Antibody Fv Interface Hydration and Germline Pairing

Antibodies are key defenders of our immune system and among the most successful drugs in modern medicine. Each antibody consists of two heavy and two light protein chains that together determine how it recognizes pathogens. Which heavy and light chains pair up has a strong impact on the antibodys stability, effectiveness, and safety. Until recently, scientists believed that this pairing happens randomly but new data suggest that certain combinations are favored. This project explores why some chain pairs fit together better than others. Special attention is given to water molecules located at the interface between both chains. These tiny molecules act like glue or lubricants, influencing how tightly the chains bind. Using advanced computer simulations, we analyze how water behaves at this interface how it moves, interacts, and contributes to stability. The insights gained will help identify which natural gene combinations create particularly stable or flexible antibodies. This knowledge will accelerate the rational design of therapeutic antibodies and improve their safety and efficiency in treating diseases such as cancer, autoimmune disorders, and infections.