Dear Justin I have used all the commands given in the link provided by you but unable to get the solution. commands used by me are- trjconv -f prtn_full.xtc -s prtn_md.tpr -o prtn_md_whole.xtc -pbc whole -n prtn_drg.ndx trjconv -f prtn_md_whole.xtc -s prtn_md.tpr -o prtn_md_cluster.xtc -pbc cluster -n prtn_drg.ndx trjconv -f prtn_md_cluster.xtc -s prtn_md.tpr -o prtn_md_ref.gro -b 0 -e 0 -n prtn_drg.ndx
when i load the prtn_md_ref.gro in vmd i still get the unusual structure of protein. Please help me if i did not get the point and also check my full.mdp file whether it is correct or not, given below- ;^M title = Yo^M cpp = /usr/bin/cpp^M constraints = all-bonds^M integrator = md^M dt = 0.002 ; ps !^M nsteps = 50000000 ; total 100000 ps.^M nstcomm = 100^M nstxout = 25000^M nstvout = 500000^M nstfout = 500000^M nstlog = 500000^M nstenergy = 50000^M nstxtcout = 50000^M xtc-precision = 10^M nstlist = 10^M ns_type = grid^M rlist = 0.9^M coulombtype = PME^M rcoulomb = 1.2^M rvdw = 1.2^M fourierspacing = 0.12^M fourier_nx = 0^M fourier_ny = 0^M fourier_nz = 0^M pme_order = 4^M ewald_rtol = 1e-5^M optimize_fft = yes^M ; Berendsen temperature coupling is on in two groups^M Tcoupl = V-rescale^M tc-grps = Protein Non-Protein^M tau_t = 0.1 0.1^M ref_t = 310 310^M ; Energy monitoring^M energygrps = Protein Non-Protein ; Isotropic pressure coupling is now on^M Pcoupl = berendsen^M Pcoupltype = isotropic^M tau_p = 0.5^M compressibility = 4.5e-5^M 5,1 40% ref_p = 1.0^M ; Generate velocites is off at 310 K.^M gen_vel = no^M gen_temp = 310^M gen_seed = 173529^M ^M Thanks in advance On Sat, Sep 9, 2017 at 7:04 PM, Justin Lemkul <jalem...@vt.edu> wrote: > > > On 9/9/17 1:50 AM, ISHRAT JAHAN wrote: > >> Dear all, >> I have done 100ns md simulation of protein with drug using amber99sb.ff >> with gromacs-5.1.4 version. After simulation i found my protein broken >> into >> smaller parts in .gro file but when i load the final xtc file to pr.gro >> molecule does not break. I have applied -pbc nojump ,cluster and whole but >> unable to solve the problem. >> Will anyone help me to solve the above problem. >> > > We'll need to see your commands, exactly as issued, to be able to say > anything. In general: > > http://www.gromacs.org/Documentation/Terminology/Periodic_ > Boundary_Conditions#Suggested_trjconv_workflow > > -Justin > > -- > ================================================== > > Justin A. Lemkul, Ph.D. > Assistant Professor > Virginia Tech Department of Biochemistry > > 303 Engel Hall > 340 West Campus Dr. > Blacksburg, VA 24061 > > jalem...@vt.edu | (540) 231-3129 > http://www.biochem.vt.edu/people/faculty/JustinLemkul.html > > ================================================== > -- > Gromacs Users mailing list > > * Please search the archive at http://www.gromacs.org/Support > /Mailing_Lists/GMX-Users_List before posting! > > * Can't post? Read http://www.gromacs.org/Support/Mailing_Lists > > * For (un)subscribe requests visit > https://maillist.sys.kth.se/mailman/listinfo/gromacs.org_gmx-users or > send a mail to gmx-users-requ...@gromacs.org. > -- Gromacs Users mailing list * Please search the archive at http://www.gromacs.org/Support/Mailing_Lists/GMX-Users_List before posting! * Can't post? Read http://www.gromacs.org/Support/Mailing_Lists * For (un)subscribe requests visit https://maillist.sys.kth.se/mailman/listinfo/gromacs.org_gmx-users or send a mail to gmx-users-requ...@gromacs.org.