Na+ dependent nucleoside transporter N-terminus
This family consists of nucleoside transport proteins, e.g.a purine-specific Na+-nucleoside cotransporter localised to the bile canalicular membrane and a Na+-dependent nucleoside transporter selective for pyrimidine nucleosides and adenosine it also transports the anti-viral nucleoside analogues AZT and ddC. This alignment covers the N terminus of this family