👉 A multilobular structure is a type of protein that contains multiple domains, which are typically arranged in a way to facilitate protein function. These structures can be found in a variety of cellular organelles and also in other parts of the body where they are important for various functions such as energy production, transport, or signaling. For example, in eukaryotic cells, the endoplasmic reticulum (ER) contains several types of membrane-bound proteins that are involved in protein synthesis