Tool to produce GROMACS topologies for small molecules using the acpype interface to AmberTools.
Input
Either a mol2 file (more appropriate for small structures) or a pdb file. If you want to parameterize a large macromolecule (which is more likely to be stored in PDB format, e.g. a protein) consider using a tool such as 'GROMACS initial setup' instead.
Outputs
GROMACS topology for the ligand, in itp format. Optional: structure file, in gro format.