Re: [gmx-users] Hydrogen bonds for particular residue during simulations.

2018-01-22 Thread Justin Lemkul
On 1/22/18 5:58 AM, Seera Suryanarayana wrote: Dear gromacs users, I have done simulations of 20 residue length of peptide for 100ns. I want to find hydrogen bonds for residue GLU-7. The topology information for this residue as follow. ; residue 7 GLU rtp GLU q -1.0 121 opls_238

Re: [gmx-users] Hydrogen bonds

2015-07-04 Thread Dr. Seema Mishra
 Thanks, I will try this option too. But now I would want to look at the particular hydrogen bonds between protein and ligand if these h bonds are present after the simulations. So, please let me know how can I interpret this data that I sent? --- On Saturday, 4 July 2015 11:49 AM,

Re: [gmx-users] Hydrogen bonds

2015-07-04 Thread soumadwip ghosh
Hi, the -hbn option in g_hbond in connection to your issue of determining the hydrogen bond lifetime or stability does not tell you much. What you should be looking at is running the g_hbond with -ac flag which gives you the lifetime and H-bond formation energy between two groups specified by

Re: [gmx-users] Hydrogen bonds

2015-07-04 Thread Justin Lemkul
On 7/4/15 3:05 AM, Dr. Seema Mishra wrote: Thanks, I will try this option too. But now I would want to look at the particular hydrogen bonds between protein and ligand if these h bonds are present after the simulations. So, please let me know how can I interpret this data that I sent? ---

Re: [gmx-users] Hydrogen bonds

2015-07-04 Thread soumadwip ghosh
As a said the -hbn option in g_hbond is probably not informative in your case. First tell us what do you really want to observe? The no. of hydrogen bonds between specific amino acid residues and your ligand binding sites? If yes, use g_hbond with -num option that will give you the exact no of

Re: [gmx-users] Hydrogen bonds between new residue and protein.

2014-08-20 Thread Dawid das
I found one problem. If I create new group in index.ndx file which contains protein without CH6 residue then some h-bonds are detected but actually I wouldn't expect it the way it looks. So again, how does actually g_hbond calculate hydrogen bonds except the distance and angle restraints. Does it

Re: [gmx-users] Hydrogen bonds between new residue and protein.

2014-08-20 Thread Justin Lemkul
On 8/20/14, 12:02 PM, Dawid das wrote: I found one problem. If I create new group in index.ndx file which contains protein without CH6 residue then some h-bonds are detected but actually I wouldn't expect it the way it looks. So again, how does actually g_hbond calculate hydrogen bonds except

Re: [gmx-users] Hydrogen bonds

2014-05-28 Thread Erik Marklund
Hi, You need to inspect the -hbm and -hbn output. It's the complete existence matrix for all h-bonds encountered in the analysis and a list of corresponding acceptor-H-donor triads. Consequently those files are usually rather big, but that's where the information is. Inspect the bonds you find

Re: [gmx-users] Hydrogen bonds

2014-05-28 Thread Justin Lemkul
On 5/28/14, 12:59 AM, bharat gupta wrote: Hi, I want to find the interacting hydrogen bonding residues with the residue of my choice. I made an index for the residue for which I want to find the hydrogen bonds and I get the number of hydrogen bond it makes during the simulation. But how can I