Na+ dependent nucleoside transporter N-terminus
This family consists of nucleoside transport proteins. Swiss:Q62773 is a purine-specific Na+-nucleoside cotransporter localized to the bile canalicular membrane. Swiss:Q62674 is a 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