Both Neto1 and Neto2 increase glutamate sensitivity of GluK1 receptors.
Neto1 slows onset of desensitization of GluK1 receptors in response to sub-maximal but not saturating glutamate levels.
Neto2 slows onset of desensitization of GluK1 and GluK2 receptors at all levels of activation.
The differing effects of Neto1 and Neto2 at GluK1 receptors are associated with their extracellular CUB domains.