Table 3.

Comparison with other neurons

Model	β/α (μM)	Time to leave fully-bound state (μs)	Off-rate of first Ca2+ to unbind (s−1)	Time for last Ca2+ to leave (ms)
Five-site A	1.15	1213	145	6.8
Five-site A∗	3.17	143	146	6.8
Five-site A∗†	2.61	165	141	7.1
Three-site A	4.69	150	73	13.7
Three-site A∗	4.5	325	148	6.6
Three-site C‡	2.32	319	54	18.5
Two-site C‡	1.98	273	14	71.4
Bipolar cell (3)	214	285	128	0.5
Hair cell (6)	77	508	55	0.465
Calyx five-site C (5)	105	103	37	0.105
Calyx five-site A (7)	40	138	250	0.25
Calyx dual sensor, fast (8)	38	164	23	0.172
Calyx dual sensor, slow (8)	44	160	130	7.69
Chromaffin cell three-site C (31)	≈10	700–2000	≈130	7.69

A, allosteric model; C, denotes conventional model.

^∗With weighted high point.

^†With spontaneous point at 50 nM Ca²⁺.

^‡No weighted high point, no spontaneous point.