Fig. 1. Schematic lysosomal ion channels and transporters.
The ion movements belong to ion channel directions. Lysosomal ion channels characterized permeability; TRPMLs (few divalent cations, and nonselective cations: yellow), TMEM175, BK (potassium ion: blue), ClC-7 (chloride and hydrogen: green), V-ATPase (hydrogen: black), and TPCs (sodium, and calcium: purple). Compared to the cytosol, lysosomal lumen has high concentrations of Na+, Ca2+, and H+ but not K+. BK, calcium-activated large-conductance K+ channel; TPC, two-pore channel.
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