[gmx-users] Brefeldin A and GDP parameters

2016-01-25 Thread Jeremy T First
Hello all, Has anyone parameterized Brefeldin A or GDP for Amber force fields? I wish to simulate a protein with BFA and GDP as ligands, but have so far been unable to find parameters for these molecules. I have a procedure to do so using RED and Gamess, but understand this is a difficult

Re: [gmx-users] hbond hydroxyl oxygen, both acceptor and donor?

2016-07-18 Thread Jeremy T First
Ah thank you! This fixed the problem. Jeremy Todd First Webb Research Group University of Texas at Austin jeremy_fi...@utexas.edu On Mon, Jul 18, 2016 at 3:31 PM, Justin Lemkul <jalem...@vt.edu> wrote: > > > On 7/18/16 4:27 PM, Jeremy T First wrote: > >> Hello, >>

[gmx-users] hbond hydroxyl oxygen, both acceptor and donor?

2016-07-18 Thread Jeremy T First
Hello, I am attempting to quantify the amount of hydrogen bonding environment a certain residue experiences during the course of a simulation. To do this, I am using gmx hbond to plot the number of hydrogen bonds between the solvent (water) and the hydroxyl oxygen of the residue as a function of

Re: [gmx-users] Regarding calculation of Hydrogen-Bond

2018-03-13 Thread Jeremy T First
Hi Dilip, There is quite a bit of literature, especially recently, that considers the alpha carbon as a hydrogen bond donor. How well this is represented in your simulation will depend on your force field. You will likely need to develop your own gromacs tool to calculate this, but it should be