👉 A varioloid is a type of protein that contains a single amino acid, which can be any one of the following: Leucine (L), Isoleucine (I), Valine (V), Lysine (Y), Threonine (T), Tryptophan (P), Serine (S), Thr氨酸 (T), and Tyr氨酸 (Y). These amino acids are known as leucines, isoleucines, valines, lysines,