RE: [gmx-users] Regarding error.

2012-06-19 Thread Emanuel Birru
Check this page for clarification



http://www.gromacs.org/Documentation/Errors#X_particles_communicated_to_PME_node_Y_are_more_than_a_cell_length_out_of_the_domain_decomposition_cell_of_their_charge_group

I guess this issue was also addressed before :

http://lists.gromacs.org/pipermail/gmx-users/2011-February/058868.html



Cheers,

EB



From: gmx-users-boun...@gromacs.org [mailto:gmx-users-boun...@gromacs.org] On 
Behalf Of Seera Suryanarayana
Sent: Tuesday, 19 June 2012 4:50 PM
To: gmx-users@gromacs.org
Subject: [gmx-users] Regarding error.

Dear all gromacs users,
  While i am running the commond mdrun -deffnm 
nvt i am getting the following error.

 Fatal error:
1 particles communicated to PME node 1 are more than 2/3 times the cut-off out 
of the domain decomposition cell of their charge group in dimension x.
This usually means that your system is not well equilibrated.

Kindly tell me how to over come this error.

Suryanarayana Seera,
JRF,
India.
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Re: [gmx-users] Regarding error.

2012-06-15 Thread Justin A. Lemkul



On 6/15/12 4:08 AM, Seera Suryanarayana wrote:

Dear all gromacs users,
   While i am running the commond trjconv -f
1AKI_full.trr -s 1AKI_b4full.tpr -o final.pdb -dump 500 i am getting the
following warning.
WARNING no output, last frame read at t=10
Kindly tell me how to overcome this error.



The .trr file contains time frames only up to 10 ps, so you can't dump out a 
frame at 500 ps - it doesn't exist.


-Justin

--


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Research Scientist
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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RE: [gmx-users] Regarding error

2012-06-07 Thread Dallas Warren
Have you incorrectly changed the numbers in the topology, the difference in the 
number is 8, so it appears your coordinate file contains 8 more atoms than the 
topology.  You will have to work out how that is.

Catch ya,

Dr. Dallas Warren
Drug Discovery Biology
Monash Institute of Pharmaceutical Sciences, Monash University
381 Royal Parade, Parkville VIC 3010
dallas.war...@monash.edu
+61 3 9903 9304
-
When the only tool you own is a hammer, every problem begins to resemble a nail.

From: gmx-users-boun...@gromacs.org [mailto:gmx-users-boun...@gromacs.org] On 
Behalf Of Seera Suryanarayana
Sent: Friday, 8 June 2012 3:32 PM
To: gmx-users@gromacs.org
Subject: [gmx-users] Regarding error

Dear all gromacs users,

 While running the grompp commond after 
addition of counter ions i am getting the following error.

  Fatal error:
number of coordinates in 
coordinate file (3ASW_ion.gro, 178301)
does not match 
topology (3ASW.top, 178293)

Here i am sending my .top file,kindly tell me how to overcome this error.





;
;   File '3ASW.top' was generated
;   By user: onbekend (0)
;   On host: onbekend
;   At date: Sat Jun  9 10:36:25 2012
;
;   This is a standalone topology file
;
;   It was generated using program:
;   pdb2gmx - VERSION 4.5.5
;
;   Command line was:
;   pdb2gmx -f 3ASW.pdb -o 3ASW.gro -p 3ASW.top -missing
;
;   Force field was read from the standard Gromacs share directory.
;

; Include forcefield parameters
#include gromos43a1.ff/forcefield.itp

; Include chain topologies
#include 3ASW_Protein_chain_A.itp
#include 3ASW_Protein_chain_B.itp

; Include water topology
#include gromos43a1.ff/spc.itp

#ifdef POSRES_WATER
; Position restraint for each water oxygen
[ position_restraints ]
;  i funct   fcxfcyfcz
   11   1000   1000   1000
#endif

; Include topology for ions
#include gromos43a1.ff/ions.itp
;#include ions.itp
[ system ]
; Name
CLUMPING FACTOR B; TAIL REGION DERIVED PEPTIDE in water

[ molecules ]
; Compound#mols
Protein_chain_A 1
Protein_chain_B 1
SOL   129
SOL 5
SOL 58209
NA ions 8
/Add NA ions


Suryanarayana Seera,
JRF,
India.
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Re: [gmx-users] Regarding error.

