[gmx-users] How to correct incomplete pdb file

Hiromichi Tsurui tsurui at med.juntendo.ac.jp
Wed Nov 16 13:46:15 CET 2005


Hi, all of Gromacs users;

I tried to generate topology file for a pdb (1IAO.pdb) using pdb2gmx with 
the option -missing.
pdb2gmx showed alarm shown below;
It seems some information about His15 of B chain is incomplete.
Does any one let me know how to correct such defect in pdb file ?

Thank you.

###########################################################################################
Opening library file /usr/local/gromacs/share/top/FF.dat2Opening library 
file /usr/local/gromacs/share/top/ffG43a2.rtpOpening library file 
/usr/local/gromacs/share/top/aminoacids.datOpening library file 
/usr/local/gromacs/share/top/xlateat.dat23 out of 23 lines of xlateat.dat 
converted succesfullyAll occupancies are oneOpening library file 
/usr/local/gromacs/share/top/ffG43a2.atpAtomtype 50Opening library file 
/usr/local/gromacs/share/top/ffG43a2.rtpResidue 96Sorting it all 
out...Opening library file /usr/local/gromacs/share/top/ffG43a2.hdbOpening 
library file /usr/local/gromacs/share/top/ffG43a2-n.tdbOpening library file 
/usr/local/gromacs/share/top/ffG43a2-c.tdb Back Off! I just backed up 
1IAO.top to ./#1IAO.top.4#Opening library file 
/usr/local/gromacs/share/top/specbond.dat5 out of 5 lines of specbond.dat 
converted succesfullySpecial Atom Distance matrix:                    HIS4 
HIS24   HIS68  CYS107  HIS143  HIS146  CYS163                   NE232 
NE2187  NE2548   SG839 NE21129 NE21156  SG1287   HIS24  NE2187   1.679 
HIS68  NE2548   3.616   2.167  CYS107   SG839   2.903   2.749   3.792 
HIS143 NE21129   2.339   1.813   2.066   2.440  HIS146 NE21156   1.838 
1.721   3.025   1.224   1.484  CYS163  SG1287   3.074   2.837   3.810 
0.203   2.544   1.376  HIS167 NE21322   3.326   2.681   2.823   1.439 
1.707   1.557   1.417  HIS177 NE21403   3.949   3.833   4.636   1.103 
3.329   2.294   1.000                  HIS167                 NE21322 
HIS177 NE21403   1.945Linking CYS-107 SG-839 and CYS-163 SG-1287...There are 
261 donors and 264 acceptorsThere are 413 hydrogen bondsWill use HISB for 
residue 4Will use HISA for residue 24Will use HISB for residue 68Will use 
HISB for residue 143Will use HISA for residue 146Will use HISB for residue 
167Will use HISB for residue 177 Back Off! I just backed up 1IAO_A.itp to 
./#1IAO_A.itp.4#Making bonds...Opening library file 
/usr/local/gromacs/share/top/aminoacids.dat WARNING: atom CG1 is missing in 
residue ILE 52 in the pdb file  WARNING: atom CG2 is missing in residue ILE 
52 in the pdb file  WARNING: atom CD is missing in residue ILE 52 in the pdb 
file  WARNING: atom CB is missing in residue SER 125 in the pdb file 
WARNING: atom OG is missing in residue SER 125 in the pdb file  WARNING: 
atom HG is missing in residue SER 125 in the pdb file         You might need 
to add atom HG to the hydrogen database of residue SER         in the file 
ff???.hdb (see the manual)  WARNING: atom CB is missing in residue LYSH 126 
in the pdb file  WARNING: atom CG is missing in residue LYSH 126 in the pdb 
file  WARNING: atom CD is missing in residue LYSH 126 in the pdb file 
WARNING: atom CE is missing in residue LYSH 126 in the pdb file  WARNING: 
atom NZ is missing in residue LYSH 126 in the pdb file  WARNING: atom HZ1 is 
