Gut Bacteria (IMAGE) University of Basel Caption Depiction of a gut bacteria attached to cellulose fibers through adhesion proteins on the bacterial surface. Cohesin (yellow) and Dockerin (green) assemble into a protein complex in two possible configurations, referred to as dual binding modes. The complex is activated by mechanical tension, which strengthens it and facilitates bacterial adhesion to fibers under shear flow. Credit University of Basel, Department of Chemistry Usage Restrictions With current release only 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.