RNase L is important in immune defense, as it degrades all RNA within the cell upon viral infection and releases antiviral IFN\documentclass[12pt]{minimal}\usepackage{amsmath}\usepackage{wasysym}\usepackage{amsfonts}\usepackage{amssymb}\usepackage{amsbsy}\usepackage{mathrsfs}\usepackage{upgreek}\setlength{\oddsidemargin}{-69pt}\begin{document}$$\gamma $$\end{document}γ33. The gene discussed is IFNA1; the disease is viral infectious disease.