biosynthesis of chondroitin sulfate (IMAGE) Rensselaer Polytechnic Institute Caption E. coli has been reprogrammed to produce a chondroitin sulfate, a complex sugar. Credit Rensselaer Polytechnic Institute 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.