[gmx-users] NMR restrained MD

Rama Krishna Koppisetti ramkishna72 at gmail.com
Fri Sep 6 23:27:46 CEST 2013


Sorry ..,here are my distance restraints file:

[ distance_restraints ]
;        ai         aj        type        index        type'        low
    up1        up2        fac
         301        2679         1          0          1         0.0
1.6214        2.211        1.0
        301        2696         1          0         1        0.0
1.6214        2.211        1.0
        301        3415         1          0          1        0.0
1.6214        2.211        1.0
        301         3432         1          0          1        0.0
1.6214        2.211         1.0
        301        6635         1          0          1         0.0
1.6214        2.211         1.0
          301         6652         1         0          1        0.0
    1.6214        2.211        1.0
        301        7187         1         0         1        0.0
1.6214        2.211        1.0
        301        7204         1          0          1        0.0
1.6214        2.211        1.0
        301           7279         1         0         1         0.0
    1.6214        2.211        1.0
        301          7296         1         0         1         0.0
1.6214        2.211        1.0
        301          7371         1           0         1         0.0
    1.6214        2.211        1.0
        301        7388         1         0         1        0.0
1.6214        2.211        1.0
        301         7923         1           0          1         0.0
    1.6214        2.211        1.0
        301        7940         1         0         1        0.0
1.6214        2.211        1.0
        301        8199         1         0         1        0.0
1.6214        2.211        1.0
        301        8216         1          0          1         0.0
1.6214        2.211        1.0
         344        2679         1          1         1         0.0
1.5763        2.1495        1.0
        344        2696         1          1         1        0.0
1.5763        2.1495        1.0
        344        3415         1          1         1        0.0
1.5763        2.1495        1.0
        344         3432         1          1         1        0.0
1.5763        2.1495        1.0
        344        6635         1          1         1         0.0
1.5763        2.1495        1.0
          344         6652         1         1         1        0.0
1.5763        2.1495        1.0
        344        7187         1         1         1        0.0
1.5763        2.1495        1.0
        344        7204         1          1         1        0.0
1.5763        2.1495        1.0
        344           7279         1         1         1         0.0
1.5763        2.1495        1.0
        344          7296         1         1         1         0.0
1.5763        2.1495        1.0
        344          7371         1           1         1         0.0
    1.5763        2.1495        1.0
        344        7388         1         1         1        0.0
1.5763        2.1495        1.0
        344         7923         1           1         1         0.0
1.5763        2.1495        1.0
        344        7940         1         1         1        0.0
1.5763        2.1495        1.0
        344        8199         1         1         1        0.0
1.5763        2.1495        1.0
        344        8216         1          1         1         0.0
1.5763        2.1495        1.0
         889        2679         1          2         1         0.0
1.8304        2.496        1.0
        889        2696         1          2         1        0.0
1.8304        2.496        1.0
        889        3415         1          2         1        0.0
1.8304        2.496        1.0
        889         3432         1          2         1        0.0
1.8304        2.496        1.0
        889        6635         1          2         1         0.0
1.8304        2.496        1.0
          889         6652         1         2         1        0.0
1.8304        2.496        1.0
        889        7187         1         2         1        0.0
1.8304        2.496        1.0
        889        7204         1          2         1        0.0
1.8304        2.496        1.0
        889           7279         1         2         1         0.0
1.8304        2.496        1.0
        889          7296         1         2         1         0.0
1.8304        2.496        1.0
        889          7371         1           2         1         0.0
    1.8304        2.496        1.0
        889        7388         1         2         1        0.0
1.8304        2.496        1.0
        889         7923         1           2         1         0.0
1.8304        2.496        1.0
        889        7940         1         2         1        0.0
1.8304        2.496        1.0
        889        8199         1         2         1        0.0
1.8304        2.496        1.0
