A protein structure comparison (IMAGE) Hokkaido University Caption A protein structure comparison between PBSase (pink gold backbone) and PET degrading enzyme PET6 (cobalt backbone). The catalytic centers are indicated by magenta and green. PET binding residues of PET6 are shown in yellow. Credit Yutaro Kimura et al., Environmental Microbiology, September 29, 2023. Usage Restrictions This image can be used for reporting this research work without obtaining permission if credited as instructed. License Original 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.