GLUT4
Glucose is a source of energy for the human body. Skeletel Muscle cells and adipose tissue cells plays a key role in the maintenence of glucose homeostasis by it's ability to uptake and store glucose as a molecule called glycogen which is the storage molecule for glucose. It does this by very specific transporter proteins called GLUT4 glucose transporters which is 1 of the 13 sugar transporter proteins. GLUT4 glucos transporters are expressed via stimulation from Insulin and when unstimulated are removed from the surface and into the plasma membrane of the skeletel muscle cells or adipose tissue cells. The GLUT4 glucose transporters are again expressed when the bodys blood sugar increases which stimulates the pancrease beta cells to release insulin and the insuline then stimulates the skeletel musscle cells to express GLUT4 recepters to transport glucose and store it as gylcogen to bring blood/sugar levels down and maintain glucose homeostasis.