GTPBP4 and neoplasm: Supplementary Figure S2 showed the correlation analysis between GTPBP4 and tumor mutation load (TMB). It can be shown that the TMB level of the GTPBP4 high expression group was similarly high, and the TMB and GTPBP4 expression levels had a positive correlation. Supplementary Figure 3 depicted the relationship between GTPBP4 and the ESTIMATE score, Immune score, Stromal score, and tumor purity, highlighting GTPBP4’s function in the immune milieu.