[gmx-users] Re: gmx-users Digest, Vol 69, Issue 133

Miguel Quiliano Meza rifaximina at gmail.com
Tue Jan 26 23:44:28 CET 2010


Hi , Justin.

well.. I keep three water molecules  from original PDB , my actual model was
obtained by homology.

my file *top shows this.

[ molecules ]
; Compound        #mols
Protein             1 ----------> Also, Zn+2 is here
SOL                 3  --------> from template
LIG                 1
SOL             91231------->added with genbox

Now, in my *pdb file obtained with genbox there are no blocks,

...............
...........................
ATOM   1721  O1  SER   185      78.315  86.779  66.412  1.00  0.00
ATOM   1722  O2  SER   185      78.467  89.180  66.704  1.00  0.00
ATOM   1723  Zn   ZN   186      70.487  59.483  68.899  1.00  0.00
ATOM   1724  OW  HOH   187      69.331  58.199  67.904  1.00  0.00
ATOM   1725  HW1 HOH   187      70.147  58.199  68.481  1.00  0.00
ATOM   1726  HW2 HOH   187      68.515  58.199  68.481  1.00  0.00
ATOM   1727  OW  HOH   188      70.810  60.669  67.316  1.00  0.00
ATOM   1728  HW1 HOH   188      71.626  60.669  67.893  1.00  0.00
ATOM   1729  HW2 HOH   188      70.810  61.485  66.739  1.00  0.00
ATOM   1730  OW  HOH   189      68.765  60.471  69.225  1.00  0.00
ATOM   1731  HW1 HOH   189      69.581  60.471  69.802  1.00  0.00
ATOM   1732  HW2 HOH   189      68.765  59.655  68.648  1.00  0.00
ATOM   1733  CAB LIG   190      71.884  63.353  62.792  1.00  0.00
ATOM   1734  HAB LIG   190      70.812  63.372  62.596  1.00  0.00
........................................
......................
........
ATOM   1746  HAI LIG   190      72.792  64.517  66.353  1.00  0.00
ATOM   1747  OW  SOL   191       5.690  12.751  11.651  1.00  0.00
ATOM   1748  HW1 SOL   191       4.760  12.681  11.281  1.00  0.00
ATOM   1749  HW2 SOL   191       5.800  13.641  12.091  1.00  0.00
ATOM   1750  OW  SOL   192      15.551  15.111   7.030  1.00  0.00
ATOM   1751  HW1 SOL   192      14.981  14.951   7.840  1.00  0.00
.....
..............

What could be the problem??

thanks in advance.
MIguel.