2012-06-06 Thread Javier Cerezo
There is no GROMACS tool that repairs incomplete structures, but you can 
find other programs that can do it. Some of them have been previously 
posted in this list (try a search on it). Personally I've used Swiss PDB 
viewer, which is useful to add missing atoms.


Javier

El 06/06/12 07:42, Seera Suryanarayana escribió:

Dear all gromacs users,

  I have 1VZV.pdb file, in that file 
HIS231 has incomplete ring as N atom is missing.Can i add N atom to 
the .pdb file if possible how can i add that atom to .pdb file.


Suryanarayana Seera,
PhD student,
India.




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Re: [gmx-users] Regarding error.

2012-06-06 Thread Erik Marklund
I use MacroMolecular Builder for all sorts of things, including filling in 
missing atoms.

Erik

6 jun 2012 kl. 08.59 skrev Javier Cerezo:

 There is no GROMACS tool that repairs incomplete structures, but you can find 
 other programs that can do it. Some of them have been previously posted in 
 this list (try a search on it). Personally I've used Swiss PDB viewer, which 
 is useful to add missing atoms.
 
 Javier
 
 El 06/06/12 07:42, Seera Suryanarayana escribió:
 
 Dear all gromacs users,
 
   I have 1VZV.pdb file, in that file HIS231 
 has incomplete ring as N atom is missing.Can i add N atom to the .pdb file 
 if possible how can i add that atom to .pdb file.
 
 Suryanarayana Seera,
 PhD student,
 India.
 
 
 
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Re: [gmx-users] Regarding error.

2012-06-06 Thread Javier Cerezo
It seems that redefinition comes from including tow different ions.itp 
files, here:

; Include topology for ions
#include gromos43a1.ff/ions.itp
#include ions.itp


Javier


El 06/06/12 10:51, Seera Suryanarayana escribió:

Dear all gromacs users,

  After added the counter ions to the 
top file and further i used 'grompp' commond,i got the following error.


Fatal error:
   moleculetype CU1 is 
redefined.


 This error occurs due the duplication 
of CU1 in .top file. But i cannot find that error in my .top file.Here 
i am sending my .top file. Kindly tell me how to overcome this error.





;
;   File '1UZ9.top' was generated
;   By user: onbekend (0)
;   On host: onbekend
;   At date: Thu Jun  7 13:55:15 2012
;
;   This is a standalone topology file
;
;   It was generated using program:
;   pdb2gmx - VERSION 4.5.5
;
;   Command line was:
;   pdb2gmx -f 1UZ9.pdb -o 1UZ9.gro -p 1UZ9.top
;
;   Force field was read from the standard Gromacs share directory.
;

; Include forcefield parameters
#include gromos43a1.ff/forcefield.itp

; Include chain topologies
#include 1UZ9_Protein_chain_A.itp
#include 1UZ9_Protein_chain_B.itp

; Include water topology
#include gromos43a1.ff/spc.itp

#ifdef POSRES_WATER
; Position restraint for each water oxygen
[ position_restraints ]
;  i funct   fcxfcyfcz
   11   1000   1000   1000
#endif

; Include topology for ions
#include gromos43a1.ff/ions.itp
#include ions.itp
[ system ]
; Name
Protein in water

[ molecules ]
; Compound#mols
Protein_chain_A 1
Protein_chain_B 1
SOL 13532
NA charge   3
/Add NA ions

Thanks and regards

Suryanarayana Seera,
JRF,
India.




