Uniporters and anion antiporters

Abstract

The past year has seen a flurry of activity in the area of protein-mediated hexose uniport. Topics of interest covered here include: structure-function studies; the interaction of glucose carriers with glycolytic enzymes; regulation of cell surface glucose-carrier concentrations by insulin and the signalling mechanisms involved; and the role of the glucose-carrier isoform, GLUT2, in pancreatic beta-cell glucose-dependent insulin secretion. Nucleoside uniport and Glu-Asp antiport are also discussed briefly.