\Gamma <
\Delta G \; \text{more negative}
\Delta G \; \text{more positive}
\Gamma >> k, \; \frac{\Gamma}{k}>>1
\Delta G=0
R=\frac{8\eta l}{\pi r^4}
\text{response}=\frac{\text{max}\sdot[X_a]^n}{[X_a]^n+[EC_{50}]^n}