Research Rendering (image) Beckman Institute for Advanced Science and Technology Share Print E-Mail Caption This rendering shows the tetrameric structure of streptavidin with a biotin molecule in one of the monomers. Credit The art was prepared using VMD, by Rafael C. Bernardi. Usage Restrictions The art was prepared using VMD, by Rafael C. Bernardi. Share Print E-Mail 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.