--
Javier CEREZO BASTIDA
PhD Student
Physical Chemistry
Universidad de Murcia
Murcia (Spain)
Tel: (+34)868887434
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RE: [gmx-users] Regarding error

2012-06-04 Thread Emanuel Birru
The error itself is self explanatory, there are no 22 atoms in your protein 
structure, that suppose to be there. If you want to ignore those atoms when you 
build your topology you can use the -missing option when you run pdb2gmx. But 
if you need all the atoms you better construct a complete protein structure 
using some other software before you run pdb2gmx.

Cheers,







=
Emmanuel Birru
PhD Candidate

Faculty of Pharmacy and Pharmaceutical Sciences
Monash University (Parkville Campus)
381 Royal Parade, Parkville
Victoria 3052, Australia

Tel: Int + 61 3 9903 9187
E-mail: emanuel.bi...@monash.edumailto:firstname.lastn...@monash.edu
www.pharm.monash.edu.auhttp://www.pharm.monash.edu.au/

From: gmx-users-boun...@gromacs.org [mailto:gmx-users-boun...@gromacs.org] On 
Behalf Of Seera Suryanarayana
Sent: Monday, 4 June 2012 3:52 PM
To: gmx-users@gromacs.org
Subject: [gmx-users] Regarding error

Dear all gromacs users,


While i am running gromacs software i am getting following error.Let me 
know that error how to over come.

Fatal error:
There were 22 missing atoms in molecule Protein_chain_A, if you want to use 
this incomplete topology.

Suryanarayana Seera,
PhD student,
Hyderabad,
India.

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Re: [gmx-users] Regarding error

2012-06-04 Thread Mark Abraham

On 4/06/2012 5:05 PM, Seera Suryanarayana wrote:

Dear all gromacs users,

  While i am running pdb2gmx commond i 
am getting following error.


Fatal error:
There were 22 missing atoms in molecule Protein_chain_A, if you want 
to use

this incomplete topology.

I wont ignore the 22 missing atoms by using -missing commond. I would 
like to construct a complete protein structure.But i dont know how to 
construct the complete protein sturcture.Kindly tell me how to 
consturct the complete protein and what are the softwares i have to 
use here.


There is no general answer to this question. You have to examine the 
file, see what is missing, perhaps find out why, and then perhaps use 
various possible solutions. Some leads are here... 
http://www.gromacs.org/Documentation/File_Formats/Coordinate_File


Mark
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RE: [gmx-users] Regarding error

2012-05-29 Thread Emanuel Birru

I guess you have duplicate the moleculetype entries for CU1 in your topology 
file. Check your topology file again. You can not  have more than one 
moleculetype definition per molecule type.

Cheers,
Emmanuel







=
Emmanuel Birru
PhD Candidate

Faculty of Pharmacy and Pharmaceutical Sciences
Monash University (Parkville Campus)
381 Royal Parade, Parkville
Victoria 3052, Australia

Tel: Int + 61 3 9903 9187
E-mail: emanuel.bi...@monash.edumailto:firstname.lastn...@monash.edu
www.pharm.monash.edu.auhttp://www.pharm.monash.edu.au/

From: gmx-users-boun...@gromacs.org [mailto:gmx-users-boun...@gromacs.org] On 
Behalf Of Seera Suryanarayana
Sent: Tuesday, 29 May 2012 5:02 PM
To: gmx-users@gromacs.org
Subject: [gmx-users] Regarding error

Dear all gromacs users,

I tried the  grompp -c 3I40_ion.gro -p 3I40.top -o 
3I40_b4em.tpr -f em.mdp and i got the following error.



