\frac{dx_{1}}{dt} = \left(-1 \cdot k_{2} \cdot x_{1}^{2} / \left(x_{1}^{2} + k_{6}^{2}\right) + 1 \cdot \left(1 - k_{17}\right) \cdot \left(k_{7} + \left(1 - x_{3}\right) \cdot k_{1} \cdot x_{2}^{2} / \left(x_{2}^{2} + k_{9}^{2}\right) \cdot x_{1}^{2} / \left(x_{1}^{2} + k_{13}^{2}\right)\right) \cdot x_{5} + 1 \cdot k_{12} \cdot \left(k_{10} + k_{11}^{8} / \left(x_{5}^{8} + k_{11}^{8}\right)\right) + -1 \cdot k_{15} \cdot x_{1}^{2} / \left(x_{1}^{2} + k_{14}^{2}\right) + -1 \cdot k_{19} \cdot x_{1}^{4} / \left(x_{1}^{4} + k_{20}^{4}\right) + 1 \cdot k_{18} \cdot x_{6} / \left(x_{6} + \frac{1}{100}\right)\right) / k_{21}\\ \frac{dx_{2}}{dt} = \left(1 \cdot k_{8} \cdot x_{1} + -1 \cdot k_{3} \cdot x_{2}\right) / k_{21}\\ \frac{dx_{3}}{dt} = \left(1 \cdot k_{4} \cdot x_{1}^{4} / \left(x_{1}^{4} + k_{16}^{4}\right) \cdot \left(1 - x_{3}\right) + -1 \cdot k_{5} \cdot x_{3}\right) / k_{21}\\ \frac{dx_{4}}{dt} = 0 / k_{22}\\ \frac{dx_{5}}{dt} = \left(1 \cdot k_{2} \cdot x_{1}^{2} / \left(x_{1}^{2} + k_{6}^{2}\right) + -1 \cdot \left(1 - k_{17}\right) \cdot \left(k_{7} + \left(1 - x_{3}\right) \cdot k_{1} \cdot x_{2}^{2} / \left(x_{2}^{2} + k_{9}^{2}\right) \cdot x_{1}^{2} / \left(x_{1}^{2} + k_{13}^{2}\right)\right) \cdot x_{5} + -1 \cdot k_{17} \cdot \left(k_{7} + \left(1 - x_{3}\right) \cdot k_{1} \cdot x_{2}^{2} / \left(x_{2}^{2} + k_{9}^{2}\right) \cdot x_{1}^{2} / \left(x_{1}^{2} + k_{13}^{2}\right)\right) \cdot x_{5}\right) / k_{23}\\ \frac{dx_{6}}{dt} = \left(1 \cdot k_{19} \cdot x_{1}^{4} / \left(x_{1}^{4} + k_{20}^{4}\right) + -1 \cdot k_{18} \cdot x_{6} / \left(x_{6} + \frac{1}{100}\right) + 1 \cdot k_{17} \cdot \left(k_{7} + \left(1 - x_{3}\right) \cdot k_{1} \cdot x_{2}^{2} / \left(x_{2}^{2} + k_{9}^{2}\right) \cdot x_{1}^{2} / \left(x_{1}^{2} + k_{13}^{2}\right)\right) \cdot x_{5}\right) / k_{24}