Table 2. Parameters for simulations of Ca2+ release from DMN cage.
Parameters | Values | References number / Notes | |
---|---|---|---|
Resting Ca2+ | [Ca2+]rest | 227*10−9 M | Measured |
Total magnesium | [Mg2+]T | 0.5*10−3 M | Pipette concentration |
Fluo-5F | [Fluo] | 0 or 50 *10−6 M (see Table 1) | Pipette concentration |
K D | 0.83 *10−6 M | Delvendahl et al., 2015 | |
k off | 249 s-1 | ibid | |
k on | 3*108 M−1s−1 | Yasuda et al., 2004 | |
OGB-5N | [OGB] | 0 or 200*10−6 M (see Table 1) | Pipette concentration |
K D | 31.4*10−6 M | Measured (Figure 3—figure supplement 1A) | |
koff | 6000 s−1 | ibid. | |
kon | 2.5*108 M−1s−1 | DiGregorio and Vergara, 1997 | |
ATP | [ATP] | 5 *10−3 M | Pipette concentration |
Ca2+ binding | K D | 2*10−4 M | Meinrenken et al., 2002 |
k off | 100 000 s−1 | ibid. | |
k on | 5*108 M−1s−1 | ibid. | |
Mg2+ binding | K D | 100*10−6 M | Bollmann et al., 2000; MaxC |
k off | 1000 s−1 | ibid. | |
k on | 1*107 M−1s−1 | ibid. | |
Endogenous buffer | [EB] | 480 *10−6 M | Delvendahl et al., 2015 |
K D | 32*10−6 M | ibid | |
k off | 16 000 s−1 | ibid. | |
k on | 5*108 M−1s−1 | ibid. | |
Total DM nitrophen | [DMn]T | 500*10−6 – 10*10−3 M (see Table 1) | Pipette concentration |
Ca2+ binding | K D | 6.5*10−9 M | Faas et al., 2005 |
k off | 0.19 s−1 | ibid. | |
k on | 2.9*107 M−1s−1 | ibid. | |
Mg2+ binding | K D | 1.5*10−6 M | ibid. |
k off | 0.2 s−1 | ibid. | |
Uncaging fraction | α | See Table 1 | |
Fast uncaging fraction | af | 0.67 | Faas et al., 2005 |
Photoproduct 1 | [PP1] | ||
Ca2+ binding | K D | 2.38*10−3 M | Faas et al., 2005 |
k off | 69 000 s−1 | ibid. | |
k on | 2.9*107 M−1s−1 | ibid. | |
Mg2+ binding | K D | 1.5*10−6 M | ibid. |
k off | 300 s−1 | ibid. | |
k on | 1.3*105 M−1s−1 | ibid. | |
Photoproduct 2 | [PP2] | ||
Ca2+ binding | K D | 124.1*10−6 M | Ibid. |
k off | 3600 s−1 | ibid. | |
k on | 2.9*107 M−1s−1 | ibid. | |
Mg2+ binding | K D | 1.5*10−6 M | ibid. |
k off | 300 s−1 | ibid. | |
k on | 1.3*105 M−1s−1 | ibid. |