OVOL1 and hereditary leiomyomatosis and renal cell cancer: The HLRCC tumors had significant methylation-associated mRNA downregulation of OVOL1, although OVOL2 had no methylation or downregulation, and this correlated with the expected increased expression of MYC and the markers of EMT including ZEB1, a transcriptional target of OVOL1 (Fig 3).