Glucose transporter type 4 (GLUT4)

GLUT4 is a protein responsible for transporting glucose, a key energy source, into body cells, especially muscle and fat cells. It acts like a gatekeeper, moving to the cell surface when insulin signals the need for energy uptake after eating. Once on the surface, GLUT4 allows glucose to enter cells, where it’s used for energy or stored for later use. This process helps maintain healthy blood sugar levels and provides fuel for physical activity and overall body function. Proper functioning of GLUT4 is crucial for metabolic health and is involved in conditions like diabetes when it malfunctions.