Name of the Group

Related Amino acid residues

Helix (H)

Ala (A), Glu (E), His (H), Lys (K), Leu (L), Met (M) and Gln (Q)

Sheet (E)

Cys (C), Phe (F), Ile (I), Thr (T), Val (V), Trp (W) and Tyr (Y)

Coiled (C)

Asp (D), Gly (G), Asn (N), Pro (P) and Ser (S)