2010/1/26 <gmx-users-request at gromacs.org>

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> Today's Topics:
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>   1. Re: the solvent group SOL is not continuous (Justin A. Lemkul)
>   2. Potential Energy (Yanmei Song)
>   3. RE?: gmx-users Digest, Vol 69, Issue 132 (ABEL Stephane 175950)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Tue, 26 Jan 2010 16:30:07 -0500
> From: "Justin A. Lemkul" <jalemkul at vt.edu>
> Subject: Re: [gmx-users] the solvent group SOL is not continuous
> To: Discussion list for GROMACS users <gmx-users at gromacs.org>
> Message-ID: <4B5F5EDF.4080108 at vt.edu>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
>
>
> Miguel Quiliano Meza wrote:
> > *Hi everyone.
> >
> > I have a problem when I try to run GENION, GROMACS says:
> > *
> > WARNING: turning of free energy, will use lambda=0
> > Reading file 1x8a_solvatada.tpr, VERSION 3.3.3 (single precision)
> > Using a coulomb cut-off of 0.9 nm
> > Will try to add 0 Na ions and 15 NA+ ions.
> > Select a continuous group of solvent molecules
> > Opening library file /usr/share/gromacs/top/
> > aminoacids.dat
> > Group     0 (      System) has 275439 elements
> > Group     1 (     Protein) has  1722 elements
> > Group     2 (   Protein-H) has  1371 elements
> > Group     3 (     C-alpha) has   185 elements
> > Group     4 (    Backbone) has   555 elements
> > Group     5 (   MainChain) has   741 elements
> > Group     6 (MainChain+Cb) has   909 elements
> > Group     7 ( MainChain+H) has   921 elements
> > Group     8 (   SideChain) has   801 elements
> > Group     9 ( SideChain-H) has   630 elements
> > Group    10 ( Prot-Masses) has  1722 elements
> > Group    11 ( Non-Protein) has 273717 elements
> > Group    12 (          ZN) has     1 elements
> > Group    13 (         SOL) has 273702 elements
> > Group    14 (         LIG) has    14 elements
> > Group    15 (       Other) has 273717 elements
> > Select a group: 13
> > Selected 13: 'SOL'
> >
> > -------------------------------------------------------
> > Program genion, VERSION 3.3.3
> > Source code file: ../../../../src/tools/gmx_genion.c, line: 429
> >
> > Fatal error:
> > The solvent group SOL is not continuous: index[9]=1732, index[10]=1747
> > -------------------------------------------------------
> >
> > "Bad As This Shit Is, This Shit Ain't As Bad As You Think It Is."
> > (Jackie Brown)
> >
> > *I do not know the reason,the number of residues in top file and pdb
> > file are the same. The only warning that I saw was when I ran grompp:
> > *
> > WARNING 1 [file 1x8a.top, line unknown]:
> >   The largest charge group contains 11 atoms.
> >   Since atoms only see each other when the centers of geometry of the
> charge
> >   groups they belong to are within the cut-off distance, too large charge
> >   groups can lead to serious cut-off artifacts.
> >   For efficiency and accuracy, charge group should consist of a few
> atoms.
> >   For all-atom force fields use: CH3, CH2, CH, NH2 NH, OH, CO2, CO, etc.
> >
> > *Coincidentally they are some of the atomos of my ligand*
> > *
> > I have been reading the web and no-one says nothing about it. I would be
> > very grateful if someone can help me or give me advices.
> >
>
> Look at your coordinate file.  Do you have two separate blocks of solvent,
> like
> crystal waters and then solvent added by genbox (after your zinc and
> ligand,
> perhaps)?
>
> -Justin
>
> > Best Regards
> > MIguel Quiliano*
> >
>
> --
> ========================================
>
> 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
>
> ========================================
>
>
> ------------------------------
>
> Message: 2
> Date: Tue, 26 Jan 2010 14:49:40 -0700
> From: Yanmei Song <ysong30 at asu.edu>
> Subject: [gmx-users] Potential Energy
> To: Discussion list for GROMACS users <gmx-users at gromacs.org>
> Message-ID:
>        <d6421a761001261349o49b01994j64acf046d9ea08e9 at mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
>
> Dear Users:
>
> I am in the process of setting up a new system.  I have a 8.0*8.0*8.0 nm3
> system which include 27800 molecules. When the system approach equilibrium,
> I found the potential energy is +3e5 (big positive number). Is this normal?
> Since based on my experience, for systems in such size, the potential
> energy
> is usually a big negative number? Does this mean that my force field
> parameter or molecule structure have problems? Thanks in advance!
>
> --
> Yanmei Song
> Ph.D. Candidate
> Department of Chemical Engineering
> Arizona State University
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> ------------------------------
>
> Message: 3
> Date: Tue, 26 Jan 2010 22:54:36 +0100
> From: "ABEL Stephane 175950" <Stephane.ABEL at cea.fr>
> Subject: [gmx-users] RE?: gmx-users Digest, Vol 69, Issue 132
> To: <gmx-users at gromacs.org>
