label: high-affinity secondary active nitrite transmembrane transporter activity
label_lc: high-affinity secondary active nitrite transmembrane transporter activity
description: "Catalysis of the transfer of nitrite from one side of the membrane to the other, up the solute's concentration gradient. The transporter binds the solute and undergoes a series of conformational changes. Transport works equally well in either direction and is driven by a chemiosmotic source of energy. In high affinity transport the transporter is able to bind the solute even if it is only present at very low concentrations."