On 11/4/13 5:25 PM, Ehsan Sadeghi wrote:
Hi gmx users,
I want to simulate ionomer is mixed solution of water and ethanol using gromos
force field.
I tired to follow the steps suggested on gromacs website, which are:
1- Determine the number of co-solvent molecules necessary, given the box
Hi gmx users,
I want to simulate ionomer is mixed solution of water and ethanol using gromos
force field.
I tired to follow the steps suggested on gromacs website, which are:
1- Determine the number of co-solvent molecules necessary, given the box
dimensions of your system.
2- Generate a
Ok, thanks.
Peter
On Mar 29, 2013, at 10:22 AM, Justin Lemkul wrote:
> On Fri, Mar 29, 2013 at 1:16 PM, Peter Eastman wrote:
>
>>> Which version of the manual are you using? I recall the discussion on
>> [pairs_nb] being absent in an older version, but manual section 5.3.4 in
>> version 4.6.
On Fri, Mar 29, 2013 at 1:16 PM, Peter Eastman wrote:
> > Which version of the manual are you using? I recall the discussion on
> [pairs_nb] being absent in an older version, but manual section 5.3.4 in
> version 4.6.1 has lots of discussion on [pairs_nb].
>
> I was looking at the 4.5.3 manual.
> Which version of the manual are you using? I recall the discussion on
> [pairs_nb] being absent in an older version, but manual section 5.3.4 in
> version 4.6.1 has lots of discussion on [pairs_nb].
I was looking at the 4.5.3 manual. I just downloaded the 4.6.1 manual, and I
see it now disc
On 3/28/13 8:25 PM, Peter Eastman wrote:
After further study of the documentation, I find myself getting more confused rather than
less. I see that the [pairs] and [pairtypes] directives only specify LJ parameters, not
Coulomb parameters. (There's a function type 2 for [pairs] that does inc
On 3/28/13 7:14 PM, Peter Eastman wrote:
3. If gen-pairs is "yes", then generate parameters for all 1-2, 1-3, and 1-4
pairs for which we did not already find parameters in step 1 or 2 (regardless of whether
or not a [pairs] line exists for a particular pair).
Or rather, generate an [exclusi
After further study of the documentation, I find myself getting more confused
rather than less. I see that the [pairs] and [pairtypes] directives only
specify LJ parameters, not Coulomb parameters. (There's a function type 2 for
[pairs] that does include charges, but the manual says that funct
> 3. If gen-pairs is "yes", then generate parameters for all 1-2, 1-3, and 1-4
> pairs for which we did not already find parameters in step 1 or 2 (regardless
> of whether or not a [pairs] line exists for a particular pair).
Or rather, generate an [exclusions] record for each 1-2 and 1-3, and a
Hi Justin,
So if I understand you correctly, there are actually three different ways the
parameters can be specified. In order of decreasing precedence:
1. If there's a [pairs] line and it includes parameters, use those parameters.
2. If there's a [pairs] line and it doesn't include parameters
On 3/27/13 5:12 PM, Peter Eastman wrote:
I'm implementing a TOP file reader, and I have a question about an ambiguity in
the format. The [ pairs ] block lists atom pairs that should be handled
specially (exclusions and 1-4 interactions). In addition, the gen-pairs flag
can indicate that pa
I'm implementing a TOP file reader, and I have a question about an ambiguity in
the format. The [ pairs ] block lists atom pairs that should be handled
specially (exclusions and 1-4 interactions). In addition, the gen-pairs flag
can indicate that pairs are generated automatically. But all the
On 3/21/13 6:30 AM, Shima Arasteh wrote:
Dears,
As I read in some other messages in mailing list, it is supposed to modify
bonds, angles and dihedrals in top file to define a peptide bond for the last
and first residues as well as other peptide bonds.
I am wondering if it is necessary to def
.
Sincerely,
Shima
From: Justin Lemkul
To: Shima Arasteh
Cc: Discussion list for GROMACS users
Sent: Tuesday, March 19, 2013 9:11 PM
Subject: Re: [gmx-users] Top file modification
On Tue, Mar 19, 2013 at 1:36 PM, Shima Arasteh
wrote:
Would you please let me
On Tue, Mar 19, 2013 at 1:36 PM, Shima Arasteh
wrote:
> Would you please let me know if it is acceptable to add dihedrals and
> angles and bonds? and not to add any pairs to the top? just deleting the
> pairs which are added by pdb2gmx incorrectly to the terminus?
