👉 Antihelices are a type of helix that is found in some proteins. They are made up of two strands, one being shorter and one longer than the other. The longer strand usually forms the main structure of the protein, while the shorter strand acts as a secondary structure to stabilize it. Antihelices can be either helical or planar, depending on how they are arranged in the protein. They have been found in a variety of proteins, including those involved in hormone production