A glucose transporter is a type of protein that helps move glucose, a simple sugar, into cells. Glucose is essential for energy production, and these transporters ensure that cells receive the glucose they need from the bloodstream. There are several types of glucose transporters, each with specific roles and locations in the body. One well-known glucose transporter is GLUT4, which is primarily found in muscle and fat tissues. Insulin, a hormone produced by the pancreas, stimulates the movement of GLUT4 to the cell surface, enhancing glucose uptake after meals. This process is crucial for maintaining normal blood sugar levels.