MIX23 and leiomyosarcoma: In SARC, the groups in which CCDC58 expression was associated with poor prognosis included: female (Fig. S5B), white (Fig. S5C), leiomyosarcoma (Fig. S5D), non-multifocal tumor (Fig. S5E), R0 residual tumor (Fig. S5F), and not receiving radiotherapy (Fig. S5G).