[gmx-users] gromacs.org_gmx-users Digest, Vol 120, Issue 32

marzieh dehghan dehghanmarzieh at gmail.com
Sat Apr 5 21:10:49 CEST 2014


Hi every body

after glycation insulin by autodock, I wan to run it by GROMACS.

 I would like to know is it possible and correct?

best regards

thanks a lot

marzieh

On 4/5/14, gromacs.org_gmx-users-request at maillist.sys.kth.se
<gromacs.org_gmx-users-request at maillist.sys.kth.se> wrote:
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> Today's Topics:
>
>    1. Re: adding metal-bonding parameters to a force field
>       (Justin Lemkul)
>    2. Re: adding metal-bonding parameters to a force field
>       (Justin Lemkul)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sat, 05 Apr 2014 08:51:47 -0400
> From: Justin Lemkul <jalemkul at vt.edu>
> To: gmx-users at gromacs.org
> Subject: Re: [gmx-users] adding metal-bonding parameters to a force
> 	field
> Message-ID: <533FFC63.70009 at vt.edu>
> Content-Type: text/plain; charset=ISO-8859-9; format=flowed
>
>
>
> On 4/5/14, 2:12 AM, Ahmet y?ld?r?m wrote:
>> You said "You likely need to put the Zn(HOH) complex in the same chain as
>> the protein, and this is probably another reason for creating a Zn(HOH)
>> residue and defining it as protein".
>> How will I do what you say?
>>
>
> Assuming you have a .pdb file, just give it the same chain identifier.
>
> -Justin
>
>>
>> 2014-04-05 7:13 GMT+03:00 Justin Lemkul <jalemkul at vt.edu>:
>>
>>>
>>>
>>> On 4/4/14, 11:58 PM, Ahmet y?ld?r?m wrote:
>>>
>>>> Hi,
>>>>
>>>> The distance I have set in specbond.dat must correct (req from Table 1).
>>>> I
>>>> get them from literature.Please see this link:
>>>>
>>>> http://www.google.com.tr/url?sa=t&rct=j&q=&esrc=s&source=
>>>> web&cd=1&cad=rja&uact=8&ved=0CC0QFjAA&url=http%3A%2F%
>>>> 2Fpubmedcentralcanada.ca%2Fpicrender.cgi%3Fartinstid%
>>>> 3D1482211%26blobname%3DNIHMS61946-supplement-File002.pdf&ei=GXk_
>>>> U7XNG7GIyAOMvoBw&usg=AFQjCNGUfMCQZYegoRpLGg5D9GjpFsPCxQ&sig2=
>>>> MtbMKLDYZBbb6ACkGJjyMA&bvm=bv.64125504,d.bGQ
>>>>
>>>>
>>> You've posted this several times.  I understand the source of the
>>> parameters. The problem is that equilibrium bond lengths and
>>> specbond.dat
>>> distances are not the same.  Please see http://www.gromacs.org/
>>> Documentation/File_Formats/specbond.dat - if your input coordinates do
>>> not place the two atoms within 10% of the distance specified in
>>> specbond.dat, no bond is assigned.  The value in specbond.dat has zero
>>> bearing on what the bond length should be.
>>>
>>>
>>>   The His-Zn bonds are correctly generated (req from Table 1). Histidine
>>>> nitrogen atoms (NE2 atoms in His94 and His96, ND1 atom in His119) are
>>>> bound
>>>> to the Zn+2 ion. In addition Zn is bound to a water molecule.
>>>>
>>>> You said "create a residue that contains Zn(HOH)". Do I need it? I have
>>>> already charge of Zn and each atom of HOH.
>>>>
>>>>
>>> I think it is more straightforward, but you can approach it however you
>>> like.
>>>
>>>
>>>   I am making these corrections in the right place. I am using Gromacs
>>> 4.5.5
>>>> on Ubuntu 12.1. The modified forcefield is in /usr/share/gromacs/top.
>>>>
>>>>
>>> Well, there's still something wrong, which is weird because the
>>> modifications are straightforward.  But one thing is true - grompp
>>> doesn't
>>> throw fatal errors for no reason.
>>>
>>>
>>>   Everything seems normal after pdb2gmx command:
>>>> ..
>>>> Identified residue HIS3 as a starting terminus.
>>>> Identified residue LYS261 as a ending terminus.
>>>> 11 out of 11 lines of specbond.dat converted successfully
>>>> Special Atom Distance matrix:
>>>> ....
>>>> Identified residue HIS3 as a starting terminus.
>>>> Identified residue LYS261 as a ending terminus.