>
>
> And I don't know that if I
How would I be sure that I have added all modifications completely?
Sincerely,
Shima
From: Justin Lemkul
To: Shima Arasteh
Sent: Tuesday, March 19, 2013 9:00 PM
Subject: Re: [gmx-users] Top file modification
On Tue, Mar 19, 2013 at 1:28 PM, Shima Arast
: Shima Arasteh ; Discussion list for GROMACS
users
Sent: Tuesday, March 19, 2013 8:51 PM
Subject: Re: [gmx-users] Top file modification
On Tue, Mar 19, 2013 at 1:07 PM, Shima Arasteh
wrote:
>
> Dear users,
>
>I modified my top file, because I didn't want some bonds. So I d
On Tue, Mar 19, 2013 at 1:07 PM, Shima Arasteh
wrote:
>
>
> Dear users,
>
> I modified my top file, because I didn't want some bonds. So I deleted
> them and changed charges on some atoms.
> I want to go on with such a top file, however I am not sure that these
> changes are implemented properly
Dear users,
I modified my top file, because I didn't want some bonds. So I deleted them and
changed charges on some atoms.
I want to go on with such a top file, however I am not sure that these changes
are implemented properly or not. Would you please let me know if what I did is
right or n
If it works then you are right :)
2013/3/19 shahid nayeem
> I did it. Simply I changed the name of Cys which forms interchain
> dsiulfide bond to CYS2 in the separated pdb file and I used G43a1
> forcefeild to run pdb2gmx. This gives a topology with same number of
> atom which is present in .xt
I did it. Simply I changed the name of Cys which forms interchain
dsiulfide bond to CYS2 in the separated pdb file and I used G43a1
forcefeild to run pdb2gmx. This gives a topology with same number of
atom which is present in .xtc file. CYS2 is present .rtp file of G43a1
forcefeild probably to form
Could you simply edit the file and removing the atom from [atoms] section ?
grompp wil complain regarding the line containing interactions. But also
these
few lines can be removed. Otherwise, vmd has the TopoTools that write the
.top
topology of the loaded pdb. Unfortunately, this topologyes are no
Thanks Francesco.
But my problem is exactly opposite. I do have a .top file containing
both chain linked by disulfide bridge. I ran the simulation. Now I
have extracted .xtc file for each chain separately and I want the
corresponding, separate .top file for each chain. when I separate the
pdb and r
Hi,
if you were able to obtain a simulation it means you had a valid .top file!
In any case, gromacs recognises disulfide basing on the distance beween the
SG atoms.
In addition, the two chains are supposed to be in the same molecule.
So, my advice is, remove all the TER from pdb (but the last one)
Hi
To be more clear I have .xtc file for a disulfide linked complex of
two chains. From this trajectory I can extract .xtc file for
individual chains. But when I generate .top file from individual chain
pdb I get one atom extra in .top file i.e. protonated SG of Cys which
I dont need in order to ma
On 3/18/13 12:35 PM, shahid nayeem wrote:
Hi
Is it possible to write .top file from .xtc and .tpr using index.ndx
so that .top is available for tailormade components of simulated
protein.
All topology information is in the .tpr, but not in .top format. You may be
able to post-process the o
On 8/7/12 5:33 AM, Shima Arasteh wrote:
Dear gmx users,
I need to check a line of angle section in .top file. It is written:
2 1 3 5
What does the numbers show? the atom numbers of .pdb file? How can I check this
line?
The first three are atom numbers within the corre
Dear gmx users,
I need to check a line of angle section in .top file. It is written:
2 1 3 5
What does the numbers show? the atom numbers of .pdb file? How can I check this
line?
Thanks for your help.
Sincerely,
Shima
--
gmx-users mailing listgmx-users@gromacs.org
http:
On 7/8/12 3:12 AM, Shima Arasteh wrote:
Dear gmx users,
I have gotten 2 topology files from a unique simulation ( a protein in water)
with gmx and CHARMM36. I know the charges of atoms derived by PRODRG and
CGENFF are different, but I'm wondering if the total charge which is visible i
Dear gmx users,
I have gotten 2 topology files from a unique simulation ( a protein in water)
with gmx and CHARMM36. I know the charges of atoms derived by PRODRG and
CGENFF are different, but I'm wondering if the total charge which is visible in
top file, is supposed to be the same? What
On 6/29/12 3:55 PM, sreeta.g wrote:
Hello
My A.gro file is:
1PvB CB1 3.109 2.784 0.803 0. 0. 0.
