GP41

GP41 is a crucial component of the envelope protein of the Human Immunodeficiency Virus (HIV), with its structure comprising an extracellular domain, a transmembrane domain, and an intracellular domain. The primary function of GP41 lies in mediating the fusion of the HIV virus with the target cell membrane, thus facilitating viral entry into the cell. During the viral infection process, specific domains in the extracellular region form a six-helix bundle structure, drawing the virus membrane closer to the target cell membrane to achieve membrane fusion. Additionally, GP41 is involved in biological processes such as viral replication and assembly, making it essential for the HIV lifecycle. Consequently, GP41 is not only a critical link in the HIV infection mechanism but also one of the significant targets for antiviral drug development. In-depth research into its structure and function is of great significance for the treatment and prevention of HIV.