Side view of spike protein structure 6vyb (IMAGE) University of Warwick Caption Side view of spike protein structure 6vyb. Colors blue, red and yellow denote the 3 sub-parts of the homodimer. Credit University of Warwick Usage Restrictions Use only with credit. 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.