PRSS1 (Protease, Serine 1): PRSS1 is a gene that encodes trypsin, a digestive enzyme produced in the pancreas. Trypsin plays a key role in digestion by breaking down proteins. Mutations in PRSS1 can cause hereditary pancreatitis, a condition marked by repeated episodes of pancreatic inflammation. Understanding PRSS1 is important for insights into pancreatic function and managing pancreatic disorders.