Ovo-like transcriptional repressor 1 (OVOL1)

Ovo-like transcriptional repressor 1 (OVOL1) is a conserved zinc finger transcription factor that modulates epithelial and germ cell differentiation by repressing genes that maintain progenitor states. It is essential for transitions from proliferation to terminal differentiation in epithelial tissues, including hair follicles, kidney, and placenta. OVOL1 acts through dual mechanisms: it competes with transcriptional activators for promoter binding and actively recruits histone deacetylases via its SNAG domain, resulting in chromatin condensation and gene silencing[1][3][4]. In cancer, OVOL1 suppresses epithelial–mesenchymal transition, inhibits cell migration, and stabilizes SMAD7, making it a prognostic marker and potential therapeutic target in epithelial-derived tumors such as breast cancer[5].

Other names

OVO-like 1OVOL1zinc finger protein OVOL1putative transcription factor Ovo-like 1

Transcriptional repression by DNA binding to gene promoters; Competes with transcriptional activators such as c-Myb for DNA binding; Recruits histone deacetylases (HDAC1, HDAC2, HDAC3) via SNAG domain for chromatin remodeling and gene silencing; Stabilizes SMAD7 to suppress TGF-β receptor signaling, thereby inhibiting epithelial–mesenchymal transition in cancer