hello!
I am quiet beginner in Gromacs. I want to do adsorption of
tryptophan on Au(1 1 1) surface. Please help me that how can I construct
the gold surface in gromacs and how to adsorb tryptophan on that surface.
Regards
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Dear users,
Anyone knows how can I use trjconv to convert an xtc file to pdb format without
need to tpr file ?
Thanks,
Neda
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Please any one tell me that on what basis the time calculations occurs that is
in pico seconds
Sent from Mail for Windows 10
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Hello gmx-users!
I want to simulate a membrane protein, where it sets across the membrane
(means that some of the protein's region lays outside the membrane and is
water exposed). Obviously, the protein will be experiencing two different
environments like membrane and water (heterogeneous conditio
Hello Justin,
Thank you so much for your reply!
I followed what you suggested. Please correct me if I misunderstood;
1- I used acpype to generate the parameters (charges, atom types, and
bonded parameters) for the monomer, which create many files including
GMX_OPLS.itp , GMX_OPLS.top and GMX.gro
Hello,
I am trying to run a CG simulation with only non-bonded interactions. I
have obtained the tabulated potentials for those interactions by
force-matching using VOTCA. I want all my bonds and angles to be
constrained as they are in the initial cg_conf.gro file. Since I do not
have tabulated po
blockquote, div.yahoo_quoted { margin-left: 0 !important; border-left:1px
#715FFA solid !important; padding-left:1ex !important; background-color:white
!important; } Hi justin
Thank you for your replyingBut you said in this tuturial, in order to have
tc_groups = protein non-protein , it is bes
Oh, I'm sorry for misleading you. You need use
-ter
The -noter means that you DON'T want to choose protonation yourself.
Give this one a try.
2017-08-06 20:38 GMT+02:00 ZHANG Cheng <272699...@qq.com>:
> Hi Dawid,
> Thank you. However, I still got three hydrogens after running:
>
>
> gmx pdb2gmx
Hi Dawid,
Thank you. However, I still got three hydrogens after running:
gmx pdb2gmx -f gly_clean.pdb -o gly_processed.gro -water spce -noter
gly_processed.gro:
Glycine aRginine prOline Methionine Alanine Cystine Serine10 3936GLY
N1 -0.191 -0.011 -0.008 3936GLY H12
Hi Cheng,
By default, the termini of a polypeptide are charged. You need option
-noter
in your gmx pdb2gmx command to interactively tell it what charge (no charge
in your case)
you want for your termini.
Best wishes,
Dawid
2017-08-06 20:20 GMT+02:00 ZHANG Cheng <272699...@qq.com>:
> Hi Mark,
>
Hi Mark,
Thank you. I have a glycine PDB:
ATOM 1 N GLY 3936 -1.908 -0.113 -0.081 1.00 20.00
ATOM 2 CA GLY 3936 -0.753 0.774 0.097 1.00 20.00
ATOM 3 C GLY 3936 0.558 0.024 0.014 1.00 20.00
ATOM 4 O GLY 3936 0.474 -1.274 0.036
Hi,
Prodrg is not gromacs software, so there is probably a better place to ask
this question. I'd also look at their docs to find out how to suggest a
carboxylic acid.
Mark
On Sun, 6 Aug 2017 18:09 ZHANG Cheng <272699...@qq.com> wrote:
> Dear Gromacs,
> I would like to perform simulations for a
Dear Gromacs,
I would like to perform simulations for a protein with glycines.
I think I should use "insert-molecules" as shown on
http://www.bevanlab.biochem.vt.edu/Pages/Personal/justin/gmx-tutorials/biphasic/01_genconf.html
So I went to PRODRG2 Server to obtain the glycine structure by "tex
Write a program that identifies contacts within a given radius...?
> On Aug 6, 2017, at 08:53, Sameer Edirisinghe wrote:
>
> Dear all,
>
> I need to identify clusters in my polymer system. I have 200ns simulation
> trajectory and using this how can I identify the clusters existing in my
> syste
Dear all,
I have done 200ns simulation for my polymeric system and I want to map all
existing nonbonded interactions (i.e. H bonds) in my system over the time.
Can anyone suggest me a method for this?
Regards
Bhagya karunarathna
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Dear all,
I need to identify clusters in my polymer system. I have 200ns simulation
trajectory and using this how can I identify the clusters existing in my
system over the time? Need to find which molecules form the cluster. Can
anyone suggest a method to do this?
Regards
Bhagya Karunarathna
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Hi,
You need to insert ligand/small molecule information in top file, follow
the tutorial
http://www.bevanlab.biochem.vt.edu/Pages/Personal/justin/gmx-tutorials/complex/02_topology.html
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