1PvBHB12 3.156 2.880 0.843 0. 0. 0.
1PvBHB23 2.997 2.797 0.819 0. 0. 0.
1PvBHB34 3.12
Hello
My A.gro file is:
1PvB CB1 3.109 2.784 0.803 0. 0. 0.
1PvBHB12 3.156 2.880 0.843 0. 0. 0.
1PvBHB23 2.997 2.797 0.819 0. 0. 0.
1PvBHB34 3.129 2.765 0.693 0. 0. 0.
On 6/26/12 1:52 AM, Shima Arasteh wrote:
Dear gmx users,
I have a problem about the topology output of pdb2gmx.
There is a formyl residue as N-terminal in my .pdb file. I know that the pdb
file is correct in agreement with RCSB .pdb files.
The
force field I have to use is gmx ( I need to
Dear gmx users,
I have a problem about the topology output of pdb2gmx.
There is a formyl residue as N-terminal in my .pdb file. I know that the pdb
file is correct in agreement with RCSB .pdb files.
The
force field I have to use is gmx ( I need to regenerate
some results ), so I defined the
*From:* Shima Arasteh
*To:* Discussion list for GROMACS users
*Sent:* Monday, April 23, 2012 3:05 PM
*Subject:* [gmx-users] .top file for POPC membrane
Dear all gmx users,
I performed the pdb2gmx to get the .top file, but I faced this error: " Residue
'POP' not found in residue to
I made it as the format of .top and .itp files, but still get the same error.
From: Shima Arasteh
To: Discussion list for GROMACS users
Sent: Monday, April 23, 2012 3:05 PM
Subject: [gmx-users] .top file for POPC membrane
Dear all gmx users,
I performed
Dear all gmx users,
I performed the pdb2gmx to get the .top file, but I faced this error: " Residue
'POP' not found in residue topology database ". So I decided to make a top file.
How can I make the .top file for popc.itp?
Anybody can guide me please?
Thanks in advance,
Shima
--
gmx-users ma
Okay, thanks, I'll stick to Amber then.
Thanks again,
Majid
From: Justin A. Lemkul
To: Gromacs Users' List
Sent: Sun, April 17, 2011 6:35:07 PM
Subject: Re: [gmx-users] .top file for DNA-CNT
majid hasan wrote:
> Okay, so I just removed #inclu
ttp://www.gromacs.org/Documentation/How-tos/Parameterization
-Justin
Thanks for your help,
Majid
*From:* Justin A. Lemkul
*To:* Discussion list for GROMACS users
*Sent:* Sun, April 17, 2011 4:54:11 PM
*Subject:* Re: [gmx-us
list for GROMACS users
Sent: Sun, April 17, 2011 4:54:11 PM
Subject: Re: [gmx-users] .top file for DNA-CNT
majid hasan wrote:
> Dear All,
>
> I want to simulate DNA-CNT interaction, and reproduce the helical wrapping of
>DNA around CNT in the first step, and later study the effect
majid hasan wrote:
Dear All,
I want to simulate DNA-CNT interaction, and reproduce the helical
wrapping of DNA around CNT in the first step, and later study the
effects of temperature, CNT length etc on the favorable geometries of
hybrid.
I have created .top files for DNA, and CNT separat
Dear All,
I want to simulate DNA-CNT interaction, and reproduce the helical wrapping of
DNA around CNT in the first step, and later study the effects of temperature,
CNT length etc on the favorable geometries of hybrid.
I have created .top files for DNA, and CNT separately. To generate the top
Hi,
It works. Thanks a lot.
