Compared with normal tissues, CRC tissues expressed significantly lower levels of BCL2 (ENSG00000171791), PPM1L (ENSG00000163590), ARHGAP44 (ENSG00000006740), and PRKACB (ENSG00000142875) (P < 0.001) (Figure 5(a)–5(d)). The gene discussed is BCL2; the disease is colorectal carcinoma.