Specificity of Longevity Gene (IMAGE) Tata Institute of Fundamental Research Caption Two alternate forms of SIRT1 leads to discovery of how molecular specificity is encoded. Credit Sweta/Babukrishna, TIFR Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.