From: Single fluorescent protein-based Ca2+sensors with increased dynamic range
Sensor | (F/F0)max | Excitation/emission wavelengths, nm | Quantum yield | Extinction coefficient, M-1cm-1 | Relative brightness a | pH stability (pKa) | Kd for Ca2+, μM |
---|---|---|---|---|---|---|---|
Flash -pericam | 8.0 | 494/514 | 0.20 | 16,900 | 0.10 | 7.9 | 0.7 |
GCaMP1 | 4.3 | 488/510 | 0.05 | 1,400 | 0.002 | 7.1 | 0.24 |
GCaMP1.6 | 4.9 | 488/509 | 0.79 | 3,800 | 0.09 | 8.2 | 0.16 |
GCaMP2 | 5.0 | 487/508 | 0.93 | 19,000 | 0.53 | Nd | 0.16 |
Case12 | 12.0 | 491/516 | 0.24 | 48,000 | 0.35 | 7.2 | 1.0 |
Case16 | 16.5 | 490/516 | 0.17 | 50,000 | 0.28 | 7.2 | 1.0 |