Model of the FLR Protein (IMAGE) Vanderbilt University Caption Space‑filling molecular model of the FLR protein clearly shows its barrel structure: The same structure that is found in 10 percent of all proteins. Credit Courtesy of the Meiler Lab 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.