majid hasan wrote:
Dear All,
I am trying to add a single strand dna, and single walled carbon
nanotube in a box using the genbox command. After typing following command:
genbox -cp cntcapped.pdb -cs spc216.gro -ci ssgcg.gro -nmol 1 -box 2 2 2
-o cntdna.gro,
I get: Reading solute configuration
Containing 168 atoms in 1 residues
Initialising van der waals distances...
WARNING: masses and atomic (Van der Waals) radii will be determined
based on residue and atom names. These numbers can deviate
from the correct mass and radius of the atom type.
Reading solvent configuration
"Giving Russians Opium May Alter Current Situation"
solvent configuration contains 648 atoms in 216 residues
and then it takes forever to produce output.
I tried to generate an output with just one molecule in solvent
(spc216.gro), and I ran into same problem. I suspect something is wrong
with my solvent input (file attached). I copied this file from
gromacs/tutor/water folder, though it looks reasonable when I view I
view the corresponding .pdb file in rasmol (I created .gro file from
.pdb file using editconf -f spc216.pdb -o spc216.gro).
Could anyone please guide me about possible issues, and how to resolve
them?
You're asking genbox to do far too many things at once. Divide your procedure
into steps:
1. Set a box size using editconf for either the CNT or DNA.
2. Place DNA into box with CNT using genbox -ci -nmol 1 (or vice versa: CNT into
DNA box, whichever order you want)
3. Solvate
-Justin
--
========================================
Justin A. Lemkul
Ph.D. Candidate
ICTAS Doctoral Scholar
MILES-IGERT Trainee
Department of Biochemistry
Virginia Tech
Blacksburg, VA
jalemkul[at]vt.edu | (540) 231-9080
http://www.bevanlab.biochem.vt.edu/Pages/Personal/justin
========================================
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