Glycans (image) Arizona State University Share Print E-Mail Caption Glycans or polysaccharides adorn cell surfaces and are important for cell communication, immune response and many other vital physiological processes. A new study assembles a library of enzymes responsible for building and modifying glycans. Credit Jason Drees, Biodesign Institute at ASU Usage Restrictions None Share Print E-Mail 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.