Option Filename  Type Description

  -f em.mdp  Inputgrompp input file with MD parameters
 -po  mdout.mdp  Output   grompp input file with MD parameters
  -c   3I40_ion.gro  InputStructure file: gro g96 pdb tpr etc.
  -r   conf.gro  Input, Opt.  Structure file: gro g96 pdb tpr etc.
 -rb   conf.gro  Input, Opt.  Structure file: gro g96 pdb tpr etc.
  -n  index.ndx  Input, Opt.  Index file
  -p   3I40.top  InputTopology file
 -pp  processed.top  Output, Opt. Topology file
  -o  3I40_b4em.tpr  Output   Run input file: tpr tpb tpa
  -t   traj.trr  Input, Opt.  Full precision trajectory: trr trj cpt
  -e   ener.edr  Input, Opt.  Energy file

Option   Type   Value   Description
--
-[no]h   bool   no  Print help info and quit
-[no]version bool   no  Print version info and quit
-niceint0   Set the nicelevel
-[no]v   bool   no  Be loud and noisy
-timereal   -1  Take frame at or first after this time.
-[no]rmvsbds bool   yes Remove constant bonded interactions with virtual
sites
-maxwarn int0   Number of allowed warnings during input
processing. Not for normal use and may generate
unstable systems
-[no]zerobool   no  Set parameters for bonded interactions without
defaults to zero instead of generating an error
-[no]renum   bool   yes Renumber atomtypes and minimize number of
atomtypes

Ignoring obsolete mdp entry 'cpp'

Back Off! I just backed up mdout.mdp to ./#mdout.mdp.19#
Generated 279 of the 1225 non-bonded parameter combinations

---
Program grompp, VERSION 4.5.5
Source code file: toppush.c, line: 1228



Fatal error:
moleculetype CU1 is redefined.

Is there any explanation why is thid happening?

I would appreciate any help. Iam new in using MD and gromac in particular.

Suryanarayana Seera,
PhD student,
Hyderabad,
India.
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RE: [gmx-users] Regarding error

2012-05-25 Thread Marzinek, Jan



From: gmx-users-boun...@gromacs.org [gmx-users-boun...@gromacs.org] on behalf 
of Seera Suryanarayana [paluso...@gmail.com]
Sent: Friday, May 25, 2012 6:23 AM
To: gmx-users@gromacs.org
Subject: [gmx-users] Regarding error

Dear all gromacs users,

  While i am using the commond pdb2gmx -f 
4E82.pdb -o 4E82.gro -p 4E82.top.I am getting the following warnings and 
errors.



Warning: Residue EME21 in chain has different type (Other) from starting 
residue ALA1 (Protein).
Warning: Residue ILE22 in chain has different type (Protein) from starting 
residue ALA1 (Protein).
Warning: Residue SER23 in chain has different type (Protein) from starting 
residue ALA1 (Protein).
Warning: Residue GLY24 in chain has different type (Protein) from starting 
residue ALA1 (Protein).
Warning: Residue ARG25 in chain has different type (Protein) from starting 
residue ALA1 (Protein).
More than 5 unidentified residues at end of chain - disabling further warnings.
Identified residue CYS20 as a ending terminus.
8 out of 8 lines of specbond.dat converted successfully
Special Atom Distance matrix:
CYS3CYS5   CYS10   CYS20   CYS30
SG18SG36SG75   SG144   SG228
CYS5SG36   0.834
   CYS10SG75   0.936   1.000
   CYS20   SG144   0.833   0.203   0.935
   CYS30   SG228   0.856   0.827   0.200   0.788
   CYS31   SG234   0.202   0.860   0.783   0.820   0.734
Linking CYS-3 SG-18 and CYS-31 SG-234...
Linking CYS-5 SG-36 and CYS-20 SG-144...
Linking CYS-10 SG-75 and CYS-30 SG-228...
Start terminus ALA-1: NH3+
End terminus CYS-20: COO-

Fatal error:
Residue 'EME' not found in residue topology database.


http://www.gromacs.org/Documentation/Errors#Residue_%27XXX%27_not_found_in_residue_topology_database

Jan

Kindly tell me how to over come this error.

Suryanarayana Seera,
PhD student,
Hyderabad,
India.

