A, example responses from outside‐out patches expressing GluA2 (left), rat ASIC1a (middle) or ASIC1a/2a (right) to a 5 s agonist exposure. B, summary of weighted time constants of desensitization from each construct. C, example responses from GluA2 (left), rat ASIC1a (middle) or ASIC1a/2a (right) to a 1 ms (black traces) or 5 s agonist application (grey traces). Same patches and agonist concentrations as (A). Solution exchange current from each patch for 1 ms (black traces) or 5 s (grey traces) jumps are shown above. D, summary of deactivation time constants for each construct tested.