Our protein has a bound FMN and the various tools accessible via Chimera are not able to apply charges to the atoms in FMN.  However I have NBO charges for all the atoms from DFT calculations. Is there a way I can provide these to the FMN in my pdb file or in my Chimera session in order to then display a Coulomb electrostatic potential for the protein + FMN?  My charges are not simply +1 or -1, but fractional charges for each atom.  Can Chimera accommodate this ?  If not, no problem, I will still benefit greatly even if all I can do is add -1 to the one atom at which most of the excess electron density is concentrated.

Many Thanks,

Anne-Frances