PTER (Phosphotriesterase-related protein): PTER is a protein that plays a crucial role in cellular detoxification and regulating metabolism. As part of the phosphotriesterase-related protein family, PTER helps break down chemical compounds, including organophosphate pesticides and nerve agents. Its enzymatic function protects cells from chemical damage and is also involved in cellular signaling and metabolic processes. Dysregulation of PTER expression or activity can increase vulnerability to chemical toxicity and metabolic imbalances.