        889        8216         1          2         1         0.0
1.8304        2.496        1.0
         922        2679         1          3         1         0.0
1.5433        2.1045        1.0
        922        2696         1          3         1        0.0
1.5433        2.1045        1.0
        922        3415         1          3         1        0.0
1.5433        2.1045        1.0
        922         3432         1          3         1        0.0
1.5433        2.1045        1.0
        922        6635         1          3         1         0.0
1.5433        2.1045        1.0
          922         6652         1         3         1        0.0
1.5433        2.1045        1.0
        922        7187         1         3         1        0.0
1.5433        2.1045        1.0
        922        7204         1          3         1        0.0
1.5433        2.1045        1.0
        922           7279         1         3         1         0.0
1.5433        2.1045        1.0
        922          7296         1         3         1         0.0
1.5433        2.1045        1.0
        922          7371         1           3         1         0.0
    1.5433        2.1045        1.0
        922        7388         1         3         1        0.0
1.5433        2.1045        1.0
        922         7923         1           3         1         0.0
1.5433        2.1045        1.0
        922        7940         1         3         1        0.0
1.5433        2.1045        1.0
        922        8199         1         3         1        0.0
1.5433        2.1045        1.0
        922        8216         1          3         1         0.0
1.5433        2.1045        1.0
         1113        2679         1          4         1         0.0
1.5906        2.169        1.0
        1113        2696         1          4         1        0.0
1.5906        2.169        1.0
        1113        3415         1          4         1        0.0
1.5906        2.169        1.0
        1113         3432         1          4         1        0.0
1.5906        2.169        1.0
        1113        6635         1          4         1         0.0
1.5906        2.169        1.0
          1113         6652         1         4         1        0.0
1.5906        2.169        1.0
        1113        7187         1         4         1        0.0
1.5906        2.169        1.0
        1113        7204         1          4         1        0.0
1.5906        2.169        1.0
        1113           7279         1         4         1         0.0
    1.5906        2.169        1.0
        1113          7296         1         4         1         0.0
1.5906        2.169        1.0
        1113          7371         1           4         1         0.0
    1.5906        2.169        1.0
        1113        7388         1         4         1        0.0
1.5906        2.169        1.0
        1113         7923         1           4         1         0.0
    1.5906        2.169        1.0
        1113        7940         1         4         1        0.0
1.5906        2.169        1.0
        1113        8199         1         4         1        0.0
1.5906        2.169        1.0
        1113        8216         1          4         1         0.0
1.5906        2.169        1.0
         1123        2679         1          5         1         0.0
1.7985        2.4525        1.0
        1123        2696         1          5         1        0.0
1.7985        2.4525        1.0
        1123        3415         1          5         1        0.0
1.7985        2.4525        1.0
        1123         3432         1          5         1        0.0
1.7985        2.4525        1.0
        1123        6635         1          5         1         0.0
1.7985        2.4525        1.0
          1123         6652         1         5         1        0.0
1.7985        2.4525        1.0
        1123        7187         1         5         1        0.0
1.7985        2.4525        1.0
        1123        7204         1          5         1        0.0
1.7985        2.4525        1.0
        1123           7279         1         5         1         0.0
    1.7985        2.4525        1.0
        1123          7296         1         5         1         0.0
1.7985        2.4525        1.0
        1123          7371         1           5         1         0.0
    1.7985        2.4525        1.0
        1123        7388         1         5         1        0.0
1.7985        2.4525        1.0
        1123         7923         1           5         1         0.0
    1.7985        2.4525        1.0
        1123        7940         1         5         1        0.0
1.7985        2.4525        1.0
        1123        8199         1         5         1        0.0
1.7985        2.4525        1.0
        1123        8216         1          5         1         0.0
1.7985        2.4525        1.0
         1148        2679         1          6         1         0.0