>>>> 11 out of 11 lines of specbond.dat converted successfully
>>>> Special Atom Distance matrix:
>>>>                       HIS3    HIS3    HIS4    HIS4   HIS10   HIS10
>>>> HIS15
>>>>                       ND18   NE210   ND118   NE220   ND170   NE273
>>>> ND1108
>>>>       HIS3   NE210   0.214
>>>>       HIS4   ND118   0.719   0.694
>>>>       HIS4   NE220   0.882   0.825   0.215
>>>>      HIS10   ND170   1.247   1.294   1.536   1.561
>>>>      HIS10   NE273   1.344   1.361   1.634   1.642   0.212
>>>>      HIS15  ND1108   1.232   1.341   1.321   1.360   0.664   0.858
>>>>      HIS15  NE2111   1.319   1.400   1.400   1.413   0.542   0.711
>>>> 0.216
>>>>      HIS17  ND1132   1.710   1.859   1.611   1.666   1.483   1.679
>>>> 0.826
>>>>      HIS17  NE2135   1.651   1.792   1.595   1.643   1.292   1.485
>>>> 0.645
>>>>      HIS36  ND1288   4.357   4.370   3.902   3.761   3.751   3.787
>>>> 3.426
>>>>      HIS36  NE2291   4.538   4.546   4.072   3.926   3.940   3.971
>>>> 3.625
>>>>      HIS64  ND1508   1.631   1.554   0.983   0.777   1.945   1.991
>>>> 1.718
>>>>      HIS64  NE2514   1.533   1.454   0.855   0.657   1.989   2.043
>>>> 1.756
>>>>      HIS94  ND1751   2.349   2.275   1.669   1.476   2.593   2.632
>>>> 2.320
>>>>      HIS94  NE2754   2.302   2.239   1.638   1.446   2.456   2.499
>>>> 2.168
>>>>      HIS96  ND1772   2.136   2.078   1.563   1.370   2.064   2.093
>>>> 1.823
>>>>      HIS96  NE2775   2.241   2.188   1.626   1.435   2.244   2.282
>>>> 1.964
>>>>     HIS107  ND1854   2.863   2.849   2.282   2.122   2.658   2.714
>>>> 2.285
>>>>     HIS107  NE2857   2.888   2.890   2.310   2.165   2.697   2.769
>>>> 2.277
>>>>     HIS119  ND1952   2.494   2.449   1.853   1.671   2.516   2.564
>>>> 2.194
>>>>     HIS119  NE2955   2.656   2.616   2.033   1.854   2.593   2.637
>>>> 2.267
>>>>     HIS122  ND1977   3.202   3.156   2.492   2.333   3.468   3.531
>>>> 3.088
>>>>     HIS122  NE2980   3.347   3.290   2.635   2.470   3.620   3.674
>>>> 3.264
>>>>     CYS206  SG1623   2.512   2.539   1.855   1.775   2.867   2.991
>>>> 2.343
>>>>     MET241  SD1909   1.925   1.785   1.463   1.255   2.023   1.986
>>>> 2.036
>>>>                      HIS15   HIS17   HIS17   HIS36   HIS36   HIS64
>>>> HIS64
>>>>                     NE2111  ND1132  NE2135  ND1288  NE2291  ND1508
>>>> NE2514
>>>>      HIS17  ND1132   0.988
>>>>      HIS17  NE2135   0.794   0.214
>>>>      HIS36  ND1288   3.349   3.219   3.202
>>>>      HIS36  NE2291   3.545   3.426   3.409   0.214
>>>>      HIS64  ND1508   1.712   1.928   1.909   3.206   3.349
>>>>      HIS64  NE2514   1.770   1.953   1.946   3.393   3.537   0.213
>>>>      HIS94  ND1751   2.306   2.383   2.392   2.897   3.008   0.728
>>>> 0.830
>>>>      HIS94  NE2754   2.148   2.222   2.225   2.724   2.843   0.693
>>>> 0.835
>>>>      HIS96  ND1772   1.767   1.980   1.941   2.549   2.686   0.692
>>>> 0.899
>>>>      HIS96  NE2775   1.924   2.048   2.031   2.530   2.660   0.717
>>>> 0.905
>>>>     HIS107  ND1854   2.246   2.158   2.164   1.771   1.903   1.494
>>>> 1.665
>>>>     HIS107  NE2857   2.255   2.072   2.095   1.744   1.886   1.582
>>>> 1.739
>>>>     HIS119  ND1952   2.166   2.184   2.189   2.391   2.511   0.952
>>>> 1.112
>>>>     HIS119  NE2955   2.229   2.236   2.237   2.178   2.295   1.147
>>>> 1.317
>>>>     HIS122  ND1977   3.099   2.924   2.986   2.774   2.844   1.669
>>>> 1.727
>>>>     HIS122  NE2980   3.268   3.128   3.184   2.858   2.914   1.789
>>>> 1.847
>>>>     CYS206  SG1623   2.425   1.975   2.093   2.940   3.078   1.436
>>>> 1.431
>>>>     MET241  SD1909   1.953   2.463   2.387   3.327   3.448   0.777
>>>> 0.894
>>>>                      HIS94   HIS94   HIS96   HIS96  HIS107  HIS107
>>>> HIS119
>>>>                     ND1751  NE2754  ND1772  NE2775  ND1854  NE2857
>>>> ND1952
>>>>      HIS94  NE2754   0.221
>>>>      HIS96  ND1772   0.694   0.502
>>>>      HIS96  NE2775   0.530   0.317   0.216
>>>>     HIS107  ND1854   1.161   0.977   0.909   0.817
>>>>     HIS107  NE2857   1.274   1.093   1.050   0.950   0.221
>>>>     HIS119  ND1952   0.522   0.337   0.507   0.306   0.642   0.770
>>>>     HIS119  NE2955   0.723   0.549   0.607   0.452   0.452   0.610
>>>> 0.218
>>>>     HIS122  ND1977   0.995   1.067   1.510   1.296   1.309   1.338
>>>> 1.033
>>>>     HIS122  NE2980   1.088   1.183   1.629   1.421   1.451   1.499
>>>> 1.166
>>>>     CYS206  SG1623   1.250   1.213   1.491   1.329   1.390   1.289
>>>> 1.197
>>>>     MET241  SD1909   1.070   1.062   0.908   1.023   1.787   1.947
>>>> 1.283
>>>>                     HIS119  HIS122  HIS122  CYS206
>>>>                     NE2955  ND1977  NE2980  SG1623
>>>>     HIS122  ND1977   1.073
>>>>     HIS122  NE2980   1.200   0.219
>>>>     CYS206  SG1623   1.294   1.177   1.388
>>>>     MET241  SD1909   1.421   2.042   2.097   2.143
>>>>
>>>
>>> Note from the above output that no bond is being created between the Zn
>>> and any His residue.  This is likely a consequence of the chains being
>>> processed separately.  You likely need to put the Zn(HOH) complex in the
>>> same chain as the protein, and this is probably another reason for
>>> creating
>>> a Zn(HOH) residue and defining it as protein.  Doing so circumvents all
>>> of
>>> these quirks.
