👉 Protamine is a substance found in certain types of fungi, especially those belonging to the order Nocardiales. It is also known as malachite green or green malachite. Protamines are used in the production of various pharmaceuticals and cosmetics due to their unique physical properties. They can be extracted from plants such as "Acer caespitum" (a type of fungus) or from animal products like "Ehrenfeldia sp."