Hello,<br><br>I'm sorry if my questions are on the elementary level, as I am still learning how to use GROMACS. I would like perform an MD run on a peptide that has an amidated c-terminal. My understanding is that I can modify my PDB structure to include the NH2 group. Then, with pdb2gmx I use the "-ter" option and select "none" for the C-terminus. Is this correct? What is the best way to edit the PDB file to add the amide group? Can it be done through a structural editor?<br>
<br>Best regards,<br><br>Anna<br>