Glucose transporter 2 (GLUT2) also known as solute carrier family 2 (facilitated glucose transporter), member 2 (SLC2A2) is a transmembrane carrier protein that enables passive glucose movement across cell membranes. It is the principal transporter for transfer of glucose between liver and blood, and for renal glucose reabsorption. In humans, this protein is encoded by the SLC2A2 gene.
GLUT2 has high capacity but low affinity (high Km, ca. 5 mM) part of "the glucose sensor" in pancreatic β-cells. It is a very efficient carrier for glucose.
GLUT2 also carries glucosamine.
Storage: Store at -20 °C for one year. Avoid repeated freeze/thaw cycles.