Proteins: Structure and Function

This lecture covers the structure and function of various proteins, including defence proteins like defensins and antibodies, structural proteins like collagen and actin, regulatory proteins like insulin, and other proteins like the Green Fluorescent Protein. It also discusses the diversity of antibodies, the production of collagen, the role of actin in cellular functions, the regulation of metabolism by insulin, and the mechanism of action of steroid receptors. The lecture concludes by exploring the concept of protein machines in cell function.