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Table 2 Hydrophilic-hydrophobic classification of amino acids

From: Prediction of acid radical ion binding residues by K-nearest neighbors classifier

Classification

Amino Acids

Classification

Amino Acids

strongly hydrophobic

R, D, E, N, Q, K, H

Proline

P

strongly hydrophilic

L, I, V, A, M, F

Glycine

G

weakly hydrophilic

S, T, Y, W

Cysteine

C