Table 2.

Correlation amplitude ratios

	$\tilde{G}{\left(0\right)}_{\mathrm{R}}/\tilde{G}{\left(0\right)}_{\mathrm{G}}$		$\tilde{G}{\left(0\right)}_{\text{RG}}/\tilde{G}{\left(0\right)}_{\mathrm{G}}$
	Experiment	Theory	Experiment	Theory
G-RARLBD-Ch	1.12 ± 0.06	1.21	0.91 ± 0.05	0.90
G-Ch	1.12 ± 0.08	1.11	0.85 ± 0.04	0.81
Ch-G	1.05 ± 0.1	1.03	0.78 ± 0.06	0.78
Ch-G-Ch	0.85 ± 0.05	0.90	0.69 ± 0.06	0.73

Auto- and cross-correlation functions of hetero-oligomer involving mCherry do not overlap, because mCherry exists in two states. The correlation amplitudes G(0) are normalized with respect to the green channel G(0). The experimental values and uncertainties are obtained by averaging over measurement of 10 cells. The two-state model predicts the correlation amplitude according to Eqs. 8–10, and the results show excellent agreement with the experimental values.