Sincerely,
Qian
- Original Message -
From: "Justin A. Lemkul"
Date: Wednesday, October 13, 2010 2:28 am
Subject: Re: [gmx-users] top file for two seperate peptides
To: Gromacs Users' List
>
>
> Qian Wang wrote:
> >Hi,
&
ber 13, 2010 2:08 am
Subject: Re: [gmx-users] top file for two seperate peptides
To: Discussion list for GROMACS users
>
>
> Qian Wang wrote:
> >Hi,
> > I want to simulate two seperate peptids in one box. However,
> when I use pdb2gmx to build the top file of this system, I
- Original Message -
From: "Justin A. Lemkul"
Date: Wednesday, October 13, 2010 2:08 am
Subject: Re: [gmx-users] top file for two seperate peptides
To: Discussion list for GROMACS users
>
>
> Qian Wang wrote:
> >Hi,
> > I want to simulate two seperate peptids in o
Qian Wang wrote:
Hi,
I want to simulate two seperate peptids in one box. However, when I use
pdb2gmx to build the top file of this system, I found that gromacs
thought there is only one peptide because it added bond, angle and other
energy terms between the termius of these two peptides. I
Hi,
I want to simulate two seperate peptids in one box. However, when I use pdb2gmx
to build the top file of this system, I found that gromacs thought there is
only one peptide because it added bond, angle and other energy terms between
the termius of these two peptides. Is there any way to pr
jojo J wrote:
Hello,
Thank you for your answer. I mean if I need to go back and comment those
lines. (if the results are trusted ..actually I forgot to comment the
lines..)
There's no need to comment out lines referring to solvent, ions, etc if they are
not present. These statements j
Hello,
Thank you for your answer. I mean if I need to go back and comment those
lines. (if the results are trusted ..actually I forgot to comment the
lines..)
On 8 July 2010 23:10, Justin A. Lemkul wrote:
>
>
> jojo J wrote:
>
>> Helllo,
>>
>> I got top file using pdb2gmx but I did not commen
jojo J wrote:
Helllo,
I got top file using pdb2gmx but I did not comment unnecessary lines at
the end of the file ( no water in my system
). With this top file I energy minimized my system. I wanted to know if
I am fine ...?
Depends on your definition of "fine." Do you mean to ask if yo
Helllo,
I got top file using pdb2gmx but I did not comment unnecessary lines at the
end of the file ( no water in my system
). With this top file I energy minimized my system. I wanted to know if I am
fine ...?
Thank you,
--
gmx-users mailing listgmx-users@gromacs.org
http://lists.gromacs.or
Francesco Pietra wrote:
Hi Justin:
Could you please indicate the location of such scripts?
They're on the MARTINI website, but given the further description of your
system, they won't solve your problem. What I was referring to were scripts to
build protein topologies. They won't help in
Hi Justin:
Could you please indicate the location of such scripts?
I have no trouble (in generating the .tpr file) with protein partly
embedded in a double layer, by counting graphically the lipid residues
and W residues remaining after creating the hole for the protein pore
region.
My trouble is
Francesco Pietra wrote:
Hi:
As I meet recurring problems in coarse-grained of the top file not
matching the number of coordinates in coordinate file, is there any
way to get the top file automatically like in all-atoms? Editing the
top file to this regard proved difficult in my hands.
I'm a
Hi:
As I meet recurring problems in coarse-grained of the top file not
matching the number of coordinates in coordinate file, is there any
way to get the top file automatically like in all-atoms? Editing the
top file to this regard proved difficult in my hands.
thanks
francesco pietra
___
sunny mishra wrote:
Hi Mark,
I am sorry that I was not accurate in my scripts and I will not repeat this
mistake again. Justin advised me that if the atoms are missing in .itp file
and .gro file (Some of them are actually missing) then I have to model the
atoms back in the ORIGINAL PDB file but
Hi Mark,
I am sorry that I was not accurate in my scripts and I will not repeat this
mistake again. Justin advised me that if the atoms are missing in .itp file
and .gro file (Some of them are actually missing) then I have to model the
atoms back in the ORIGINAL PDB file but I din't quite get him.
sunny mishra wrote:
Hi Mark and Justin,
Thanks for the valuable advise and I want to do the last test but before I
proceed I just want to make sure If I am doing everything correct.
Justin's advice was also very sound. If your model lacks relevant atoms,
you have more work to do. Surely the MA
As I said before, the original PDB file is missing atoms. You have to model
them back in before you do anything else, otherwise MARTINI will expect them to
be there and they won't be!
-Justin
sunny mishra wrote:
Hi Justin and Mark,
I just realized that I have some missing atoms in my .gro
Hi Justin and Mark,
I just realized that I have some missing atoms in my .gro file when I
compared with .itp file and may be this is causing the problem. The atoms
which are missing what should I do with them. Should I delete both from .itp
and .gro file OR do i have to add in my .gro file and if I
Alright. Sounds good to me. let me check that out and i will let you know
the progress.
