The Human Immunodeficiency Virus (HIV) specifically targets helper T-lymphocytes. Which surface molecule acts as the primary receptor for viral attachment?
Q1. The Human Immunodeficiency Virus (HIV) specifically targets helper T-lymphocytes. Which surface molecule acts as the primary receptor for viral attachment?
Answer: CD4 receptor
Explanation: HIV gp120 binds specifically to CD4 receptors on T-cells. CD8 is tempting but it is found on cytotoxic T-cells which HIV doesn't primarily infect.