👉 Peridinid is a type of protein that appears on the surface of living cells. It is a type of adhesive protein and is found in the extracellular matrix of many types of cells, including bone, cartilage, and blood vessels. Peridinids are responsible for the interaction between these cells and their environment, and they play important roles in maintaining homeostasis and tissue integrity. Peridinids can be classified into two main categories: type I peridinids (also