Thanks,
Sunny
On Wed, Aug 19, 2009 at 7:19 PM, Justin A. Lemkul wrote:
>
>
> sunny mishra wrote:
>
>> Hi Mark and Justin,
>>
>> Thanks for the valuable advise and I want to do the last test but before I
>>
sunny mishra wrote:
Hi Mark and Justin,
Thanks for the valuable advise and I want to do the last test but before
I proceed I just want to make sure If I am doing everything correct.
I got the 1K4C_cleanCG.seq file using grep command like this
grep -A 1 1K4c_clean CG 1K4C_cleanCG.txt > 1K4C
Hi Mark and Justin,
Thanks for the valuable advise and I want to do the last test but before I
proceed I just want to make sure If I am doing everything correct.
I got the 1K4C_cleanCG.seq file using grep command like this
grep -A 1 1K4c_clean CG 1K4C_cleanCG.txt > 1K4C_cleanCG.seq
Now my next s
In addition to everything Mark said, also realize that there may be a
fundamental problem in everything you are doing: there are missing atoms in the
original 1K4C structure. If you have not modeled them back in, the appropriate
CG particles will not necessarily all be placed in your CG struc
sunny mishra wrote:
Hi Justin,
Thanks for the reply and here is the following which I am doing. I would
appreciate if you can point out my errors.
1) I am working on 1K4C (KcSA) and i downloaded that from www.pdb.org and
after that I cleaned the PBD file, removed all the HETATOMS and ATOMS wit
Hi Justin,
Thanks for the reply and here is the following which I am doing. I would
appreciate if you can point out my errors.
1) I am working on 1K4C (KcSA) and i downloaded that from www.pdb.org and
after that I cleaned the PBD file, removed all the HETATOMS and ATOMS with
ligand A & B and als
sunny mishra wrote:
Hi,
I checked both the files they match exactly but still I get the same
error message that .gro file and .top file dnt match. I dnt know how to
proceed now.
Well, something has to be wrong, or else grompp wouldn't complain. You say
you've checked the .top, but have
Hi,
I checked both the files they match exactly but still I get the same error
message that .gro file and .top file dnt match. I dnt know how to proceed
now.
Sunny
On Tue, Aug 18, 2009 at 8:18 PM, sunny mishra wrote:
> Ok..I will see that and let you know. Thanks for the help though.
> Sunny
>
>
Ok..I will see that and let you know. Thanks for the help though.
Sunny
On Tue, Aug 18, 2009 at 8:12 PM, Mark Abraham wrote:
> sunny mishra wrote:
>
>> I did the same but again i get the same error..something like this
>>
>> awk -f atom2cg_v2.1tryout.awk 1K4C.pdb > 1K4C_cg.pdb
>>
>> (This generat
sunny mishra wrote:
I did the same but again i get the same error..something like this
awk -f atom2cg_v2.1tryout.awk 1K4C.pdb > 1K4C_cg.pdb
(This generated 1K4C_cg.pdb file)
genbox -cp 1K4C_cg.pdb -box 10 10 10 -o 1K4C_cg.gro
(produced 1K4C_cg.gro)
GROningen MAchine for Chemical Simulation
I did the same but again i get the same error..something like this
awk -f atom2cg_v2.1tryout.awk 1K4C.pdb > 1K4C_cg.pdb
(This generated 1K4C_cg.pdb file)
genbox -cp 1K4C_cg.pdb -box 10 10 10 -o 1K4C_cg.gro
(produced 1K4C_cg.gro)
GROningen MAchine for Chemical Simulation
sunny mishra wrote:
Alright sounds good to me. In order to make it sure once againI have
to do something like this...
awk -f atom2cg.awk 1K4C.pdb > 1K4C_cg.pdb
and thento get the .gro file
genbox -cp 1K4C_cg.pdb -box 10 10 10 -o 1K4C_cg.gro
Or you can use editconf, but genb
Alright sounds good to me. In order to make it sure once againI have to
do something like this...
awk -f atom2cg.awk 1K4C.pdb > 1K4C_cg.pdb
and thento get the .gro file
genbox -cp 1K4C_cg.pdb -box 10 10 10 -o 1K4C_cg.gro
and then..
grompp -f em.mdp -c 1K4C_cg.gro -p 1K4C.top -ma
sunny mishra wrote:
Hi Justin,
I am using these commands...
genbox -cp 1K4C.pdb -box 10 10 10 -o 1K4C.gro
from here I can get my 1K4C.gro file.
