Table 2 EC₅₀ values for the 3-ketosteroid transcriptional activation of GAL4-DBD-MR-LBD of vertebrate MRs.

The percentage relative induction is compared to the maximal response to ALDO.

MR	ALDO	Corticosterone	Cortisol	11-Deoxycorticosterone	11-Deoxycortisol
MR	EC₅₀ (M)	EC₅₀ (M)	EC₅₀ (M)	EC₅₀ (M)	EC₅₀ (M)
Human	2.8 × 10⁻¹⁰	5.9 × 10⁻¹⁰	3.2 × 10⁻⁹	1.8 × 10⁻⁹	—
Human	100%	95%	74%	44%	8%
Chicken	1.3 × 10⁻¹⁰	1.6 × 10⁻¹⁰	6.9 × 10⁻¹⁰	1.7 × 10⁻¹⁰	4.7 × 10⁻⁹
Chicken	100%	92%	75%	92%	36%
Alligator	3.5 × 10⁻¹⁰	3.8 × 10⁻¹⁰	2.3 × 10⁻⁹	5.2 × 10⁻¹⁰	—
Alligator	100%	88%	68%	51%	8%
Xenopus	1.5 × 10⁻⁹	1.9 × 10⁻⁹	1.2 × 10⁻⁸	—	—
Xenopus	100%	74%	37%	10%	6%
Zebrafish	2.7 × 10⁻¹¹	1.5 × 10⁻¹⁰	3.1 × 10⁻¹⁰	1.0 × 10⁻¹⁰	9.1 × 10⁻¹⁰
Zebrafish	100%	96%	77%	99%	67%