Glucose Transporter (GLUT4)

GLUT4 is a type of protein found in muscle and fat cells that helps regulate blood sugar levels. It acts like a gate that transports glucose (sugar) from the bloodstream into cells, where it’s used for energy or stored for later. When you eat and your blood sugar rises, insulin signals GLUT4 to move to the cell surface, increasing glucose uptake. This process helps keep blood sugar levels balanced. Proper functioning of GLUT4 is essential for energy management and metabolic health, and its impairment is linked to insulin resistance and type 2 diabetes.