As far as CG structure of protein is concerned I can produce the CG
structure using awk script like this..
awk -f atom2cg.awk 1K4C.pdb > 1K4C_CG
Hi Justin,
I am using these commands...
genbox -cp 1K4C.pdb -box 10 10 10 -o 1K4C.gro
from here I can get my 1K4C.gro file.
As far as CG structure of protein is concerned I can produce the CG
structure using awk script like this..
awk -f atom2cg.awk 1K4C.pdb > 1K4C_CG.pdb
But after getting th
sunny mishra wrote:
Ok. Thanks but I am doing a small test to make the .top file and .gro
files of fresh 1K4C protein structure without removing anything but when
I run my grommp command to minimize it as I asked earlier as well it
says number of atoms in the .top are not equal to .top file a
Ok. Thanks but I am doing a small test to make the .top file and .gro files
of fresh 1K4C protein structure without removing anything but when I run my
grommp command to minimize it as I asked earlier as well it says number of
atoms in the .top are not equal to .top file and as you said that withou
sunny mishra wrote:
Hi all,
Is there anyway I can generate the .gro file from .top file without
using the command pdb2gmx and editconf?
A .top file is a topology - atomic descriptions; a .gro is a coordinate file.
They are unrelated and therefore cannot be inter-converted.
-Justin
-
Hi all,
Is there anyway I can generate the .gro file from .top file without using
the command pdb2gmx and editconf?
___
gmx-users mailing listgmx-users@gromacs.org
http://lists.gromacs.org/mailman/listinfo/gmx-users
Please search the archive at http:/
Bhawana Gupta wrote:
hello everyone,
while doing grompp for prest by giving command
grompp -f *_md_water_prest.mdp -c *_md_water_em.gro -p *.top -o
*_md_water_prest.tpr
*i get the error*
--
Program grompp, VERSION 4.0
Source code file: top
hello everyone,
while doing grompp for prest by giving command
grompp -f *_md_water_prest.mdp -c *_md_water_em.gro -p *.top -o
*_md_water_prest.tpr
*i get the error*
--
Program grompp, VERSION 4.0
Source code file: toppush.c, line: 1196
Fatal e
[EMAIL PROTECTED] wrote:
Dear Community,
I am trying to manually define a .top file of an organic molecule (a
modified bisphosphonate). I am not a gromacs user but a lab mate is, so he
will make the run.
It has been several days since I started to search for a text where the
.top format is
Dear Community,
I am trying to manually define a .top file of an organic molecule (a
modified bisphosphonate). I am not a gromacs user but a lab mate is, so he
will make the run.
It has been several days since I started to search for a text where the
.top format is depicted in detail but the o
Send more information. what .itp and .top files are you using? what was your
pdb2gmx command? what were the 3 or 4 lines on either side of the error message
(cut and paste them)?
>hi
>i run pdbgmx2 for popc but errore message is here:
>wrong format is in ffg43a2.h
>line 2 7 ow
>whould you
hi
i run pdbgmx2 for popc but errore message is here:
wrong format is in ffg43a2.h
line 2 7 ow
whould you please help me?
thanks
mahboobeh
__
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Ashutosh Jogalekar wrote:
I have a simple question; is the .top file a formatted file?
I am trying to put in some RB dihedral parameters in the file for an
unnatural acid. My question is; does the exact spacing of the lines
matter?
For example, if c0, c1, c2, c3, and c4 are the coefficients f
Ashutosh Jogalekar wrote:
I have a simple question; is the .top file a formatted file?
I am trying to put in some RB dihedral parameters in the file for an
unnatural acid. My question is; does the exact spacing of the lines
matter?
Where the documentation in chapter 5 talks about needing in
I have a simple question; is the .top file a formatted file?
I am trying to put in some RB dihedral parameters in the file for an
unnatural acid. My question is; does the exact spacing of the lines
matter?
For example, if c0, c1, c2, c3, and c4 are the coefficients for some
dihedral combinat
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