RCOR2 and ependymoma: By evaluating Affymetrix gene expression array data4 across ependymoma groups, we found that RCOR2 expression is significantly upregulated in ZFTA relative to other ependymoma groups (p-value = 7.62e−27, Fig. 2d) and is highly correlated with ZFTA transcription (R = 0.66, p-value = 6.93−11, Fig. 2e).