Sugar/inositol transporter <p>The sugar transporters belong to a superfamily of membrane proteins responsible for the binding and transport of various carbohydrates, organic alcohols, and acids in a wide range of prokaryotic and eukaryotic organisms [<cite idref="PUB00005096"/>]. These integral membrane proteins are predicted to comprise twelve membrane spanning domains. It is likely that the transporters have evolved from an ancient protein present in living organisms before the divergence into prokaryotes and eukaryotes [<cite idref="PUB00003999"/>]. In mammals, these proteins are expressed in a number of organs [<cite idref="PUB00002464"/>].</p><p>This family includes just the sugar transporters and the myo-inositol tranpsorters. </p>