high affinity inorganic phosphate:sodium symporter activity, sodium/phosphate cotransporter activity
Alternate IDs
None
Definition
Enables the transfer of a solute or solutes from one side of a membrane to the other according to the reaction: HPO42-(out) + Na+(out) = HPO42-(in) + Na+(in). In high-affinity transport the transporter is able to bind the solute even if it is only present at very low concentrations.
Source:TC:2.A.20.2.2