Mucins (IMAGE) University of North Carolina Health Care Caption This image shows mucins, large proteins that form a network through bonds to give mucus its thickness and elasticity. Credit Lab of Mehmet Kesimer, PhD 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.