[gmx-users] dealing with ATP

Mark Abraham Mark.Abraham at anu.edu.au
Mon Apr 25 12:26:24 CEST 2011


On 4/25/2011 8:05 PM, Sajad Ahrari wrote:
> dear Justin
> it seems that, ADP and ATP are not known to any of gromacs 
> forcefields. but their topologies have been described in amber web 
> site(as follows). should i be adding them to .tpr file of gromacs? if 
> so, how can i access this file and is there any modification being 
> needed in what amber has introduced? (or i have to just do something 
> like copy and paste?)

This is doable, but there's probably no automatic conversion software, 
because nobody's needed to do this so often that writing software was 
worthwhile. So you'll have to spend some time with the AMBER and GROMACS 
documentation, to learn how to do the conversion of the parameters and 
functions between different file formats.

Mark

> all the best
> sajad
>
> topology for ADP:
> 0    0    2
>
> R-ADENOSINE - with diphosphate linker
> adp.db94
>   adp  INT     1
>   CORRECT OMIT DU   BEG
>     0.0
>      1   DUMM  DU    M     0    0    0    0.000    0.000    0.000    0.000
>      2   DUMM  DU    M     1    0    0    1.000    0.000    0.000    0.000
>      3   DUMM  DU    M     2    1    0    1.000
>   90.000    0.000    0.000
>      4   O1B   O3    M     3    2    1    1.000   90.000  180.000   -0.9552
>      5   PB    P     M     4    3    2    1.434   90.000  180.000    1.3672
>      6   O2B   O3    E     5    4    3    1.574  107.490  -79.441   -0.9552
>      7   O3B   O3    E     5    4    3    1.518  118.007  165.990   -0.9552
>      8   O3A   OS    M     5    4    3    1.599  113.374  180.000   -0.6346
>      9   PA    P     M     6    5    4    1.646  130.619   36.624    1.4929
>     10   O1A   O2    E     7    6    5    1.504  109.212  -90.234   -0.9474
>     11   O2A   O2    E     7    6    5    1.526  108.570   40.323   -0.9474
>     12   O5*   OS    M     7    6    5    1.585   97.173  157.726   -0.6579
>     13   C5*   CT    M     8    7    6    1.445  122.292  -66.317    0.0558
>     14   H50   H1    E     9    8    7    1.059  109.484   27.531    0.0679
>     15   H51   H1    E     9    8    7    1.059  109.437  -92.456    0.0679
>
>   16   C4*   CT    M     9    8    7    1.477  113.286  147.538    0.1065
>     17   H40   H1    E    16    9    8    1.059  105.768 -179.178    0.1174
>     18   O4*   OS    S    16   13    9    1.482  106.235  -62.889   -0.3548
>     19   C1*   CT    B    18   16   13    1.391  107.688  128.804    0.0394
>     20   H10   H2    E    19   18   16    1.059  109.468   91.228    0.2007
>     21   N9    N*    S    19   18   16    1.552  105.091 -143.300   -0.0251
>     22   C8    CK    B    21   19   18    1.388  123.797   33.434    0.2006
>     23   H80   H5    E    22   21   19    1.078  131.047   -3.389    0.1553
>     24   N7    NB    S    22   21   19    1.384  108.967  176.598   -0.6073
>     25   C5    CB    S    24   22   21    1.395  103.021    0.702    0.0515
>     26   C6    CA    B    25   24   22    1.412  128.288  178.252    0.7009
>     27   N6    N2    B    26   25   24    1.333  125.907   -3.791   -0.9019
>     28   H60   H     E    27   26
>   25    1.010  120.010    2.829    0.4115
>     29   H61   H     E    27   26   25    1.009  120.014 -177.167    0.4115
>     30   N1    NC    S    26   25   24    1.343  113.319  178.851   -0.7615
>     31   C2    CQ    B    30   26   25    1.340  123.433   -1.664    0.5875
>     32   H2    H5    E    31   30   26    1.077  120.022 -177.875    0.0473
>     33   N3    NC    S    31   30   26    1.377  125.379    2.123   -0.6997
>     34   C4    CB    E    33   31   30    1.300  108.242   -0.035    0.3053
>     35   C3*   CT    M    16   13   12    1.484  117.051   57.581    0.2022
>     36   H30   H1    E    35   16   13    1.059  117.939   24.820    0.0615
>     37   O3*   OH    S    35   16   13    1.407  108.509  149.908   -0.6541
>     38   H3*   HO    E    37   35   16    0.967  109.470  163.254    0.4376