>>>
>>> -Justin
>>>
>>>
>>>   Opening force field file
>>>> /usr/share/gromacs/top/amber99sb-ildn.ff/aminoacids.arn
>>>> Opening force field file
>>>> /usr/share/gromacs/top/amber99sb-ildn.ff/dna.arn
>>>> Opening force field file
>>>> /usr/share/gromacs/top/amber99sb-ildn.ff/rna.arn
>>>> Checking for duplicate atoms....
>>>> Now there are 2059 atoms. Deleted 21 duplicates.
>>>> Now there are 258 residues with 4071 atoms
>>>> Chain time...
>>>>
>>>> Back Off! I just backed up protein_Protein_chain_A.itp to
>>>> ./#protein_Protein_chain_A.itp.7#
>>>> Making bonds...
>>>> Number of bonds was 4134, now 4133
>>>> Generating angles, dihedrals and pairs...
>>>> Before cleaning: 10879 pairs
>>>> Before cleaning: 11505 dihedrals
>>>> Keeping all generated dihedrals
>>>> Making cmap torsions...There are 11505 dihedrals,  834 impropers, 7491
>>>> angles
>>>>             10798 pairs,     4133 bonds and     0 virtual sites
>>>> Total mass 29026.976 a.m.u.
>>>> Total charge -1.000 e
>>>> Writing topology
>>>>
>>>> Back Off! I just backed up posre_Protein_chain_A.itp to
>>>> ./#posre_Protein_chain_A.itp.7#
>>>> Processing chain 2 'A' (2 atoms, 2 residues)
>>>> Warning: Starting residue ZN262 in chain not identified as
>>>> Protein/RNA/DNA.
>>>> Warning: Starting residue OWZ1001 in chain not identified as
>>>> Protein/RNA/DNA.
>>>> Problem with chain definition, or missing terminal residues.
>>>> This chain does not appear to contain a recognized chain molecule.
>>>> If this is incorrect, you can edit residuetypes.dat to modify the
>>>> behavior.
>>>> 11 out of 11 lines of specbond.dat converted successfully
>>>> Special Atom Distance matrix:
>>>>                      ZN262
>>>>                        ZN1
>>>>    OWZ1001     OZ2   0.188
>>>> Opening force field file
>>>> /usr/share/gromacs/top/amber99sb-ildn.ff/aminoacids.arn
>>>> Opening force field file
>>>> /usr/share/gromacs/top/amber99sb-ildn.ff/dna.arn
>>>> Opening force field file
>>>> /usr/share/gromacs/top/amber99sb-ildn.ff/rna.arn
>>>> Checking for duplicate atoms....
>>>> Now there are 2 residues with 4 atoms
>>>> Chain time...
>>>>
>>>> Back Off! I just backed up protein_Ion_chain_A2.itp to
>>>> ./#protein_Ion_chain_A2.itp.7#
>>>> Making bonds...
>>>> Number of bonds was 2, now 2
>>>> Generating angles, dihedrals and pairs...
>>>> Making cmap torsions...There are    0 dihedrals,    0 impropers,    1
>>>> angles
>>>>                0 pairs,        2 bonds and     0 virtual sites
>>>> Total mass 83.416 a.m.u.
>>>> Total charge 2.118 e
>>>> Writing topology
>>>>
>>>> Back Off! I just backed up posre_Ion_chain_A2.itp to
>>>> ./#posre_Ion_chain_A2.itp.7#
>>>> Processing chain 3 (310 atoms, 310 residues)
>>>> Problem with chain definition, or missing terminal residues.
>>>> This chain does not appear to contain a recognized chain molecule.
>>>> If this is incorrect, you can edit residuetypes.dat to modify the
>>>> behavior.
>>>> 11 out of 11 lines of specbond.dat converted successfully
>>>> Opening force field file
>>>> /usr/share/gromacs/top/amber99sb-ildn.ff/aminoacids.arn
>>>> Opening force field file
>>>> /usr/share/gromacs/top/amber99sb-ildn.ff/dna.arn
>>>> Opening force field file
>>>> /usr/share/gromacs/top/amber99sb-ildn.ff/rna.arn
>>>> Checking for duplicate atoms....
>>>> Now there are 310 residues with 930 atoms
>>>> Making bonds...
>>>> Number of bonds was 620, now 620
>>>> Generating angles, dihedrals and pairs...
