Lipid-protein interactions refer to the interactions between lipids (such as phospholipids or cholesterol) and proteins within biological membranes. These interactions play crucial roles in many cellular processes, including signal transduction, membrane trafficking, and membrane protein function. Studies in this research area aim to understand the mechanisms by which lipids and proteins interact, how these interactions influence protein structure and function, and how they contribute to cellular processes and disease. Techniques such as X-ray crystallography, nuclear magnetic resonance (NMR) spectroscopy, and fluorescence spectroscopy are commonly used to study lipid-protein interactions at the molecular level. Overall, research in lipid-protein interactions is essential for gaining insight into the complex and dynamic nature of biological membranes and their role in cellular physiology and pathology.