text: import pandas as pd
  from scipy.integrate import odeint
  def params():
      def __init__(self):
          self.dtt = 0.154
          self.b = 0.01
          self.dr = 1.6
          self.ex = 2.6
          self.dp = 0.39
          self.v = 150
          self.k = 50
          self.vp = 11
          self.kp = 0.676
  
  def deriv()
  
    d/dt (tat) = -dtt * tat
    d/dt (nRNA) = (b + v * tat) / (k + tat) - ex * nRNA - dr * nRNA
    d/dt (cRNA) = ex * nRNA - dr * cRNA
    d/dt (P) = vp * cRNA / (kp + cRNA) - dp * P
    RNA = nRNA + cRNA
  