> Message-ID:
>        <F654B3EE96986E4B8DC6EF0919C88DA32AB43B at LODERI.intra.cea.fr>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Thanks Justin
>
> Indeed, It worked !!!
>
> In french, one says: "je ne dormirai pas idiot ce soir".
>
> Stéphane
>
>
>
> >Thank you Roland for your response
>
> >I have effectively downloaded from the
> >http://repo.or.cz/w/gromacs.git/snapshot/HEAD.tar.gz, the HEAD version
> >of gmx Unfortunately, the unpacked directory does not contain a
> >configure file, I have only an configure.ac.
>
> >So my question is: how to obtain a fully fonctional version of 4.1
> >without using git
>
> >Thank you for your response
> >
> > Hi,
> >
> > there is currently no web-interface on the official git server. Thus
> > repo.or.wz is probably the best solution.
> > I checked that http://repo.or.cz/w/gromacs.git/snapshot/HEAD.tar.gz is
> > up-to-date.
> >
> > Roland
> >
> > On Tue, Feb 23, 2010 at 8:31 AM, intra\sa175950 <stephane.abel at cea.fr
> >wrote:
> >
> >
> >>  Hi all,
> >>
> >>
> >>
> >> For a future project, I would like to use gromacs for simulations with
> the
> >> CHARMM force field. I am aware that the CHARMM ff is not yet
> "officially"
> >> supported by gromacs, even if a paper about this port will be published
> >> soon. By reading the mailing list, I understand that a beta version of
> >> gmx4.1 is available for testing from the git depositary. I have tried to
> use
> >> git, but since I am behind a firewall, I cannot easily access to the
> >> depositary. I have tried to obtain a previous from
> >> http://repo.or.cz/w/gromacs.git through the master branch but I am not
> >> sure that the file downloaded was the latest version. Therefore, my
> question
> >> is how to obtain the latest version of pre gmx4.1 without using git ?
> >>
> >>
> >>
> >> Thank you for your help
> >>
> >>
> >>
> >> Stéphane
> >>
> >> --
> >> 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/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/mailing_lists/users.php
> >>
> >>
> >
> >
> >
> >
>
>
>
> ------------------------------
>
> Message: 3
> Date: Tue, 26 Jan 2010 14:00:00 -0500
> From: "Justin A. Lemkul" <jalemkul at vt.edu>
> Subject: Re: [gmx-users] Re: Obtain a pre-version of gromacs 4.1
>        without git
> To: Discussion list for GROMACS users <gmx-users at gromacs.org>
> Message-ID: <4B5F3BB0.1000801 at vt.edu>
> Content-Type: text/plain; charset=windows-1252; format=flowed
>
>
>
> Stephane Abel wrote:
> > Thank you Roland for your response
> >
> > I have effectively downloaded from the
> > http://repo.or.cz/w/gromacs.git/snapshot/HEAD.tar.gz, the HEAD version
> > of gmx Unfortunately, the unpacked directory does not contain a
> > configure file, I have only an configure.ac.
> >
> > So my question is: how to obtain a fully fonctional version of 4.1
> > without using git
> >
>
> In the code you downloaded, there should be a script called "bootstrap"
> which
> you can execute to generate the configure file.
>
> -Justin
>
> > Thank you for your response
> >>
> >> Hi,
> >>
> >> there is currently no web-interface on the official git server. Thus
> >> repo.or.wz is probably the best solution.
> >> I checked that http://repo.or.cz/w/gromacs.git/snapshot/HEAD.tar.gz is
> >> up-to-date.
> >>
> >> Roland
> >>
> >> On Tue, Feb 23, 2010 at 8:31 AM, intra\sa175950
> >> <stephane.abel at cea.fr>wrote:
> >>
> >>
> >>>  Hi all,
> >>>
> >>>
> >>>
> >>> For a future project, I would like to use gromacs for simulations
> >>> with the
> >>> CHARMM force field. I am aware that the CHARMM ff is not yet
> >>> "officially"
> >>> supported by gromacs, even if a paper about this port will be published
> >>> soon. By reading the mailing list, I understand that a beta version of
> >>> gmx4.1 is available for testing from the git depositary. I have tried
> >>> to use
> >>> git, but since I am behind a firewall, I cannot easily access to the
> >>> depositary. I have tried to obtain a previous from
> >>> http://repo.or.cz/w/gromacs.git through the master branch but I am not
> >>> sure that the file downloaded was the latest version. Therefore, my
> >>> question
> >>> is how to obtain the latest version of pre gmx4.1 without using git ?
> >>>
> >>>
> >>>
> >>> Thank you for your help
> >>>
> >>>
> >>>
> >>> Stéphane
> >>>
> >>> --
> >>> 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/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/mailing_lists/users.php
> >>>
> >>>
> >>
> >>
> >>
> >>
> >
>
> --
> ========================================
>
> 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
>
> ========================================
>
>
> ------------------------------
>
> Message: 4
> Date: Wed, 27 Jan 2010 08:09:47 +1100
> From: "Dallas B. Warren" <Dallas.Warren at pharm.monash.edu.au>
> Subject: RE: [gmx-users] Ligand coming out while trying Drug-enzyme
