Table 1 Results of fitting Black & Leff equations to the model of non-competitive auto-inhibition. Black & Leff (Eq. (7)) and Hill (Eq. (10)) equations were fitted to model data Eq. (15) with EMAX fixed to 1 or E’MAX confined <  = 1, respectively.

From: A critical re-evaluation of the slope factor of the operational model of agonism: When to exponentiate operational efficacy

Model Eqs. 15 and 17

 

Black & Leff

Hill

Equation 18

τ

pKA

KI

τ’

n

τ

τn

pKA

E’MAX

nH

pEC50

E’MAX

τ

pKA

pKA

0.2

6.00

1

0.091

1.33

0.166

0.0917

5.91

0.084

1.21

5.78

0.083

0.090

5.74

5.99

0.5

6.00

1

0.200

1.46

0.333

0.201

5.98

0.167

1.22

5.84

0.165

0.199

5.76

5.99

1

6.00

1

0.333

1.58

0.499

0.333

6.06

0.250

1.22

5.91

0.248

0.330

5.79

5.99

2

6.00

1

0.500

1.71

0.666

0.499

6.15

0.333

1.21

5.99

0.331

0.494

5.82

6.00

5

6.00

1

0.714

1.55

0.804

0.713

6.15

0.416

1.18

6.10

0.414

0.706

5.87

6.00