missing in residue LYSH 126 in the pdb file         You might need to add 
atom HZ1 to the hydrogen database of residue LYSH         in the file 
ff???.hdb (see the manual)  WARNING: atom HZ2 is missing in residue LYSH 126 
in the pdb file         You might need to add atom HZ2 to the hydrogen 
database of residue LYSH         in the file ff???.hdb (see the manual) 
WARNING: atom HZ3 is missing in residue LYSH 126 in the pdb file         You 
might need to add atom HZ3 to the hydrogen database of residue LYSH 
in the file ff???.hdb (see the manual)  WARNING: atom CG is missing in 
residue ASP 158 in the pdb file  WARNING: atom OD1 is missing in residue ASP 
158 in the pdb file  WARNING: atom OD2 is missing in residue ASP 158 in the 
pdb file  WARNING: atom CG is missing in residue ASP 159 in the pdb file 
WARNING: atom OD1 is missing in residue ASP 159 in the pdb file  WARNING: 
atom OD2 is missing in residue ASP 159 in the pdb file  WARNING: atom CG1 is 
missing in residue ILE 160 in the pdb file  WARNING: atom CG2 is missing in 
residue ILE 160 in the pdb file  WARNING: atom CG is missing in residue GLU 
172 in the pdb file  WARNING: atom CD is missing in residue GLU 172 in the 
pdb file  WARNING: atom OE1 is missing in residue GLU 172 in the pdb file 
WARNING: atom OE2 is missing in residue GLU 172 in the pdb file There were 
27 missing atoms in molecule Protein_ANumber of bonds was 1863, now 
1858Generating angles, dihedrals and pairs...Before cleaning: 2874 
pairsBefore cleaning: 3615 dihedralsThere are  938 dihedrals,  996 
impropers, 2737 angles          2874 pairs,     1858 bonds and     0 
dummiesTotal mass 19952.404 a.m.u.Total charge -8.000 eWriting topology Back 
Off! I just backed up posre_A.itp to ./#posre_A.itp.3#Opening library file 
/usr/local/gromacs/share/top/specbond.dat5 out of 5 lines of specbond.dat 
converted succesfullySpecial Atom Distance matrix:                    HIS8 
HIS11   CYS24   CYS88   HIS90  HIS121  HIS122                   NE254 
NE274   SG174   SG717  NE2738  NE2963  NE2973   HIS11   NE274   0.684 
CYS24   SG174   1.625   2.158   CYS88   SG717   1.508   2.078   0.201 
HIS90  NE2738   1.654   2.301   1.259   1.074  HIS121  NE2963   6.383 
6.562   5.183   5.337   5.894  HIS122  NE2973   6.178   6.411   4.907 
5.054   5.561   0.567  CYS127  SG1009   4.918   5.244   3.703   3.798 
4.037   2.288   1.853  HIS176 NE21411   7.211   7.510   5.900   6.021 
6.339   1.797   1.485  CYS183  SG1460   4.965   5.309   3.701   3.799 
4.047   2.298   1.832  HIS184 NE21470   4.969   5.412   3.556   3.645 
3.833   2.933   2.401  HIS187 NE21496   3.736   4.166   2.468   2.533 
2.675   3.464   3.048                  CYS127  HIS176  CYS183  HIS184 
SG1009 NE21411  SG1460 NE21470  HIS176 NE21411   2.360  CYS183  SG1460 
0.203   2.308  HIS184 NE21470   1.116   2.669   0.935  HIS187 NE21496 
1.398   3.668   1.382   1.300Linking CYS-24 SG-174 and CYS-88 
SG-717...Linking CYS-127 SG-1009 and CYS-183 SG-1460...There are 326 donors 
and 307 acceptorsThere are 456 hydrogen bondsWill use HISB for residue 8Will 
use HISB for residue 11Fatal error: Incomplete ring in HIS15

Hiromichi Tsurui MD, PhD
Dept. Pathology,
Juntendo University
Phone:81-3-5802-1039
Fax:81-3-3813-3164
tsurui at med.juntendo.ac.jp 
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