Plastic Proteins (IMAGE) DOE/Pacific Northwest National Laboratory Caption Unique sequences of side chains (in various colors) hang off the TZP-based backbone (black) in this inexpensive, easy-to-synthesize polymer system that mimics proteins in important ways. Credit Jay Grate/PNNL Usage Restrictions Please credit Jay Grate/PNNL 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.