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Re: [gmx-users] Regarding error

2012-05-25 Thread Justin A. Lemkul



On 5/25/12 1:23 AM, Seera Suryanarayana wrote:

Dear all gromacs users,

   While i am using the commond pdb2gmx -f
4E82.pdb -o 4E82.gro -p 4E82.top.I am getting the following warnings and 
errors.



Warning: Residue EME21 in chain has different type (Other) from starting residue
ALA1 (Protein).
Warning: Residue ILE22 in chain has different type (Protein) from starting
residue ALA1 (Protein).
Warning: Residue SER23 in chain has different type (Protein) from starting
residue ALA1 (Protein).
Warning: Residue GLY24 in chain has different type (Protein) from starting
residue ALA1 (Protein).
Warning: Residue ARG25 in chain has different type (Protein) from starting
residue ALA1 (Protein).
More than 5 unidentified residues at end of chain - disabling further warnings.
Identified residue CYS20 as a ending terminus.
8 out of 8 lines of specbond.dat converted successfully
Special Atom Distance matrix:
 CYS3CYS5   CYS10   CYS20   CYS30
 SG18SG36SG75   SG144   SG228
 CYS5SG36   0.834
CYS10SG75   0.936   1.000
CYS20   SG144   0.833   0.203   0.935
CYS30   SG228   0.856   0.827   0.200   0.788
CYS31   SG234   0.202   0.860   0.783   0.820   0.734
Linking CYS-3 SG-18 and CYS-31 SG-234...
Linking CYS-5 SG-36 and CYS-20 SG-144...
Linking CYS-10 SG-75 and CYS-30 SG-228...
Start terminus ALA-1: NH3+
End terminus CYS-20: COO-

Fatal error:
Residue 'EME' not found in residue topology database.

Kindly tell me how to over come this error.



Whenever you encounter an error, your first source of information should be 
http://www.gromacs.org/Documentation/Errors.  This error, and most of the others 
you are likely to encounter, have been asked and answered hundreds (if not 
thousands) of times already.  For instance:


http://www.gromacs.org/Documentation/Errors#Residue_'XXX'_not_found_in_residue_topology_database

-Justin

--


Justin A. Lemkul, Ph.D.
Research Scientist
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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Re: [gmx-users] Regarding error.

2012-05-23 Thread rama david
On Thu, May 24, 2012 at 10:20 AM, Seera Suryanarayana
paluso...@gmail.comwrote:

 Dear all gromacs users,
while running the command grompp -c
 1UZ9_em.gro -p 1UZ9.top -o 1UZ9_b4pr.tpr -f pr.mdp i am getting the
 following error.

   File input/output error:
   pr.mdp

   Please tell me how to over come this
 error


Hi Seera ,
 the error is self explainable,

 you dont  have pr.mdp in your working directory.
 Make pr.mdp as mention in tutorial

With Best Wishes,
Rama David




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Re: [gmx-users] Regarding error.

2012-05-22 Thread Justin A. Lemkul



On 5/22/12 2:00 PM, Seera Suryanarayana wrote:

Dear all gromas users,
While i am running the grompp -c 1UZ9_em.gro -p 1UZ9.top -o 1UZ9_b4pr.tpr -f
pr.mdp after first mdrun command i got the following error.


File input/output error:
pr.mdp

Is there any explanation why is this happening?
I would appreciate any help.I am new in using MD and gromacs in particular.



I answered this already:

http://lists.gromacs.org/pipermail/gmx-users/2012-May/071679.html

If something is still unclear, reply to that post and explain what you don't 
understand, otherwise it just seems as if you're ignoring advice you're being given.


-Justin

--


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Research Scientist
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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Re: [gmx-users] Regarding error.

2012-05-21 Thread Javier Cerezo

Hi Seera

As the error message is telling you, the molecule type CU1 is defined 
more than once along your topology. Check it, locate the [ moleculetype 
] sections and verify that CU1 is defined only once. If that does not 
solve the problem, you can post you topology here so that we can try to 
identify the source for the error.