>        tutorial
> To: Discussion list for GROMACS users <gmx-users at gromacs.org>
> Message-ID:
>        <89907EA1DCFB7548A431C13A270F9DD508FD800E at prk-exch-01.vcp.local>
> Content-Type: text/plain; charset="us-ascii"
>
> So, what EXACTLY are you doing?
>
>
>
> Catch ya,
>
> Dr. Dallas Warren
> Drug Delivery, Disposition and Dynamics
> Monash Institute of Pharmaceutical Sciences, Monash University
> 381 Royal Parade, Parkville VIC 3010
> dallas.warren at pharm.monash.edu.au
> +61 3 9903 9167
> ---------------------------------
> When the only tool you own is a hammer, every problem begins to resemble
> a nail.
>
>
>
> From: gmx-users-bounces at gromacs.org
> [mailto:gmx-users-bounces at gromacs.org] On Behalf Of vivek sharma
> Sent: Monday, 25 January 2010 7:38 PM
> To: Discussion list for GROMACS users
> Subject: Re: [gmx-users] Ligand coming out while trying Drug-enzyme
> tutorial
>
>
>
> HI Tsjerk,
> Thanks for your reply. But, I can't see if it is going suddenly or
> gradually.
> What i can see is the ligand is away from the molecule after editing the
> gro file with PRODRG output.
>
> It seems liek PRODRG has modified the co-ordinates that places ligand
> away from the protein.
>
> ~Vivek
>
> 2010/1/25 Tsjerk Wassenaar <tsjerkw at gmail.com>
>
> Hi Vivek,
>
>
> > Now when I am processing the modified .gro file to generate box, the
> ligand
> > and cofactor are going away from the protein molecule and I am not
> able to
> > analyze the complex.
>
> Gradually going away, or suddenly jumping?
>
> In the latter case, read up on periodic boundary conditions.
>
> Tsjerk
>
>
> --
> Tsjerk A. Wassenaar, Ph.D.
>
> Computational Chemist
> Medicinal Chemist
> Neuropharmacologist
> --
>
> 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/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/mailing_lists/users.php
>
>
>
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>
> Message: 5
> Date: Tue, 26 Jan 2010 16:26:09 -0500
> From: Miguel Quiliano Meza <rifaximina at gmail.com>
> Subject: [gmx-users] the solvent group SOL is not continuous
> To: gmx-users at gromacs.org
> Message-ID:
>        <6c2f55e31001261326w7d3a2588wf577aa5b3f6614a3 at mail.gmail.com>
> Content-Type: text/plain; charset="iso-8859-1"
>
> *Hi everyone.
>
> I have a problem when I try to run GENION, GROMACS says:
> *
> WARNING: turning of free energy, will use lambda=0
> Reading file 1x8a_solvatada.tpr, VERSION 3.3.3 (single precision)
> Using a coulomb cut-off of 0.9 nm
> Will try to add 0 Na ions and 15 NA+ ions.
> Select a continuous group of solvent molecules
> Opening library file /usr/share/gromacs/top/
> aminoacids.dat
> Group     0 (      System) has 275439 elements
> Group     1 (     Protein) has  1722 elements
> Group     2 (   Protein-H) has  1371 elements
> Group     3 (     C-alpha) has   185 elements
> Group     4 (    Backbone) has   555 elements
> Group     5 (   MainChain) has   741 elements
> Group     6 (MainChain+Cb) has   909 elements
> Group     7 ( MainChain+H) has   921 elements
> Group     8 (   SideChain) has   801 elements
> Group     9 ( SideChain-H) has   630 elements
> Group    10 ( Prot-Masses) has  1722 elements
> Group    11 ( Non-Protein) has 273717 elements
> Group    12 (          ZN) has     1 elements
> Group    13 (         SOL) has 273702 elements
> Group    14 (         LIG) has    14 elements
> Group    15 (       Other) has 273717 elements
> Select a group: 13
> Selected 13: 'SOL'
>
> -------------------------------------------------------
> Program genion, VERSION 3.3.3
> Source code file: ../../../../src/tools/gmx_genion.c, line: 429
>
> Fatal error:
> The solvent group SOL is not continuous: index[9]=1732, index[10]=1747
> -------------------------------------------------------
>
> "Bad As This Shit Is, This Shit Ain't As Bad As You Think It Is." (Jackie
> Brown)
>
> *I do not know the reason,the number of residues in top file and pdb file
> are the same. The only warning that I saw was when I ran grompp:
> *
> WARNING 1 [file 1x8a.top, line unknown]:
>  The largest charge group contains 11 atoms.
>  Since atoms only see each other when the centers of geometry of the charge
>  groups they belong to are within the cut-off distance, too large charge
>  groups can lead to serious cut-off artifacts.
>  For efficiency and accuracy, charge group should consist of a few atoms.
>  For all-atom force fields use: CH3, CH2, CH, NH2 NH, OH, CO2, CO, etc.
>
> *Coincidentally they are some of the atomos of my ligand*
> *
> I have been reading the web and no-one says nothing about it. I would be
> very grateful if someone can help me or give me advices.
>
> Best Regards
> MIguel Quiliano*
> -------------- next part --------------
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> http://lists.gromacs.org/mailman/listinfo/gmx-users
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