Detailed examination indicated that the highest expressions of TRAF1, TRAF2, TRAF3, TRAF5, and TRAF7 were in Cholangiocarcinoma (CHOL), while TRAF4 was most expressed in Uterine Corpus Endometrial Carcinoma (UCEC) and TRAF6 in Glioblastoma multiforme (GBM) (Fig. 1B). Here, TRAF2 is linked to cholangiocarcinoma.