Hi all, I recently started molecular dynamics with gromacs performing protein-ligand simulations for my project first i worked out example from justin tutorials on protein ligand system and trying to apply to my protein and ligand.
First i generated topology for my protein using pdbgmx and then i used PRODRG tool ligand topology has been generated then i included ligand.itp file in topol.top file and pasted ligand.gro which is generated from PRODRG tool in protein.gro as suggested in tutorial but problem comes now while running editconf as follows warning bad box editconf -f protein .gro -o box.gro -bt cubic -d 1.0 *WARNING: Bad box in file protein.gro* Generated a cubic box 5.553 x 4.382 x 4.434 Read 2053 atoms Volume: 107.894 nm^3, corresponds to roughly 48500 electrons No velocities found system size : 5.553 4.382 4.434 (nm) diameter : 6.093 (nm) center : 0.068 -0.079 0.153 (nm) box vectors : 5.553 4.382 4.434 (nm) box angles : 90.00 90.00 90.00 (degrees) box volume : 107.89 (nm^3) shift : 3.978 4.126 3.894 (nm) new center : 4.047 4.047 4.047 (nm) new box vectors : 8.093 8.093 8.093 (nm) new box angles : 90.00 90.00 90.00 (degrees) new box volume : 530.06 (nm^3) Actually this problem is already been raised from some one else in gromacs discussion list i tried to use that solution but it is not helping me Can any body tell me where i am going wrong.. Thanks in advance Nitin
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