>>>> Making cmap torsions...There are    0 dihedrals,    0 impropers,  310
>>>> angles
>>>>                0 pairs,      620 bonds and     0 virtual sites
>>>> Total mass 5584.960 a.m.u.
>>>> Total charge 0.000 e
>>>> Including chain 1 in system: 4071 atoms 258 residues
>>>> Including chain 2 in system: 4 atoms 2 residues
>>>> Including chain 3 in system: 930 atoms 310 residues
>>>> Now there are 5005 atoms and 570 residues
>>>> Total mass in system 34695.352 a.m.u.
>>>> Total charge in system 1.118 e
>>>> ..
>>>>
>>>>
>>>>
>>>>
>>>> 2014-04-04 23:28 GMT+03:00 Justin Lemkul <jalemkul at vt.edu>:
>>>>
>>>>
>>>>>
>>>>> On 4/4/14, 1:46 PM, Ahmet y?ld?r?m wrote:
>>>>>
>>>>>   Dear Justin,
>>>>>>
>>>>>> These parameters are present in literature. I think these
>>>>>> bonds/parameters
>>>>>> are correctly generated. You said "The previous topology output
>>>>>> suggests
>>>>>> not, because ZN is not renamed to ZNW".  I do not know what to do.
>>>>>>
>>>>>>
>>>>>>   Probably because the distance you have set in specbond.dat is
>>>>> incorrect.
>>>>>    I'll ask again - are the His-Zn bonds correctly generated?  If not,
>>>>> that's
>>>>> your problem.  If they are, we'll have to do more digging.  You can
>>>>> avoid
>>>>> the whole Zn-renaming and charge issue if you do as I suggested before
>>>>> and
>>>>> create a residue that contains Zn(HOH), not just ZN and then a
>>>>> separate
>>>>> residue for the water bound to it.  Treat it as its own entity.
>>>>>
>>>>>
>>>>>    I added the OZ-HZ bond in ffbonded.itp. Unfortunately I get the
>>>>> same
>>>>>
>>>>>> errors:
>>>>>>
>>>>>> ERROR 1 [file protein_Ion_chain_A2.itp, line 33]:
>>>>>>      No default Bond types
>>>>>> ERROR 2 [file protein_Ion_chain_A2.itp, line 34]:
>>>>>>      No default Bond types
>>>>>>
>>>>>> ffbonded.itp:
>>>>>>      Zn NA         1    0.20500   16744.0 ;modified
>>>>>>      Zn NB         1    0.20500   16744.0 ;modified
>>>>>>      Zn OZ         1    0.23000   16744.0 ;modified
>>>>>>      OZ HZ         1    0.09572   221682.2 ;modified
>>>>>>
>>>>>>
>>>>>>   Are you making these corrections in the right place?  Does your
>>>>>> .top
>>>>> call
>>>>> your modified force field?  Are you modifying files in $GMXLIB or in
>>>>> the
>>>>> working directory?
>>>>>
>>>>>
>>>>> -Justin
>>>>>
>>>>> --
>>>>> ==================================================
>>>>>
>>>>> Justin A. Lemkul, Ph.D.
>>>>> Ruth L. Kirschstein NRSA Postdoctoral Fellow
>>>>>
>>>>> Department of Pharmaceutical Sciences
>>>>> School of Pharmacy
>>>>> Health Sciences Facility II, Room 601
>>>>> University of Maryland, Baltimore
>>>>> 20 Penn St.
>>>>> Baltimore, MD 21201
>>>>>
>>>>> jalemkul at outerbanks.umaryland.edu | (410) 706-7441
>>>>> http://mackerell.umaryland.edu/~jalemkul
>>>>>
>>>>> ==================================================
>>>>> --
>>>>> 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-request at gromacs.org.
>>>>>
>>>>>
>>>>
>>>>
>>>>
>>> --
>>> ==================================================
>>>
>>> Justin A. Lemkul, Ph.D.
>>> Ruth L. Kirschstein NRSA Postdoctoral Fellow
>>>
>>> Department of Pharmaceutical Sciences
>>> School of Pharmacy
>>> Health Sciences Facility II, Room 601
>>> University of Maryland, Baltimore
>>> 20 Penn St.
>>> Baltimore, MD 21201
>>>
>>> jalemkul at outerbanks.umaryland.edu | (410) 706-7441
>>> http://mackerell.umaryland.edu/~jalemkul
>>>
>>> ==================================================
>>> --
>>> 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-request at gromacs.org.
>>>
>>
>>
>>
>
> --
> ==================================================
>
> Justin A. Lemkul, Ph.D.
> Ruth L. Kirschstein NRSA Postdoctoral Fellow
>
> Department of Pharmaceutical Sciences
> School of Pharmacy
> Health Sciences Facility II, Room 601
> University of Maryland, Baltimore
> 20 Penn St.
> Baltimore, MD 21201
>
> jalemkul at outerbanks.umaryland.edu | (410) 706-7441
> http://mackerell.umaryland.edu/~jalemkul
>
> ==================================================
>
>
> ------------------------------
>
> Message: 2
> Date: Sat, 05 Apr 2014 08:52:42 -0400
> From: Justin Lemkul <jalemkul at vt.edu>
> To: gmx-users at gromacs.org
> Subject: Re: [gmx-users] adding metal-bonding parameters to a force
> 	field
> Message-ID: <533FFC9A.2020706 at vt.edu>
> Content-Type: text/plain; charset=ISO-8859-9; format=flowed
>
>
>
> On 4/5/14, 2:43 AM, Ahmet y?ld?r?m wrote:
>> How will I define ZN(HOH) in aminoacids.hdb?
