[gmx-users] Error by pdb2gmx

Dallas B. Warren Dallas.Warren at pharm.monash.edu.au
Wed Apr 29 01:38:15 CEST 2009


That is correct.  Fact you can't edit the .rtp file is based on your local computer system permissions.  Normally, best idea is to make your own changes to a local copy, and use that.

Catch ya,

Dr. Dallas Warren
Department of Pharmaceutical Biology and Pharmacology
Pharmacy and 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. 

> -----Original Message-----
> From: gmx-users-bounces at gromacs.org 
> [mailto:gmx-users-bounces at gromacs.org] On Behalf Of Yanmei Song
> Sent: Wednesday, 29 April 2009 9:24 AM
> To: Discussion list for GROMACS users
> Subject: Re: [gmx-users] Error by pdb2gmx
> 
> Dear Dallas:
> 
> Thanks for your response. It consists of many repeating units. Do you
> mean I can write the rtp entry for one repeating unit and give it a
> residue name. After that I need to insert this into the force field
> rtp file, right? How can I do that? It seems I can not change the rtp
> file.  Thanks.
> 
> On Tue, Apr 28, 2009 at 4:03 PM, Dallas B. Warren
> <Dallas.Warren at pharm.monash.edu.au> wrote:
> > If it is a repeating unit, then you can build a .rtp entry 
> then use it as you would for a protein.
> >
> > Catch ya,
> >
> > Dr. Dallas Warren
> > Department of Pharmaceutical Biology and Pharmacology
> > Pharmacy and 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.
> >
> >> -----Original Message-----
> >> From: gmx-users-bounces at gromacs.org
> >> [mailto:gmx-users-bounces at gromacs.org] On Behalf Of Yanmei Song
> >> Sent: Wednesday, 29 April 2009 8:59 AM
> >> To: jalemkul at vt.edu; Discussion list for GROMACS users
> >> Subject: Re: [gmx-users] Error by pdb2gmx
> >>
> >> Dear Justin:
> >>
> >> Do you have any suggestions on how I can get the itp and 
> gro file for
> >> a very long polymer molecules (for example 500 united-atoms), which
> >> only consists of Si, O and C atom. I can use PRODRG to generate a
> >> short chain. But PRODRG has limitation of atom numbers in 
> a molecule,
> >> probably less than 300. So any ideas for building up a long chain
> >> based on the short chain? By the way, I already have the 
> force field
> >> parameters.
> >>
> >> Thanks a lot!
> >>
> >> On Tue, Apr 28, 2009 at 3:37 PM, Justin A. Lemkul
> >> <jalemkul at vt.edu> wrote:
> >> >
> >> >
> >> > Yanmei Song wrote:
> >> >>
> >> >> Dear All users:
> >> >>
> >> >> I was trying to set up a long chain polymer system. I got the
> >> >> following PDB file from WebLab. How can I make changes to
> >> the file in
> >> >> order to make it as a GROMACS input pdb file. Then I can
> >> use pdb2gmx
> >> >> to get the gro, itp and top file.
> >> >>
> >> >> When I perform the pdb2gmx command, I got the error message:
> >> >>
> >> >> Residue 'MOL' not found in residue topology database
> >> >>
> >> >
> >> > You can't expect pdb2gmx to be magic.  A simple search of
> >> the list archives
> >> > and wiki will turn up the following:
> >> >
> >> >
> >> http://wiki.gromacs.org/index.php/Errors#Residue_.27XXX.27_not
> > _found_in_residue_topology_database
> >> >
> >> > -Justin
> >> >
> >> >> Thank you in advance!
> >> >>
> >> >> REMARK   Created:  Tue Apr 28 15:02:20 US Mountain
> >> Standard Time 2009
> >> >> ATOM      1 Si1  MOL A   1       3.798   2.502  -0.836  
> 1.00  0.00
> >> >> ATOM      2  O2  MOL A   1       4.664   1.185  -0.027  
> 1.00  0.00
> >> >> ATOM      3 Si4  MOL A   1       4.900  -0.177   1.079  
> 1.00  0.00
> >> >> ATOM      4  O6  MOL A   1       3.689  -1.438   0.845  
> 1.00  0.00
> >> >> ATOM      5 Si7  MOL A   1       2.039  -2.056   0.903  
> 1.00  0.00
> >> >> ATOM      6  O8  MOL A   1       2.039  -3.722   0.332  
> 1.00  0.00
> >> >> ATOM      7 Si9  MOL A   1       1.180  -5.224   0.014  
> 1.00  0.00
