Table 2.
Overview of the typical CRAC channel hallmarks of STIM1 mutants
Without STIM1 | STIM1 | STIM1 Δα2 | STIM1 F394A | STIM1 F394H | STIM1 F394D | |
---|---|---|---|---|---|---|
Vrev [mV] | ||||||
Orai1 | – | 59.22 ± 5.92 | 43.85 ± 4.35 | 57.00 ± 5.59 | 55.60 ± 7.45 | – |
Orai1 P245L | 33.4 ± 1.88 | 40.16 ± 5.3 | 46.52 ± 9.81 | 41.39 ± 5.69 | 40.05 ± 9.39 | 43.27 ± 1.98 |
Orai1 V102A | 32.58 ± 1.85 | 49.31 ± 3.31 | 31.63 ± 4.71 | 46.70 ± 10.98 | 58.10 ± 2.97 | 27.41 ± 4.83 |
FCDI | ||||||
Orai1 P245L | – | Yes | No | Yes | No | No |
IDVF:ICa2+ | ||||||
Orai1 P245L | 0.5 | 5.5 | 2.7 | 2.1 | 0.6 | 2.2 |
Table summarizes the Vrev, FCDI and the ratio IDVF:ICa2+ of Orai1 and Orai1 P245L currents in the absence of STIM1 and the presence of STIM1, STIM1 Δα2, STIM1 F394A, STIM1 F394H and STIM1 F394D. Moreover, the Vrev of Orai1 V102A currents in the absence of STIM1 and the presence of STIM1, STIM1 Δα2, STIM1 F394A, STIM1 F394H and STIM1 F394D are listed