AMOEBA's use of higher order multipoles and an induced dipole representation of induction has been developed to accurately reproduce the electrostatic potential around small molecules and amino acid fragments. The results presented here demonstrate that this accurate representation of electrostatics transfers directly to a typical condensed phase biomolecular environment. The ability of MM force fields to reproduce intramolecular electric fields is an experimentally relevant, and increasingly experimentally measurable, property of interest. The use of linear-scaling ONETEP DFT calculations allowed us to evaluate electric fields inside fully atomistic, fully solvated representations of CypA under periodic boundary conditions and in the presence of explicit ions, without simplified or truncated structural models. In the absence of experimental measurements of electric fields in CypA, we compared electric fields calculated with AMOEBA, Amber and Charmm biomolecular force fields with these extensive QM calculations.