Amino acid	Atomic charge	Atomic charge
ASP	OD1 = −0.76	OD2 = −0.76
GLU	OE1 = −0.76	OE2 = −0.76
ARG	NH1 = 0.80	NH1 = 0.80
LYS	NZ = 0.30
HIS	ND1 = 0.38	NE2 = 0.57