More specifically, PHGDH, PSAT1, FTCD, SHMT2, MTHFD2L, MTHFD2, MTHFD1L, MTHFD1, GCAT, SARDH, BHMT, CHDH, TYMS, GART, ATIC, ALDH1L2, DHFR, and MTFMT showed elevated expression in tumor tissues. The gene discussed is ATIC; the disease is neoplasm.