I have tried in a number of ways to run a simulation of two peptides that are bridged with a disulfide bond, but in all cases the plugin breaks the disulfide (forming two cysteines) resulting in the two peptides diffusing away from each other. Even in restrained MD runs, where I have selected the two sulfur atoms as the restraint, the peptides diffuse away. Is there something wrong with my PDB file (attached below)?
Hi Clint,
Please ask GROMACS community how to correctly set up your simulation. After you acquire such a knowledge, you can then use the plugin to implement it.
Hello,
I have tried in a number of ways to run a simulation of two peptides that are bridged with a disulfide bond, but in all cases the plugin breaks the disulfide (forming two cysteines) resulting in the two peptides diffusing away from each other. Even in restrained MD runs, where I have selected the two sulfur atoms as the restraint, the peptides diffuse away. Is there something wrong with my PDB file (attached below)?
Thanks!
Clint Postdoctoral Fellow University of Michigan
tethered_peptides.txt