OAT (Ornithine Aminotransferase): OAT encodes the ornithine aminotransferase enzyme, which is involved in the urea cycle. This enzyme catalyzes the conversion of ornithine to citrulline, playing a key role in the detoxification of ammonia in the body. Mutations in OAT can lead to hyperammonemia, a condition characterized by elevated ammonia levels in the blood, which can have neurological consequences....