Figure 1From: Evolutionary ancestry and novel functions of the mammalian glucose transporter (GLUT) familyPredicted sugar transporter membrane topologies. Shown are the predicted topologies of the class I, II and III GLUT proteins [15], as well as the A. thaliana H+-myo-inositol transporter, AtINT4 [16]. Sites of N-linked glycosylation are indicated (Y).Back to article page