Fig. 1
From: Orai/CRACM1 and KCa3.1 ion channels interact in the human lung mast cell plasma membrane
FcεRI-dependent HLMC KCa3.1 currents require the presence of external Ca2+. a Current–voltage curves from HLMCs activated via FcεRI in the presence external Ca2+ (2 mM). b Current–voltage curves from HLMCs activated via FcεRI in the absence of external Ca2+. Typical KCa3.1 currents appear in the presence of Ca2+ (2 mM) but not when it is absent. Small KCa3.1 currents appear in (b) when Ca2+ is then introduced. Data presented as mean ± SEM