>>
>
> It's the same as water.
>
> -Justin
>
>>
>> 2014-04-05 9:12 GMT+03:00 Ahmet y?ld?r?m <ahmedo047 at gmail.com>:
>>
>>> You said "You likely need to put the Zn(HOH) complex in the same chain
>>> as
>>> the protein, and this is probably another reason for creating a Zn(HOH)
>>> residue and defining it as protein".
>>> How will I do what you say?
>>>
>>>
>>> 2014-04-05 7:13 GMT+03:00 Justin Lemkul <jalemkul at vt.edu>:
>>>
>>>
>>>>
>>>> On 4/4/14, 11:58 PM, Ahmet y?ld?r?m wrote:
>>>>
>>>>> Hi,
>>>>>
>>>>> The distance I have set in specbond.dat must correct (req from Table
>>>>> 1).
>>>>> I
>>>>> get them from literature.Please see this link:
>>>>>
>>>>> http://www.google.com.tr/url?sa=t&rct=j&q=&esrc=s&source=
>>>>> web&cd=1&cad=rja&uact=8&ved=0CC0QFjAA&url=http%3A%2F%
>>>>> 2Fpubmedcentralcanada.ca%2Fpicrender.cgi%3Fartinstid%
>>>>> 3D1482211%26blobname%3DNIHMS61946-supplement-File002.pdf&ei=GXk_
>>>>> U7XNG7GIyAOMvoBw&usg=AFQjCNGUfMCQZYegoRpLGg5D9GjpFsPCxQ&sig2=
>>>>> MtbMKLDYZBbb6ACkGJjyMA&bvm=bv.64125504,d.bGQ
>>>>>
>>>>>
>>>> You've posted this several times.  I understand the source of the
>>>> parameters. The problem is that equilibrium bond lengths and
>>>> specbond.dat
>>>> distances are not the same.  Please see http://www.gromacs.org/
>>>> Documentation/File_Formats/specbond.dat - if your input coordinates do
>>>> not place the two atoms within 10% of the distance specified in
>>>> specbond.dat, no bond is assigned.  The value in specbond.dat has zero
>>>> bearing on what the bond length should be.
>>>>
>>>>
>>>>   The His-Zn bonds are correctly generated (req from Table 1).
>>>> Histidine
>>>>> nitrogen atoms (NE2 atoms in His94 and His96, ND1 atom in His119) are
>>>>> bound
>>>>> to the Zn+2 ion. In addition Zn is bound to a water molecule.
>>>>>
>>>>> You said "create a residue that contains Zn(HOH)". Do I need it? I
>>>>> have
>>>>> already charge of Zn and each atom of HOH.
>>>>>
>>>>>
>>>> I think it is more straightforward, but you can approach it however you
>>>> like.
>>>>
>>>>
>>>>   I am making these corrections in the right place. I am using Gromacs
>>>>> 4.5.5
>>>>> on Ubuntu 12.1. The modified forcefield is in /usr/share/gromacs/top.
>>>>>
>>>>>
>>>> Well, there's still something wrong, which is weird because the
>>>> modifications are straightforward.  But one thing is true - grompp
>>>> doesn't
>>>> throw fatal errors for no reason.
>>>>
>>>>
>>>>   Everything seems normal after pdb2gmx command:
>>>>> ..
>>>>> Identified residue HIS3 as a starting terminus.
>>>>> Identified residue LYS261 as a ending terminus.
>>>>> 11 out of 11 lines of specbond.dat converted successfully
>>>>> Special Atom Distance matrix:
>>>>> ....
>>>>> Identified residue HIS3 as a starting terminus.
>>>>> Identified residue LYS261 as a ending terminus.
