We know that p11 transports the 5-HT1B receptor from the cytoplasm to the membrane and increases density of this receptor on postsynaptic membrane and therefore upregulates serotonergic transmission, but is there any evidence in connection between p11 and other 5HT receptors (I know for 5HT7),? For example for 5 Ht1a which is targeted by the most AD and impaired in stress response? Note their genes, p11 and 5Ht1a, have different regulatory sequences - p11 has GREs and 5Ht1a nGREs!