Ion occupancy of the selectivity filter controls opening of a cytoplasmic gate in the K2P channel TALK-2
Lea C. Neelsen, Elena B. Riel, Susanne Rinné…·Marcus Schewe
This paper identifies a lower cytoplasmic gate in TALK-2 channels and demonstrates bidirectional coupling between this gate and the selectivity filter gate, showing that ion occupancy and stimuli can influence both gates.