>>>>> 11 out of 11 lines of specbond.dat converted successfully
>>>>> Special Atom Distance matrix:
>>>>>                       HIS3    HIS3    HIS4    HIS4   HIS10   HIS10
>>>>> HIS15
>>>>>                       ND18   NE210   ND118   NE220   ND170   NE273
>>>>> ND1108
>>>>>       HIS3   NE210   0.214
>>>>>       HIS4   ND118   0.719   0.694
>>>>>       HIS4   NE220   0.882   0.825   0.215
>>>>>      HIS10   ND170   1.247   1.294   1.536   1.561
>>>>>      HIS10   NE273   1.344   1.361   1.634   1.642   0.212
>>>>>      HIS15  ND1108   1.232   1.341   1.321   1.360   0.664   0.858
>>>>>      HIS15  NE2111   1.319   1.400   1.400   1.413   0.542   0.711
>>>>> 0.216
>>>>>      HIS17  ND1132   1.710   1.859   1.611   1.666   1.483   1.679
>>>>> 0.826
>>>>>      HIS17  NE2135   1.651   1.792   1.595   1.643   1.292   1.485
>>>>> 0.645
>>>>>      HIS36  ND1288   4.357   4.370   3.902   3.761   3.751   3.787
>>>>> 3.426
>>>>>      HIS36  NE2291   4.538   4.546   4.072   3.926   3.940   3.971
>>>>> 3.625
>>>>>      HIS64  ND1508   1.631   1.554   0.983   0.777   1.945   1.991
>>>>> 1.718
>>>>>      HIS64  NE2514   1.533   1.454   0.855   0.657   1.989   2.043
>>>>> 1.756
>>>>>      HIS94  ND1751   2.349   2.275   1.669   1.476   2.593   2.632
>>>>> 2.320
>>>>>      HIS94  NE2754   2.302   2.239   1.638   1.446   2.456   2.499
>>>>> 2.168
>>>>>      HIS96  ND1772   2.136   2.078   1.563   1.370   2.064   2.093
>>>>> 1.823
>>>>>      HIS96  NE2775   2.241   2.188   1.626   1.435   2.244   2.282
>>>>> 1.964
>>>>>     HIS107  ND1854   2.863   2.849   2.282   2.122   2.658   2.714
>>>>> 2.285
>>>>>     HIS107  NE2857   2.888   2.890   2.310   2.165   2.697   2.769
>>>>> 2.277
>>>>>     HIS119  ND1952   2.494   2.449   1.853   1.671   2.516   2.564
>>>>> 2.194
>>>>>     HIS119  NE2955   2.656   2.616   2.033   1.854   2.593   2.637
>>>>> 2.267
>>>>>     HIS122  ND1977   3.202   3.156   2.492   2.333   3.468   3.531
>>>>> 3.088
>>>>>     HIS122  NE2980   3.347   3.290   2.635   2.470   3.620   3.674
>>>>> 3.264
>>>>>     CYS206  SG1623   2.512   2.539   1.855   1.775   2.867   2.991
>>>>> 2.343
>>>>>     MET241  SD1909   1.925   1.785   1.463   1.255   2.023   1.986
>>>>> 2.036
>>>>>                      HIS15   HIS17   HIS17   HIS36   HIS36   HIS64
>>>>> HIS64
>>>>>                     NE2111  ND1132  NE2135  ND1288  NE2291  ND1508
>>>>> NE2514
>>>>>      HIS17  ND1132   0.988
>>>>>      HIS17  NE2135   0.794   0.214
>>>>>      HIS36  ND1288   3.349   3.219   3.202
>>>>>      HIS36  NE2291   3.545   3.426   3.409   0.214
>>>>>      HIS64  ND1508   1.712   1.928   1.909   3.206   3.349
>>>>>      HIS64  NE2514   1.770   1.953   1.946   3.393   3.537   0.213
>>>>>      HIS94  ND1751   2.306   2.383   2.392   2.897   3.008   0.728
>>>>> 0.830
>>>>>      HIS94  NE2754   2.148   2.222   2.225   2.724   2.843   0.693
>>>>> 0.835
>>>>>      HIS96  ND1772   1.767   1.980   1.941   2.549   2.686   0.692
>>>>> 0.899
>>>>>      HIS96  NE2775   1.924   2.048   2.031   2.530   2.660   0.717
>>>>> 0.905
>>>>>     HIS107  ND1854   2.246   2.158   2.164   1.771   1.903   1.494
>>>>> 1.665
>>>>>     HIS107  NE2857   2.255   2.072   2.095   1.744   1.886   1.582
>>>>> 1.739
>>>>>     HIS119  ND1952   2.166   2.184   2.189   2.391   2.511   0.952
>>>>> 1.112
>>>>>     HIS119  NE2955   2.229   2.236   2.237   2.178   2.295   1.147
>>>>> 1.317
>>>>>     HIS122  ND1977   3.099   2.924   2.986   2.774   2.844   1.669
>>>>> 1.727
>>>>>     HIS122  NE2980   3.268   3.128   3.184   2.858   2.914   1.789
>>>>> 1.847
>>>>>     CYS206  SG1623   2.425   1.975   2.093   2.940   3.078   1.436
>>>>> 1.431
>>>>>     MET241  SD1909   1.953   2.463   2.387   3.327   3.448   0.777
>>>>> 0.894
>>>>>                      HIS94   HIS94   HIS96   HIS96  HIS107  HIS107
>>>>> HIS119
>>>>>                     ND1751  NE2754  ND1772  NE2775  ND1854  NE2857
>>>>> ND1952
>>>>>      HIS94  NE2754   0.221
>>>>>      HIS96  ND1772   0.694   0.502
>>>>>      HIS96  NE2775   0.530   0.317   0.216
>>>>>     HIS107  ND1854   1.161   0.977   0.909   0.817
>>>>>     HIS107  NE2857   1.274   1.093   1.050   0.950   0.221
>>>>>     HIS119  ND1952   0.522   0.337   0.507   0.306   0.642   0.770
>>>>>     HIS119  NE2955   0.723   0.549   0.607   0.452   0.452   0.610
>>>>> 0.218
>>>>>     HIS122  ND1977   0.995   1.067   1.510   1.296   1.309   1.338
>>>>> 1.033
>>>>>     HIS122  NE2980   1.088   1.183   1.629   1.421   1.451   1.499
>>>>> 1.166
>>>>>     CYS206  SG1623   1.250   1.213   1.491   1.329   1.390   1.289
>>>>> 1.197
>>>>>     MET241  SD1909   1.070   1.062   0.908   1.023   1.787   1.947
>>>>> 1.283
>>>>>                     HIS119  HIS122  HIS122  CYS206
>>>>>                     NE2955  ND1977  NE2980  SG1623
>>>>>     HIS122  ND1977   1.073
>>>>>     HIS122  NE2980   1.200   0.219
>>>>>     CYS206  SG1623   1.294   1.177   1.388
>>>>>     MET241  SD1909   1.421   2.042   2.097   2.143
>>>>>
>>>>
>>>> Note from the above output that no bond is being created between the Zn
>>>> and any His residue.  This is likely a consequence of the chains being
>>>> processed separately.  You likely need to put the Zn(HOH) complex in
>>>> the
>>>> same chain as the protein, and this is probably another reason for
>>>> creating
>>>> a Zn(HOH) residue and defining it as protein.  Doing so circumvents all
>>>> of
>>>> these quirks.