Javier

El 21/05/12 10:55, Seera Suryanarayana escribió:

Dear all gromacs users,
   I tried the grompp and i got the 
following error.




Fatal error:
moleculetype CU1 is redefined.

Is there any explanation why is thid happening?

I would appreciate any help. Iam new in using MD and gromac in particular.


Suryanarayana Seera,
PhD student,
HYderabad,
India.




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Physical Chemistry
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Tel: (+34)868887434
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Re: [gmx-users] Regarding error.

2012-05-21 Thread Dylan Smith

Hi Suryanarayana,

http://www.gromacs.org/Documentation/Errors is where i'd start. But to help 
you along this error suggests that you have a different number of atoms in 
your coordinate file(.gro) than your topology(.top) suggests. Often this can 
be caused by adding or removing ions or solvent without modifying your .top 
file.


Regards,
Dylan Smith

On 2012-05-22 15:03, Seera Suryanarayana wrote:

Dear all gromacs users,
 I tried the
grompp and i got the following error.

Fatal error:
number of coordinates in coordinate file (1UZ9_ion.gro, 41103)
 does not match topology (1UZ9.top, 41100)

Is there any explanation why is thid happening?

I would appreciate any help. Iam new in using MD and gromac in particular.

Suryanarayana Seera,
PhD student,
Hyderabad,
India.


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Re: [gmx-users] Regarding error.

2012-05-18 Thread Anirban
On Fri, May 18, 2012 at 12:20 PM, Seera Suryanarayana
paluso...@gmail.comwrote:

 Dear all,
 While i am running gromacs software i am getting following
 error.Let me know that error how to over come.


 Fatal error:
 Residue 'CSD' not found in residue topology database


First read:
http://www.gromacs.org/Documentation/Errors#Residue_'XXX'_not_found_in_residue_topology_database

-Anirban






 Suryanarayana Seera,
 PhD student,
 Hyderabad,
 India.





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Re: [gmx-users] Regarding error.

2012-05-18 Thread Mark Abraham

On 18/05/2012 4:50 PM, Seera Suryanarayana wrote:

Dear all,
While i am running gromacs software i am getting following 
error.Let me know that error how to over come.



Fatal error:
Residue 'CSD' not found in residue topology database


Please search for your own answers before posting. You'll learn more and 
faster!


This error, and most others, are discussed here: 
http://www.gromacs.org/Documentation/Errors


Mark
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Re: [gmx-users] Regarding error

2012-04-30 Thread Anirban Ghosh
On Mon, Apr 30, 2012 at 11:50 AM, seera suryanarayana
paluso...@gmail.comwrote:

  Respected Sir,

   While i am running the gromacs software to simulate
 the protein i am getting the following error.

 Fatal error:
 Residue 'GNP' not found in residue topology database


http://www.gromacs.org/Documentation/Errors#Residue_'XXX'_not_found_in_residue_topology_database

-Anirban



 Suryanarayna Seera,
 PhD student.

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Re: [gmx-users] Regarding error in ion neutralization step

2011-11-04 Thread Mark Abraham

On 5/11/2011 1:05 AM, kirubakaran palani wrote:

Dear All

Could any one help me to solve this error in gromacs 4.5.5 version. I 
am running dynamics on apo protein and the protein shows negative 
charge of -6 (after choosing OPLS-AA force filed) and when i was 
neutralizing the -6 with +6 and generating the genion.tpr file there 
it shows No such moleculetype NA+ error. But the same protein was 
running with out any error message in gromacs 4.0.7 version.


The naming convention has changed. See share/top/oplsa.ff/ions.itp

Mark



The error message was given below.

