- The intracellular domain of the second chain of the interferon-gamma receptor is interchangeable between species. Muthukumaran, G., Donnelly, R.J., Ebensperger, C., Mariano, T.M., Garotta, G., Dembic, Z., Poast, J., Baron, S., Pestka, S. J. Interferon Cytokine Res. (1996)