Structures of Amino Acids Acidic Amino Acids Aspartic Asp 0 133 0 1.88 9.60 3.65 2.77 acid O H3N Glutamic Glu E 147 2.19 9.67 4.25 3.22 acid H3N Basic Amino Acids +NH2 Arginine Arg R 174 2.17 9.04 12.48 10.76 H>N Histidine His H 155 1.82 9.17 6.00 7.59 H3 Lysine Lys 146 H3 2.18 8.95 10.53 9.74 Cengage Learning.All Rights Reserved.Structures of Amino Acids