Kindly rectify the problem
===
[student@localhost gro]$ grompp -f em.mdp -p topol.top -c genion.gro 
-o genem.tpr



Ignoring obsolete mdp entry 'cpp'

Back Off! I just backed up mdout.mdp to ./#mdout.mdp.3#
Generated 332520 of the 332520 non-bonded parameter combinations
Generating 1-4 interactions: fudge = 0.5
Generated 332520 of the 332520 1-4 parameter combinations
Excluding 3 bonded neighbours molecule type 'Protein_chain_A'
Excluding 2 bonded neighbours molecule type 'SOL'

---
Program grompp, VERSION 4.5.5
Source code file: toppush.c, line: 1987

Fatal error:
No such moleculetype NA+
For more information and tips for troubleshooting, please check the 
GROMACS

website at http://www.gromacs.org/Documentation/Errors
---




Regards

Kirubakaran P





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Re: [gmx-users] Regarding error during genion step before energy minimization

2011-03-11 Thread Justin A. Lemkul



Meenakshi wrote:

Hi,
I am doing MD simulation of protein-ligand system using G53a6 as 
forcefield. I got the ligand.itp file for ffG53a6 from the ATB 
(Automated Topology Builder) server. I included the ligand.itp in the 
.top file, generated an octahedron solvation box, solvated it and did 
the grompp step before energy minimization. It was fine so far. However, 
when I performed the genion step to neutralize the charge on the system, 
it threw an error:

---
Program genion, VERSION 4.0.5
Source code file: ../../../../src/mdlib/ns.c, line: 2193

Fatal error:
Max #atoms in a charge group: 33  32
---

My ligand has 33 atoms.
While searching the mailing list for a solution to this problem I came 
across this link

http://comments.gmane.org/gmane.science.biology.gromacs.devel/2846

I assume this is a bug in Gromacs 4.0.5. Has the bug been fixed?
Please help me find a solution to this problem.



IIRC, there have been changes to the maximum allowable size to a charge group, 
but instead of thinking of this problem as a bug, you should really consider the 
fact that no sensible charge group should ever have that many atoms, let alone 
encompass an entire molecule!  You will have significant artifacts in nonbonded 
interaction calculations.  Garbage in, garbage out as the saying goes.


-Justin


Thanks,
Meenakshi Pradhan
TCS Innovations Lab
Tata Consultancy Services Ltd
Madhapur, Hyderabad
India
mail: meenak...@atc.tcs.com



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ICTAS Doctoral Scholar
MILES-IGERT Trainee
Department of Biochemistry
Virginia Tech
Blacksburg, VA
jalemkul[at]vt.edu | (540) 231-9080
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Re: [gmx-users] regarding error in editconf

2010-11-04 Thread Justin A. Lemkul



Anamika Awasthi wrote:

Dear friends

   when I am trying command editconf, it is showing error
File input/output error
  I have protein of 700 amino acids  and its of inverted T shape and we 
are giving boxtype dodecahedron.


input command is:


 editconf_d -bt dodecahedron -f input.gro -o box.gro -c -d 10.0




If you're getting an I/O error, then either the input file doesn't exist or you 
don't have permission or sufficient disk space to write the output.  The full 
error message probably would have given more clues, but the reason likely falls 
into one of these categories.


-Justin


with regards

Anamika



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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


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Re: [gmx-users] Regarding Error Atomtype OS not found

2010-04-12 Thread Mark Abraham

On 13/04/2010 1:49 PM, Jignesh Patel wrote:

Hello,

while I am running grompp command, I am getting following error.

Opening library file /usr/local/gromacs/share/gromacs/top/ff_dum.itp
Generated 837 of the 2346 non-bonded parameter combinations
---
Program grompp, VERSION 4.0.5
Source code file: toppush.c, line: 947
Fatal error:
Atomtype OS not found

Can anyone help me to solve this problem?


Yep, they can point out that atom type OS is not found. Since at this 
stage only you know about your topology and system preparation, and more 
particularly why you're trying to #include ff_dum.itp, only you can 
reason why. Perhaps sharing some more detail will help...


Mark
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