>>>>
>>>> -Justin
>>>>
>>>>
>>>>   Opening force field file
>>>>> /usr/share/gromacs/top/amber99sb-ildn.ff/aminoacids.arn
>>>>> Opening force field file /usr/share/gromacs/top/
>>>>> amber99sb-ildn.ff/dna.arn
>>>>> Opening force field file /usr/share/gromacs/top/
>>>>> amber99sb-ildn.ff/rna.arn
>>>>> Checking for duplicate atoms....
>>>>> Now there are 2059 atoms. Deleted 21 duplicates.
>>>>> Now there are 258 residues with 4071 atoms
>>>>> Chain time...
>>>>>
>>>>> Back Off! I just backed up protein_Protein_chain_A.itp to
>>>>> ./#protein_Protein_chain_A.itp.7#
>>>>> Making bonds...
>>>>> Number of bonds was 4134, now 4133
>>>>> Generating angles, dihedrals and pairs...
>>>>> Before cleaning: 10879 pairs
>>>>> Before cleaning: 11505 dihedrals
>>>>> Keeping all generated dihedrals
>>>>> Making cmap torsions...There are 11505 dihedrals,  834 impropers, 7491
>>>>> angles
>>>>>             10798 pairs,     4133 bonds and     0 virtual sites
>>>>> Total mass 29026.976 a.m.u.
>>>>> Total charge -1.000 e
>>>>> Writing topology
>>>>>
>>>>> Back Off! I just backed up posre_Protein_chain_A.itp to
>>>>> ./#posre_Protein_chain_A.itp.7#
>>>>> Processing chain 2 'A' (2 atoms, 2 residues)
>>>>> Warning: Starting residue ZN262 in chain not identified as
>>>>> Protein/RNA/DNA.
>>>>> Warning: Starting residue OWZ1001 in chain not identified as
>>>>> Protein/RNA/DNA.
>>>>> Problem with chain definition, or missing terminal residues.
>>>>> This chain does not appear to contain a recognized chain molecule.
>>>>> If this is incorrect, you can edit residuetypes.dat to modify the
>>>>> behavior.
>>>>> 11 out of 11 lines of specbond.dat converted successfully
>>>>> Special Atom Distance matrix:
>>>>>                      ZN262
>>>>>                        ZN1
>>>>>    OWZ1001     OZ2   0.188
>>>>> Opening force field file
>>>>> /usr/share/gromacs/top/amber99sb-ildn.ff/aminoacids.arn
>>>>> Opening force field file /usr/share/gromacs/top/
>>>>> amber99sb-ildn.ff/dna.arn
>>>>> Opening force field file /usr/share/gromacs/top/
>>>>> amber99sb-ildn.ff/rna.arn
>>>>> Checking for duplicate atoms....
>>>>> Now there are 2 residues with 4 atoms
>>>>> Chain time...
>>>>>
>>>>> Back Off! I just backed up protein_Ion_chain_A2.itp to
>>>>> ./#protein_Ion_chain_A2.itp.7#
>>>>> Making bonds...
>>>>> Number of bonds was 2, now 2
>>>>> Generating angles, dihedrals and pairs...
>>>>> Making cmap torsions...There are    0 dihedrals,    0 impropers,    1
>>>>> angles
>>>>>                0 pairs,        2 bonds and     0 virtual sites
>>>>> Total mass 83.416 a.m.u.
>>>>> Total charge 2.118 e
>>>>> Writing topology
>>>>>
>>>>> Back Off! I just backed up posre_Ion_chain_A2.itp to
>>>>> ./#posre_Ion_chain_A2.itp.7#
>>>>> Processing chain 3 (310 atoms, 310 residues)
>>>>> Problem with chain definition, or missing terminal residues.
>>>>> This chain does not appear to contain a recognized chain molecule.
>>>>> If this is incorrect, you can edit residuetypes.dat to modify the
>>>>> behavior.
>>>>> 11 out of 11 lines of specbond.dat converted successfully
>>>>> Opening force field file
>>>>> /usr/share/gromacs/top/amber99sb-ildn.ff/aminoacids.arn
>>>>> Opening force field file /usr/share/gromacs/top/
>>>>> amber99sb-ildn.ff/dna.arn
>>>>> Opening force field file /usr/share/gromacs/top/
>>>>> amber99sb-ildn.ff/rna.arn
>>>>> Checking for duplicate atoms....
>>>>> Now there are 310 residues with 930 atoms
>>>>> Making bonds...
>>>>> Number of bonds was 620, now 620
>>>>> Generating angles, dihedrals and pairs...
>>>>> Making cmap torsions...There are    0 dihedrals,    0 impropers,  310
>>>>> angles
>>>>>                0 pairs,      620 bonds and     0 virtual sites
>>>>> Total mass 5584.960 a.m.u.
