Novel silent variant (c1722G>A) in the coding region of the insulin receptor substrate 1 (IRS1) gene Communicated by: Mark H. Paalman Online Citation: Human Mutation, Mutation and Polymorphism Report #186 (2000) Online http://journals.wiley.com/1059-7794/pdf/mutation/mpr186.pdf Acknowledgments: This study was supported by the START research programme of the Technical University of Aachen.