NRT1.1 (nitrate transporter 1.1) is a dual-affinity nitrate transporter which acts also as a nitrate sensor. High-affinity nitrate transporter when phosphorylated and low-affinity transported when dephosphorylated. Low nitrogen concentration stimulates phosphorylation. Expressed in lateral roots. Alternative names: AtNRT1, Nitrate/chlorate transporter, protein CHLORINA 1, AtNPF6.3.
