Analysis in TIMER2.0 revealed that NRP1 was significantly differentially expressed across the six immune subtypes in LGG (p = 2.19e-18), BRCA (p = 3.62e-11), KIRC (p = 1.81e-09), pheochromocytoma/paraganglioma (PCPG) (p = 1.53e-06), LUSC (p = 2.36e-06), COAD (p = 9.13e-06), and STAD (p = 1.57e-05) (Figure 6A). The gene discussed is NRP1; the disease is hereditary pheochromocytoma-paraganglioma.