Through a bioinformatics analysis and The Cancer Genome Atlas (TCGA) data acquired from the Human Protein Atlas (https://www.proteinatlas.org/ENSG00000204371-EHMT2/pathology/renal+cancer#ihc) website, it could be found that high expression of G9a was associated with poor prognosis of renal cancer (Figure 1(d)). This evidence concerns the gene EHMT2 and renal carcinoma.