SULF2 and central nervous system cancer: It was found that CAPG, CLIC1, GLB1, GNG12, KIF20A, PDIA4, SULF2, TAGLN2, and WEE1 were not detected in the normal tissues; while were expressed in the glioma tissues (low or medium expression) except for GNG12 and TAGLN2 (Supplementary Fig. 2).