[gmx-users] combining multiple MD proteins,

[daniel madulu shadrack]

Dear, I want to combine proteins to merge into single pdb but I get this
error below.


Command line:
  gmx trjcat -f 10ns.pdb 15ns.pdb 40ns.pdb 60ns.pdb 90ns.pdb -o all.pdb

Reading frame       0 time 10000.000    '', 3420 atoms
Last frame          0 time 10000.000
Reading frame       0 time 15000.000    '', 3420 atoms
Last frame          0 time 15000.000
Reading frame       0 time 40000.000    '', 3420 atoms
Last frame          0 time 40000.000
Reading frame       0 time 60000.000    '', 3420 atoms
Last frame          0 time 60000.000
Reading frame       0 time 90000.000    '', 3420 atoms
Last frame          0 time 90000.000


Summary of files and start times used:

          File                Start time       Time step
---------------------------------------------------------
                 10ns.pdb    10000.000 ps        0.000 ps
                 15ns.pdb    15000.000 ps        0.000 ps
                 40ns.pdb    40000.000 ps        0.000 ps
                 60ns.pdb    60000.000 ps        0.000 ps
                 90ns.pdb    90000.000 ps        0.000 ps

Reading frame       0 time 10000.000

Continue writing frames from 10ns.pdb t=10000 ps, frame=0

-------------------------------------------------------
Program gmx trjcat, VERSION 5.1.4
Source code file:
/home/daniel/installed/gromacs-5.1.4/src/gromacs/fileio/trxio.c, line: 557

Fatal error:
Can not write a pdb file without atom names
For more information and tips for troubleshooting, please check the GROMACS
website at http://www.gromacs.org/Documentation/Errors
-------------------------------------------------------


-- 


*Regards,               *
Daniel Madulu Shadrack., (M.Sc. Chem).
PhD Research Scholar
(Nanomedicine & Comp. Aided Drug Design)

  dmssjut at gmail.com
-
*FOR GOD LET US DO MUCH, **QUICK AND **WELL*..
                                          *St. Gaspar Del Bufalo*