What is a membrane protein with a glycocalyx attached called?

A membrane protein with a glycocalyx attached is referred to as a glycoprotein. Glycoproteins are formed when carbohydrates (the glycocalyx) covalently bind to proteins. This modification plays a crucial role in cellular functions, as the glycocalyx can influence the protein's shape, stability, and functionality. Glycoproteins are abundant on the surface of cells and are important for cell recognition, signaling, and interaction with other cells and the extracellular matrix.

The presence of the glycocalyx, which is often composed of oligosaccharides, contributes to various biological processes, including immune responses and the protection of cells. Therefore, the identification of such a protein as a glycoprotein is significant because it highlights the importance of carbohydrate modifications in membrane proteins and their roles in physiological processes.