Two proteins including glial fibrillary acidic protein (P14136, GFAP) and zeta chain of T‐cell receptor‐associated protein kinase 70 (P43403, ZAP70) exhibited high AUC values (Fig. 6A) to differentiate eDLBCL and PCNSL subtypes of DLBCL. The gene discussed is ZAP70; the disease is diffuse large B-cell lymphoma.