// Created by libAntimony v2.8.0
model *Zatorsky2006_p53_Model4()

  // Compartments and Species:
  compartment compartment_;
  species x in compartment_, y in compartment_, y0 in compartment_;

  // Reactions:
  R1:  => x; compartment_*beta_x*psi;
  R2: x => ; compartment_*alpha_x*x;
  R3: x => ; (compartment_*alpha_k*y*x)/(x + k);
  R4:  => y0; compartment_*beta_y*x*psi;
  R5: y0 => y; compartment_*alpha_0*y0;
  R6: y -> ; compartment_*alpha_y*y;

  // Species initializations:
  x = 0;
  y = 0.8;
  y0 = 0.1;

  // Compartment initializations:
  compartment_ = 1;

  // Variable initializations:
  beta_x = 0.9;
  psi = 1;
  alpha_x = 0;
  beta_y = 1.1;
  alpha_y = 0.8;
  alpha_0 = 0.8;
  k = 0.0001;
  alpha_k = 1.7;

  // Other declarations:
  const compartment_, beta_x, psi, alpha_x, beta_y, alpha_y, alpha_0, k, alpha_k;

  // Unit definitions:
  unit substance = item;
  unit time_unit = 3600 second;

  // Display Names:
  substance is "dimensionless";
  time_unit is "hours";
  compartment_ is "cell";
  x is "p53";
  y is "Mdm2";
  y0 is "precursor Mdm2";
  R1 is "p53 production";
  R2 is "Mdm2 independent p53 degradation";
  R3 is "Mdm2 dependent p53 degradation";
  R4 is "p53 dependent Mdm2 precursor production";
  R5 is "Mdm2 synthesis from precursor";
  R6 is "Mdm2 degradation";
end