DMRTA2 (DMRT5) is a transcription factor that plays critical roles in neural development and sexual differentiation. In cortical development, DMRTA2 acts as a transcriptional repressor that maintains cortical identity in dorsal telencephalic progenitors by suppressing Pax6 expression and cooperating with it in cortical patterning 1. The protein binds DNA in a sequence-specific manner and interacts with the NuRD repressor complex to regulate gene expression 1. DMRTA2 is essential for maintaining radial glial cells and neural progenitor populations during brain development 2. In reproductive biology, DMRTA2 is required for proper female germ cell development, specifically for oogonia differentiation prior to meiotic entry 3. Disease relevance includes severe cortical malformations, as loss-of-function mutations cause pachygyria, corpus callosum agenesis, and microcephaly 4. DMRTA2 is also highly expressed in glioblastoma, where it supports glioma stem cell maintenance and tumor neovascularization 5, and in pediatric high-grade gliomas, where it regulates tumor cell stemness 2. Clinically, DMRTA2 methylation serves as a biomarker for bladder cancer detection with high sensitivity and specificity 6, and is part of prognostic signatures in head and neck cancer 7.