PRDM8 is a transcription factor that plays critical roles in neural development, hematopoietic differentiation, and glycogen metabolism regulation. In retinal development, PRDM8 is required for rod bipolar and type 2 OFF-cone bipolar cell survival, with knockout mice displaying electroretinogram deficits resembling congenital stationary night blindness 1. The protein also regulates amacrine cell subtype identity and is essential for proper differentiation of hematopoietic and neuronal cells from induced pluripotent stem cells 2. PRDM8 interacts with laforin and malin proteins, causing their nuclear translocation and regulating cytoplasmic quantities of these glycogen metabolism enzymes 3. Disease-wise, mutations in PRDM8 cause early-onset Lafora body disease, a progressive myoclonus epilepsy with onset around age 5, characterized by dysarthria, myoclonus, and ataxia 3. Additionally, PRDM8 functions as a tumor suppressor in hepatocellular carcinoma, inhibiting cell proliferation and PI3K/AKT/mTOR signaling through NAP1L1 regulation 4. Aberrant DNA methylation in PRDM8 serves as a biomarker for bone marrow failure syndromes including dyskeratosis congenita and aplastic anemia 5, and is associated with premature aging phenotypes 2.