Chemical reaction	Reaction rate	Reaction propensity
I → A	$r_{on}+r_{add}\cdot \frac{{{\mathrm{mRNA}}_X}^{\mathrm{n}}}{k^n+{{\mathrm{mRNA}}_X}^{\mathrm{n}}}$	$r_{on}+r_{add}\cdot \frac{{{\mathrm{mRNA}}_X}^{\mathrm{n}}}{k^n+{{\mathrm{mRNA}}_X}^{\mathrm{n}}}\cdot \mathrm{I}$
A → I	roff	roff · A
I → I + mRNA	rprod	rprod · I
A → A + mRNA	d · rprod	d · rprod · A
mRNA → ∅	rdeg	rdeg · mRNA