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Table 5 Amino acid classification according to their physiochemical properties.

From: Protein inter-domain linker prediction using Random Forest and amino acid physiochemical properties

Peoperty Value Amino acids
Charge Positive H, K, R
  Negative D, E
  Neutral A, C, F, G, I, L, M, N, P, Q, S, T, V, W, Y
Polatity Polar C, D, E, H, K, N, Q, R, S, T, Y
  Non-polar A, F, G, I, L, M, P, V, W
Aromaticity Aliphatic I, L, V
  Aromatic F, H, W, Y
  Neutral A, C, D, E, G, K, M, N, P, Q, R, S, T
Size Small A, G, P, S
  Medium D, N, T
  Large C, E, F, H, I, K, L, M, Q, R, V, W, Y,
Electronic Strong donor A, D, E, P
  Weak donor I, L, V
  Neutral C, G, H, S, W
  Weak acceptor F, M, Q, T, Y
  Strong acceptor K, N, R