Glucose transporter (GLUT4) is a glucose carrier located on the cell membrane, and glucose enters red blood cells through auxiliary diffusion, which has been recognized by most teachers and is not controversial. The entry of glucose into red blood cells and most other tissues and cells depends on a glucose transporter called GLUT, especially GLUT2, which drives the transport of glucose along the concentration gradient.
Extended data:
Membrane proteins involved in intracellular glucose transport mainly include glucose transporter GLUT and sodium-dependent glucose transporter SGLT. GLUT is widely distributed in all biological tissues and catalyzes the diffusion of glucose molecules along the concentration gradient (auxiliary diffusion). SGLT is mainly expressed in intestinal and renal cortical cells, which drives the reverse concentration gradient transport (active transport) of glucose on the membrane by consuming the energy accumulated by Na+ concentration gradient.
* * * 14 kinds of surplus, which can be divided into three categories. SGLT*** discovered six species. It should be noted that the distribution, structure and physiological functions of different GLUT and SGLT are different.
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