With the goal to get a better insight into ZBTB18 transcriptional repressive mechanisms, we used mass spectrometry (MS) to identify ZBTB18 co-precipitated proteins in glioblastoma cells (SNB19), upon FLAG-ZBTB18 overexpression and subsequent anti-FLAG co-immunoprecipitation (Fig S1A). This evidence concerns the gene ZBTB18 and glioblastoma.