> >> >> ATOM      8  O10 MOL A   1       2.298  -6.420  -0.633  
> 1.00  0.00
> >> >> ATOM      9 Si16 MOL A   1       3.361  -7.028  -1.900  
> 1.00  0.00
> >> >> ATOM     10  O17 MOL A   1       4.535  -5.799  -2.365  
> 1.00  0.00
> >> >> ATOM     11 Si18 MOL A   1       5.953  -5.366  -3.320  
> 1.00  0.00
> >> >> ATOM     12  O22 MOL A   1       6.258  -3.639  -3.185  
> 1.00  0.00
> >> >> ATOM     13 Si24 MOL A   1       5.682  -1.999  -3.453  
> 1.00  0.00
> >> >> ATOM     14  O26 MOL A   1       6.881  -0.844  -2.890  
> 1.00  0.00
> >> >> ATOM     15 Si28 MOL A   1       8.517  -0.212  -3.003  
> 1.00  0.00
> >> >> ATOM     16  O29 MOL A   1       8.809   0.341  -4.647  
> 1.00  0.00
> >> >> ATOM     17 Si30 MOL A   1       9.880   1.056  -5.847  
> 1.00  0.00
> >> >> ATOM     18  C34 MOL A   1       9.732  -1.565  -2.571  
> 1.00  0.00
> >> >> ATOM     19  C36 MOL A   1       8.724   1.219  -1.818  
> 1.00  0.00
> >> >> ATOM     20  C38 MOL A   1       6.589  -0.910   0.760  
> 1.00  0.00
> >> >> ATOM     21  C40 MOL A   1       4.840   0.411   2.849  
> 1.00  0.00
> >> >> ATOM     22  C42 MOL A   1       5.390  -1.733  -5.281  
> 1.00  0.00
> >> >> ATOM     23  C44 MOL A   1       4.081  -1.754  -2.530  
> 1.00  0.00
> >> >> ATOM     24  C46 MOL A   1       7.438  -6.318  -2.702  
> 1.00  0.00
> >> >> ATOM     25  C48 MOL A   1       5.648  -5.792  -5.115  
> 1.00  0.00
> >> >> ATOM     26  C50 MOL A   1       2.341  -7.493  -3.396  
> 1.00  0.00
> >> >> ATOM     27  C52 MOL A   1       4.255  -8.543  -1.268  
> 1.00  0.00
> >> >> ATOM     28  C54 MOL A   1       0.463  -5.865   1.617  
> 1.00  0.00
> >> >> ATOM     29  C56 MOL A   1      -0.202  -4.925  -1.209  
> 1.00  0.00
> >> >> ATOM     30  C58 MOL A   1       1.433  -2.009   2.671  
> 1.00  0.00
> >> >> ATOM     31  C60 MOL A   1       0.903  -1.026  -0.161  
> 1.00  0.00
> >> >> ATOM     32  O62 MOL A   1       3.060   3.615   0.318  
> 1.00  0.00
> >> >> ATOM     33 Si63 MOL A   1       1.891   3.996   1.583  
> 1.00  0.00
> >> >> ATOM     34  O64 MOL A   1       2.107   5.670   2.078  
> 1.00  0.00
> >> >> ATOM     35 Si68 MOL A   1       3.135   6.928   2.750  
> 1.00  0.00
> >> >> ATOM     36  C69 MOL A   1       3.667   6.449   4.477  
> 1.00  0.00
> >> >> ATOM     37  C72 MOL A   1       5.024   3.447  -1.883  
> 1.00  0.00
> >> >> ATOM     38  C74 MOL A   1       2.469   1.818  -1.953  
> 1.00  0.00
> >> >> ATOM     39  C76 MOL A   1       0.160   3.770   0.914  
> 1.00  0.00
> >> >> ATOM     40  C78 MOL A   1       2.129   2.878   3.056  
> 1.00  0.00
> >> >> ATOM     41  C80 MOL A   1       2.186   8.538   2.814  
> 1.00  0.00
> >> >> ATOM     42 Si84 MOL A   1       4.912   7.172   1.476  
> 1.00  0.00
> >> >> ATOM     43  C84 MOL A   1       8.985   1.172  -7.484  
> 1.00  0.00
> >> >> ATOM     44  C86 MOL A   1      10.388   2.767  -5.292  
> 1.00  0.00
> >> >> ATOM     45  C88 MOL A   1      11.402  -0.013  -6.044  
> 1.00  0.00
> >> >> TER
> >> >>
> >> >>
> >> >
> >> > --
> >> > ========================================
> >> >
> >> > Justin A. Lemkul
> >> > Ph.D. Candidate
> >> > ICTAS Doctoral Scholar
> >> > Department of Biochemistry
> >> > Virginia Tech
> >> > Blacksburg, VA
> >> > jalemkul[at]vt.edu | (540) 231-9080
> >> > http://www.bevanlab.biochem.vt.edu/Pages/Personal/justin
> >> >
> >> > ========================================
> >> > _______________________________________________
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> >> >
> >>
> >>
> >>
> >> --
> >> Yanmei Song
> >> Department of Chemical Engineering
> >> ASU
> >> _______________________________________________
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> 
> 
> 
> -- 
> Yanmei Song
> Department of Chemical Engineering
> ASU
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