PLAUR, JAK3, PTTG1 and ENTPD1 have been reported to be associated with ccRCC, whereas to the best of our knowledge, no study has reported the association of PPP1R18 and TMEM44 with ccRCC.36, 37, 38, 39, 40, 41, 42, 43, 44. Here, PTTG1 is linked to nonpapillary renal cell carcinoma.