>>>>> Total charge 0.000 e
>>>>> Including chain 1 in system: 4071 atoms 258 residues
>>>>> Including chain 2 in system: 4 atoms 2 residues
>>>>> Including chain 3 in system: 930 atoms 310 residues
>>>>> Now there are 5005 atoms and 570 residues
>>>>> Total mass in system 34695.352 a.m.u.
>>>>> Total charge in system 1.118 e
>>>>> ..
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> 2014-04-04 23:28 GMT+03:00 Justin Lemkul <jalemkul at vt.edu>:
>>>>>
>>>>>
>>>>>>
>>>>>> On 4/4/14, 1:46 PM, Ahmet y?ld?r?m wrote:
>>>>>>
>>>>>>   Dear Justin,
>>>>>>>
>>>>>>> These parameters are present in literature. I think these
>>>>>>> bonds/parameters
>>>>>>> are correctly generated. You said "The previous topology output
>>>>>>> suggests
>>>>>>> not, because ZN is not renamed to ZNW".  I do not know what to do.
>>>>>>>
>>>>>>>
>>>>>>>   Probably because the distance you have set in specbond.dat is
>>>>>> incorrect.
>>>>>>    I'll ask again - are the His-Zn bonds correctly generated?  If
>>>>>> not,
>>>>>> that's
>>>>>> your problem.  If they are, we'll have to do more digging.  You can
>>>>>> avoid
>>>>>> the whole Zn-renaming and charge issue if you do as I suggested
>>>>>> before
>>>>>> and
>>>>>> create a residue that contains Zn(HOH), not just ZN and then a
>>>>>> separate
>>>>>> residue for the water bound to it.  Treat it as its own entity.
>>>>>>
>>>>>>
>>>>>>    I added the OZ-HZ bond in ffbonded.itp. Unfortunately I get the
>>>>>> same
>>>>>>
>>>>>>> errors:
>>>>>>>
>>>>>>> ERROR 1 [file protein_Ion_chain_A2.itp, line 33]:
>>>>>>>      No default Bond types
>>>>>>> ERROR 2 [file protein_Ion_chain_A2.itp, line 34]:
>>>>>>>      No default Bond types
>>>>>>>
>>>>>>> ffbonded.itp:
>>>>>>>      Zn NA         1    0.20500   16744.0 ;modified
>>>>>>>      Zn NB         1    0.20500   16744.0 ;modified
>>>>>>>      Zn OZ         1    0.23000   16744.0 ;modified
>>>>>>>      OZ HZ         1    0.09572   221682.2 ;modified
>>>>>>>
>>>>>>>
>>>>>>>   Are you making these corrections in the right place?  Does your
>>>>>>> .top
>>>>>> call
>>>>>> your modified force field?  Are you modifying files in $GMXLIB or in
>>>>>> the
>>>>>> working directory?
>>>>>>
>>>>>>
>>>>>> -Justin
>>>>>>
>>>>>> --
>>>>>> ==================================================
>>>>>>
>>>>>> Justin A. Lemkul, Ph.D.
>>>>>> Ruth L. Kirschstein NRSA Postdoctoral Fellow
>>>>>>
>>>>>> Department of Pharmaceutical Sciences
>>>>>> School of Pharmacy
>>>>>> Health Sciences Facility II, Room 601
>>>>>> University of Maryland, Baltimore
>>>>>> 20 Penn St.
>>>>>> Baltimore, MD 21201
>>>>>>
>>>>>> jalemkul at outerbanks.umaryland.edu | (410) 706-7441
>>>>>> http://mackerell.umaryland.edu/~jalemkul
>>>>>>
>>>>>> ==================================================
>>>>>> --
>>>>>> 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-request at gromacs.org.
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>>
>>>> --
>>>> ==================================================
>>>>
>>>> Justin A. Lemkul, Ph.D.
>>>> Ruth L. Kirschstein NRSA Postdoctoral Fellow
>>>>
>>>> Department of Pharmaceutical Sciences
>>>> School of Pharmacy
>>>> Health Sciences Facility II, Room 601
>>>> University of Maryland, Baltimore
>>>> 20 Penn St.
>>>> Baltimore, MD 21201
>>>>
>>>> jalemkul at outerbanks.umaryland.edu | (410) 706-7441
>>>> http://mackerell.umaryland.edu/~jalemkul
>>>>
>>>> ==================================================
>>>> --
>>>> 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-request at gromacs.org.
>>>>
>>>
>>>
>>>
>>> --
>>> Ahmet Y?ld?r?m
>>>
>>
>>
>>
>
> --
> ==================================================
>
> Justin A. Lemkul, Ph.D.
> Ruth L. Kirschstein NRSA Postdoctoral Fellow
>
> Department of Pharmaceutical Sciences
> School of Pharmacy
> Health Sciences Facility II, Room 601
> University of Maryland, Baltimore
> 20 Penn St.
> Baltimore, MD 21201
>
> jalemkul at outerbanks.umaryland.edu | (410) 706-7441
> http://mackerell.umaryland.edu/~jalemkul
>
> ==================================================
>
>
> ------------------------------
>
> --
> 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
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>
>
> End of gromacs.org_gmx-users Digest, Vol 120, Issue 32
> ******************************************************
>


-- 
*Marzieh Dehghan

PhD Candidate of Biochemistry
Institute of biochemistry and Biophysics (IBB)
University of Tehran, Tehran- Iran.*


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