>     39   C2*   CT    M    35   16   13    1.607  102.425  -96.715    0.0670
>     40   H20   H1    E    39   35   16    1.059  115.086   78.119
>    0.0972
>     41   O2*   OH    S    39   35   16    1.398  114.943 -153.294   -0.6139
>     42   H2*   HO    E    41   39   35    0.967  109.456  -41.679    0.4186
>
> IMPROPER
>   C8   C4   N9   C1*
>   C6   H60  N6   H61
>   N7   N9   C8   H80
>   N1   N3   C2   H2
>
>
> topology for ATP:
>
> 0    0    2
>
> R-ADENOSINE - with triphosphate linker
> atp.db94
>   atp  INT     1
>   CORRECT OMIT DU   BEG
>     0.0
>      1   DUMM  DU    M     0    0    0    1.000   90.000  180.000    0.000
>      2   DUMM  DU    M     1    0    0    0.967   90.000  180.000    0.000
>      3   DUMM  DU    M     2    1    0    0.967  109.443  180.000    0.000
>      4   O1G   O3    M     3    2    1    1.086  160.811  148.238   -0.9526
>      5   PG    P     M     4    3    2    1.379   92.848 -159.681    1.2650
>      6   O2G   O3    E     5    4    3    1.417  116.381 -173.072   -0.9526
>      7   O3G
>     O3    E     5    4    3    1.443  104.744   40.954   -0.9526
>      8   O3B   OS    M     5    4    3    1.742   94.444  -63.733   -0.5322
>      9   PB    P     M     8    5    3    1.512  135.464 -125.176    1.3852
>     10   O1B   O2    E     9    8    5    1.415  113.542  -28.935   -0.8894
>     11   O2B   O2    E     9    8    5    1.617  103.881 -164.747   -0.8894
>     12   O3A   OS    M     9    8    5    1.734   96.237   83.499   -0.5689
>     13   PA    P     M    12    9    8    1.516  131.613 -127.461    1.2532
>     14   O1A   O2    E    13   12    9    1.526  115.352  -92.892   -0.8799
>     15   O2A   O2    E    13   12    9    1.410  109.213   53.806   -0.8799
>     16   O5*   OS    M    13   12    9    1.749   97.280  164.349   -0.5987
>     17   C5*   CT    M    16   13   12    1.427  117.355   64.264    0.0558
>     18   H50   H1    E    17   16   13    1.059  109.461  103.970    0.0679
>     19   H51   H1    E    17   16   13
>   1.059  109.491  -16.065    0.0679
>     20   C4*   CT    M    17   16   13    1.446  107.888 -136.043    0.1065
>     21   H40   H1    E    20   17   16    1.059  106.572 -167.965    0.1174
>     22   O4*   OS    S    20   17   16    1.577  105.136  -48.024   -0.3548
>     23   C1*   CT    B    22   20   17    1.562   99.310  148.198    0.0394
>     24   H10   H2    E    23   22   20    1.059  104.667  127.006    0.2007
>     25   N9    N*    S    23   22   20    1.651   99.707 -129.444   -0.0251
>     26   C8    CK    B    25   23   22    1.400  121.683   69.274    0.2006
>     27   H80   H5    E    26   25   23    1.077  128.168    2.532    0.1553
>     28   N7    NB    S    26   25   23    1.327  111.806 -177.463   -0.6073
>     29   C5    CB    S    28   26   25    1.365  104.681    2.256    0.0515
>     30   C6    CA    B    29   28   26    1.448  131.894 -177.019    0.7009
>     31   N6    N2    B    30   29   28    1.312  123.747   -3.485
>   -0.9019
>     32   H60   H     E    31   30   29    1.000  120.000  176.690    0.4115
>     33   H61   H     E    31   30   29    1.000  120.000   -3.310    0.4115
>     34   N1    NC    S    30   29   28    1.362  114.694  173.408   -0.7615
>     35   C2    CQ    B    34   30   29    1.370  122.869    5.034    0.5875
>     36   H2    H5    E    35   34   30    1.078  119.995  174.203    0.0473
>     37   N3    NC    S    35   34   30    1.309  125.548   -5.799   -0.6997
>     38   C4    CB    E    37   35   34    1.340  112.610    1.051    0.3053
>     39   C3*   CT    M    20   17   16    1.539  120.245   66.848    0.2022
>     40   H30   H1    E    39   20   17    1.059  109.025  -37.638    0.0615
>     41   O3*   OH    S    39   20   17    1.390  114.084   86.172   -0.6541
>     42   H3'   HO    E    41   39   20    0.967  109.487   -2.526    0.4376
>     43   C2*   CT    M    39   20   17    1.606  106.034 -155.382    0.0670
>     44   H20   H1
>   E    43   39   20    1.059  123.901  158.202    0.0972
