Have you ever played with Legos? Gold linker is kind of like a Lego block that helps connect other Legos together to make a bigger creation. But instead of Legos, gold linker connects different proteins together in our body to make them work properly. Proteins are like tiny machines in our body that help us do all sorts of things like digest food, build muscle, and fight off germs. Gold linker is very good at sticking to different proteins and helping them work together. Just like how Legos come in different shapes and sizes, gold linker can be made to connect different types of proteins together depending on what our body needs. Pretty cool, right?