   PHE     2      -2.316  -0.794   1.094  1.00  0.00           C  
ATOM   13  C   PHE     2      -2.504  -0.416  -1.277  1.00  0.00           C  
ATOM   14  C   PHE     2      -3.799   0.078  -1.100  1.00  0.00           C  
ATOM   15  C   PHE     2      -3.607  -0.301   1.276  1.00  0.00           C  
ATOM   16  H   PHE     2      -1.744  -1.138   1.954  1.00  0.00           H  
ATOM   17  H   PHE     2      -2.086  -0.476  -2.281  1.00  0.00           H  
ATOM   18  H   PHE     2      -4.373   0.412  -1.961  1.00  0.00           H  
ATOM   19  H   PHE     2      -4.033  -0.263   2.276  1.00  0.00           H  
ATOM   20  H   PHE     2      -5.362   0.519   0.320  1.00  0.00           H  
HETATM   21  C   ACE     1       0.873   2.036   0.208  1.00  0.00          
C  
HETATM   22  O   ACE     1       1.301   2.055   1.353  1.00  0.00          
O  
HETATM   23  C   ACE     1       0.484   3.302  -0.540  1.00  0.00          
C  
HETATM   24  H   ACE     1       1.253   4.060  -0.375  1.00  0.00          
H  
HETATM   25  H   ACE     1      -0.451   3.685  -0.116  1.00  0.00          
H  
HETATM   26  H   ACE     1       0.345   3.153  -1.616  1.00  0.00          
H  
HETATM   27  N   NME     3       3.115  -0.507  -0.549  1.00  0.00          
N  
HETATM   28  C   NME     3       4.474  -1.010  -0.616  1.00  0.00          
C  
HETATM   29  H   NME     3       5.163  -0.381  -0.040  1.00  0.00          
H  
HETATM   30  H   NME     3       4.474  -2.015  -0.195  1.00  0.00          
H  
HETATM   31  H   NME     3       4.822  -1.054  -1.654  1.00  0.00          
H  
HETATM   32  H   NME     3       2.906   0.422  -0.885  1.00  0.00          
H                                                   
END


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