>     45   O2*   OH    S    43   39   20    1.368  107.234  -72.414   -0.6139
>     46   H2'   HO    E    45   43   39    0.967  109.442  -16.862    0.4186
>
> IMPROPER
>   C8   C4   N9   C1*
>   C6   H60  N6   H61
>   N7   N9   C8   H80
>   N1   N3   C2   H2
>   C5   N1   C6   N6
>
> LOOP CLOSING EXPLICIT
>   C1*  C2*
>   C4   C5
>   C4   N9
>
> DONE
> STOP
>
>
>
>
>
> ------------------------------------------------------------------------
> *From:* Justin A. Lemkul <jalemkul at vt.edu>
> *To:* Gromacs Users' List <gmx-users at gromacs.org>
> *Sent:* Sat, April 23, 2011 5:46:24 PM
> *Subject:* Re: [gmx-users] dealing with ATP
>
>
>
> Sajad Ahrari wrote:
> > tnx for your help Justin!
> > but shouldn't the topology of S atom be described for gromacs? 
> unless gromacs may know P atom with the same topology as S. although 
> they may not be the same!?
>
> You're talking about two separate issues - atom types and parameters 
> for molecules.  Yes, most (all?) force fields describe both P and S 
> atoms, but I guarantee none of them have (by default) parameters for 
> some species named "d" that represents ADP-SO4.  You cannot assign 
> parameters from P blindly to S and hope for the best.  That sounds 
> fundamentally wrong to me.
>
> In your original message, it sounded like you wanted to change ADP-SO4 
> into ATP, but perhaps I misunderstood what you intended.  No force 
> field will be able to assign parameters to ADP-SO4, even though the 
> force field may recognize individual atoms, it cannot construct a 
> topology for any arbitrary molecules.
>
> If you need to simulation this ADP-SO4 species, you're in for the long 
> road of parameterization:
>
> http://www.gromacs.org/Documentation/How-tos/Parameterization
>
> Otherwise, change the S atom to P and name the molecule ATP so it will 
> be recognized by whatever force field you choose, after you have 
> verified that the force field can indeed recognize such a species.  
> Otherwise, you're stuck doing parameterization for ATP, too.
>
> -Justin
>
> > regards
> > sajad
> >
> > ------------------------------------------------------------------------
> > *From:* Justin A. Lemkul <jalemkul at vt.edu <mailto:jalemkul at vt.edu>>
> > *To:* Discussion list for GROMACS users <gmx-users at gromacs.org 
> <mailto:gmx-users at gromacs.org>>
> > *Sent:* Sat, April 23, 2011 5:54:58 AM
> > *Subject:* Re: [gmx-users] dealing with ATP
> >
> >
> >
> > Sajad Ahrari wrote:
> > > Dear users
> > > i am working with a protein witch holds a hetero-atom in it's pdb 
> structure. the hetero-atom  is named "d" and stands for "ADP+SO4" (in 
> fact the third phosphate of ATP is being substituted with SO4). i 
> wanted to know if gromacs holds a feature to change "d" into ATP? and 
> if so do
> >
> > No, but you can use a text editor to replace the S atom with P.
> >
> > > i need to introduce ATP for Gromacs or it is known for the program?
> >
> > Some force fields support ATP, some do not.  Check the .rtp files 
> and see what you find.
> >
> > -Justin
> >
> > > i do appreciate your help!
> > > sajad
> > >
> >
> > -- ========================================
> >
> > Justin A. Lemkul
> > Ph.D. Candidate
> > ICTAS Doctoral Scholar
> > MILES-IGERT Trainee
> > Department of Biochemistry
> > Virginia Tech
> > Blacksburg, VA
> > jalemkul[at]vt.edu <http://vt.edu><http://vt.edu/> | (540) 231-9080
> > http://www.bevanlab.biochem.vt.edu/Pages/Personal/justin
> >
> > ========================================
> > -- gmx-users mailing list gmx-users at gromacs.org 
> <mailto:gmx-users at gromacs.org> <mailto:gmx-users at gromacs.org 
> <mailto:gmx-users at gromacs.org>>
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>
> -- ========================================
>
> 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
>
> ========================================
> -- gmx-users mailing list gmx-users at gromacs.org 
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