Resting MG were identified based on high levels of expression of genes such as GLUL and RLBP1, activated MG were identified based of high levels of expression of genes such as TGFB2 and PMP2, and proliferating MGPCs were identified based on high levels of expression of CDK1 and TOP2A (Figure 1—figure supplement 1m–q). The gene discussed is GLUL; the disease is myasthenia gravis.