| Modulator equi-response selectivity |
Equation (4): The ratio of modulator 1 concentration for receptor 1 in assay 1 over either modulator 2 concentration for receptor 1 in assay 1, or modulator 1 concentration for receptor 2 or in assay 2, yielding the same level of functional response by said agonist and modulator |
A = 10^X; for Fig. 2a (replace with B1 = 10^X; for Fig. 2b) |
| Kapp1 = (KA1 + A)*KB1 + (KA1 + aa1*A)*B1 |
| Eapp1 = (chi1*KA1 + tauA1*A)*KB1 + (tauB1*KA1 + aa1*bb1*tauA1*A)*B1 |
| P = (Kapp1/Eapp1)^(n1/n2) |
| Selectivity = B1*[P*RR*(tauB2*KA2 + aa2*bb2*tauA2*A)-(KA2 + aa2*A)]/{[KA2 + A-P*RR*(chi2*KA2 + tauA2*A)*KB2]} |
| Y = IF(Selectivity >0,Selectivity,0) |
| Agonist equi-response selectivity |
Equation (6): The ratio of agonist 1 concentration for receptor 1 in assay 1 over either agonist 2 concentration for receptor 1 in assay 1, or agonist 1 concentration for receptor 2 or in assay 2, yielding the same level of functional response by said agonist and modulator |
B = 10^X; for Fig. 2c (replace with A1 = 10^X; for Fig. 2d) |
| Kapp1 = (KA1 + A1)*KB1 + (KA1 + aa1*A1)*B |
| Eapp1 = (chi1*KA1 + tauA1*A1)*KB1 + (tauB1*KA1 + aa1*bb1*tauA1*A1)*B |
| P = (Kapp1/Eapp1)^(n1/n2) |
| Selectivity = A1*[P*RR*(KB2*tauA2 + aa2*bb2*tauA2*B)-(KB2 + aa2*B)]/[KA2*(KB2 + B)-P*RR*KA2*(chi2*KB2 + tauB2*B)] |
| Y = IF(Selectivity >0,Selectivity,0) |
| Modulator equi-occupancy selectivity |
Equation (13): The ratio of modulator 1 concentration for receptor 1 in assay 1 over either modulator 2 concentration for receptor 1 in assay 1, or modulator 1 concentration for receptor 2 or in assay 2, yielding the same level of receptor occupancy by said agonist |
B1 = 10^X; for Fig. 4a
|
| P1 = (1 + tauA1)/KA1 + aa1*B1*(1 + bb1*tauA1)/KA1/KB1 |
| P2 = 1 + chi1 + B1/KB1*(1 + tauB1) |
| Selectivity = B1*[P2*aa2/KA2*(1 + bb2*tauA2*RR)-P1*(1 + tauB2*RR)]/KB2/[P1*(1 + chi2*RR)-P2*(1 + tauA2*RR)/KA2] |
| Y = IF(Selectivity >0,Selectivity,0) |
| Agonist equi-occupancy selectivity |
Equation (15): The ratio of agonist 1 concentration for receptor 1 in assay 1 over either agonist 2 concentration for receptor 1 in assay 1, or agonist 1 concentration for receptor 2 or in assay 2, yielding the same level of receptor occupancy by said agonist |
B = 10^X; for Fig. 4b
|
| Top = (1 + chi1 + B/KB1*(1 + tauB1))*(1 + tauA2*RR + aa2*B/KB2*(1 + bb2*tauA2*RR)) |
| Bottom = KA2/KA1*(1 + tauA1 + aa1*B/KB1*(1 + bb1*tauA1))*(1 + chi2*RR + B/KB2*(1 + tauB2*RR)) |
| Selectivity = Top/Bottom |
| Y = IF(Selectivity >0,Selectivity,0) |
