One gene identified for rheumatoid arthritis is C-C Motif Chemokine Receptor 1 (CCR1) (p-value = \documentclass[12pt]{minimal}\usepackage{amsmath}\usepackage{wasysym}\usepackage{amsfonts}\usepackage{amssymb}\usepackage{amsbsy}\usepackage{mathrsfs}\usepackage{upgreek}\setlength{\oddsidemargin}{-69pt}\begin{document}$$1.42\times {10}^{-11},{PIP}=1$$\end{document}1.42×10−11,PIP=1) in unstimulated NK cells. The gene discussed is CCR1; the disease is rheumatoid arthritis.