TSC2, or Tuberous Sclerosis Complex 2, is a gene that plays a crucial role in regulating cell growth and division. Mutations in the TSC2 gene can lead to the development of tuberous sclerosis, a genetic disorder characterized by the growth of benign tumors in various organs, including the brain, kidneys, and skin. The TSC2 gene works alongside another gene, TSC1, to form a protein complex that helps control the mTOR signaling pathway, which is essential for cellular functions. Disruptions in this pathway can result in the symptoms associated with tuberous sclerosis, such as seizures, developmental delays, and skin abnormalities.