Open tdudgeon opened 3 years ago
OpenMM Topologies don't store formal charges for atoms, and therefore don't write them to PDB files. Very few programs ever look at that field. When running a simulation, the charges are worked out based on the set of atoms present.
When adding hydrogens I'm finding that ASP and GLU are not be handled as I would expect.
pdbfixer protein.pdb --add-atoms=all --ph=7 Before:
After:
Note how a H was not added to the OD2 atom (that's OK), but that the negative charge has been lost.