ANO1 and respiratory system disorder: Of relevance to the lung, TMEM16A loss‐of‐function studies have reported effects on goblet cell number and function9, 10, 11, 12, 13 as well as relaxation of airway smooth muscle10, 15, 16, 17 culminating in the recent proposal that inhibiting TMEM16A function would be of benefit in patients with respiratory diseases associated with mucus obstruction.18