👉 A holoproteid is a type of protein that contains two identical copies of each amino acid in its sequence. This means that there are 20 different types of amino acids in a single molecule of protein, with each type being present at the same level of sequence. For example, the amino acid alanine (Alanine) can be found in three different forms: Alanine, Leucine, and Isoleucine. Each of these forms is identical except for the positions where