1.5169        2.0685        1.0
        1148        2696         1          6         1        0.0
1.5169        2.0685        1.0
        1148        3415         1          6         1        0.0
1.5169        2.0685        1.0
        1148         3432         1          6         1        0.0
1.5169        2.0685        1.0
        1148        6635         1          6         1         0.0
1.5169        2.0685        1.0
          1148         6652         1         6         1        0.0
1.5169        2.0685        1.0
        1148        7187         1         6         1        0.0
1.5169        2.0685        1.0
        1148        7204         1          6         1        0.0
1.5169        2.0685        1.0
        1148           7279         1         6         1         0.0
    1.5169        2.0685        1.0
        1148          7296         1         6         1         0.0
1.5169        2.0685        1.0
        1148          7371         1           6         1         0.0
    1.5169        2.0685        1.0
        1148        7388         1         6         1        0.0
1.5169        2.0685        1.0
        1148         7923         1           6         1         0.0
    1.5169        2.0685        1.0
        1148        7940         1         6         1        0.0
1.5169        2.0685        1.0
        1148        8199         1         6         1        0.0
1.5169        2.0685        1.0
        1148        8216         1          6         1         0.0
1.5169        2.0685        1.0
         1418        2679         1          7         1         0.0
1.562        2.130        1.0
        1418        2696         1          7         1        0.0
1.562        2.130        1.0
        1418        3415         1          7         1        0.0
1.562        2.130        1.0
        1418         3432         1          7         1        0.0
1.562        2.130        1.0
        1418        6635         1          7         1         0.0
1.562        2.130        1.0
          1418         6652         1         7         1        0.0
1.562        2.130        1.0
        1418        7187         1         7         1        0.0
1.562        2.130        1.0
        1418        7204         1          7         1        0.0
1.562        2.130        1.0
        1418           7279         1         7         1         0.0
    1.562        2.130        1.0
        1418          7296         1         7         1         0.0
1.562        2.130        1.0
        1418          7371         1           7         1         0.0
    1.562        2.130        1.0
        1418        7388         1         7         1        0.0
1.562        2.130        1.0
        1418         7923         1           7         1         0.0
    1.562        2.130        1.0
        1418        7940         1         7         1        0.0
1.562        2.130        1.0
        1418        8199         1         7         1        0.0
1.562        2.130        1.0
        1418        8216         1          7         1         0.0
1.562        2.130        1.0
         1425        2679         1          8         1         0.0
1.5246        2.079        1.0
        1425        2696         1          8         1        0.0
1.5246        2.079        1.0
        1425        3415         1          8         1        0.0
1.5246        2.079        1.0
        1425         3432         1          8         1        0.0
1.5246        2.079        1.0
        1425        6635         1          8         1         0.0
1.5246        2.079        1.0
          1425         6652         1         8         1        0.0
1.5246        2.079        1.0
        1425        7187         1         8         1        0.0
1.5246        2.079        1.0
        1425        7204         1          8         1        0.0
1.5246        2.079        1.0
        1425           7279         1         8         1         0.0
    1.5246        2.079        1.0
        1425          7296         1         8         1         0.0
1.5246        2.079        1.0
        1425          7371         1           8         1         0.0
    1.5246        2.079        1.0
        1425        7388         1         8         1        0.0
1.5246        2.079        1.0
        1425         7923         1           8         1         0.0
    1.5246        2.079        1.0
        1425        7940         1         8         1        0.0
1.5246        2.079        1.0
        1425        8199         1         8         1        0.0
1.5246        2.079        1.0
        1425        8216         1          8         1         0.0
1.5246        2.079        1.0




On Fri, Sep 6, 2013 at 4:23 PM, Rama <ramkishna72 at gmail.com> wrote:

> Hi,
>
> I'm doing NMR restrained MD simulation for protein-Bilayer system to
> satisfy
> NMR experimental data.
>
> Without restraints there is no problem, but if I include distance
> restraints
> in topology file, getting fatal error:
>
> the lipid atom index # was not recognized by using this command:
>  g_grompp -f md.mdp -c npt.gro -t npt.cpt -p topol.top -n index.ndx -o
> md.tpr -maxwarn 5
>
> even in index file protein_DMPC atoms index is there continuously. Any one
> have suggestions to overcome this fatal error. Thanks
>
> /
> [ file beta_disres.itp, line 4 ]:
> Atom index (2679) in distance_restraints out of bounds (1-2513)./
>
> md.mdp file:
> title             =  protein-bilayer  complex
> define          = -DDISRES      ; NMR Distance restraints
> ; Run parameters
> integrator      = md            ; leap-frog integrator
> nsteps          = 2500000       ;
> dt                  = 0.002             ; 2 fs
> ; Output control
> nstxout         = 5000          ; save coordinates every 5 ps
> nstvout         = 5000          ; save velocities every 5 ps
> nstxtcout       = 5000          ; xtc compressed trajectory output every 5
> ps
> nstenergy       = 5000          ; save energies every 5 ps
> nstlog          = 5000          ; update log file every 5 ps
> ; Bond parameters
> continuation    = yes               ; Restarting after NPT
> constraint_algorithm = lincs    ; holonomic constraints
> constraints     = all-bonds             ; all bonds (even heavy atom-H
> bonds)
> constrained
> lincs_iter      = 1                         ; accuracy of LINCS
> lincs_order     = 4                         ; also related to accuracy
> ; Distance restraints parameters
> disre           = simple        ; simple (per-molecule)
> disre_fc        = 1000          ; force constant for distance restraints
> ; Neighborsearching
> ns_type         = grid          ; search neighboring grid cels
> nstlist         = 5                 ; 10 fs
> rlist           = 1.2           ; short-range neighborlist cutoff (in nm)
> rcoulomb        = 1.2           ; short-range electrostatic cutoff (in nm)
> rvdw            = 1.2           ; short-range van der Waals cutoff (in nm)
> ; Electrostatics
> coulombtype     = PME           ; Particle Mesh Ewald for long-range
> electrostatics
> pme_order       = 4                 ; cubic interpolation
> fourierspacing  = 0.16          ; grid spacing for FFT
> ; Temperature coupling is on
> tcoupl          = Nose-Hoover               ; More accurate thermostat
> tc-grps         = Protein     non-protein     non-protein       ; three
> coupling groups -
> more accurate
> tau_t           =       0.5      0.5       0.5          ; time constant,
> in ps
> ref_t           =       303      303       303          ; reference
> temperature, one for
> each group, in K
> ; Pressure coupling is on
> pcoupl          = Parrinello-Rahman         ; Pressure coupling on in NPT
> pcoupltype      = semiisotropic             ; uniform scaling of x-y box
> vectors,
> independent z
> tau_p           = 2.0                           ; time constant, in ps
> ref_p           = 1.0   1.0                     ; reference pressure, x-y,
> z (in bar)
> compressibility = 4.5e-5        4.5e-5  ; isothermal compressibility,
> bar^-1
> ; Periodic boundary conditions
> pbc                 = xyz               ; 3-D PBC
> ; Dispersion correction
> DispCorr        = EnerPres      ; account for cut-off vdW scheme
> ; Velocity generation
> gen_vel         = no            ; Velocity generation is off
> ; COM motion removal
> ; These options remove motion of the protein/bilayer relative to the
> solvent/ions
> nstcomm         = 1
> comm-mode       = Linear
> comm-grps       = protein non-protein
>
> topology file:
>
>
> ; Include Position restraint file
> #ifdef POSRES
> #include "posre.itp"
> #endif
>
> ; Include Distance restraints file
> #ifdef DISRES
> #include "beta_disres.itp"
> #endif
>
> ; Strong position restraints for InflateGRO
> #ifdef STRONG_POSRES
> #include "strong_posre.itp"
> #endif
>
> ; Include DMPC topology
> #include "ramaLJ.ff/dmpcLJ.itp"
>
> ; Include water topology
> #include "ramaLJ.ff/spc.itp"
>
> #ifdef POSRES_WATER
> ; Position restraint for each water oxygen
> [ position_restraints ]
> ;  i funct       fcx        fcy        fcz
>    1    1       1000       1000       1000
> #endif
>
> ; Include topology for ions
> #include "ramaLJ.ff/ions.itp"
>
> [ system ]
> ; Name
> Giving Russians Opium May Alter Current Situation in water
>
> [ molecules ]
> ; Compound        #mols
> Protein                1
> DMPC               125
> SOL                8335
> CL                     8
>
>
>
> --
> View this message in context:
> http://gromacs.5086.x6.nabble.com/NMR-restrained-MD-tp5011025.html
> Sent from the GROMACS Users Forum mailing list archive at Nabble.com.
> --
> gmx-users mailing list    gmx-users at gromacs.org
> http://lists.gromacs.org/mailman/listinfo/gmx-users
> * Please search the archive at
> http://www.gromacs.org/Support/Mailing_Lists/Search before posting!
> * Please don't post (un)subscribe requests to the list. Use the
> www interface or send it to gmx-users-request at gromacs.org.
> * Can't post? Read http://www.gromacs.org/Support/Mailing_Lists
>



More information about the gromacs.org_gmx-users mailing list