Protein Structure (IMAGE) University of Pittsburgh Caption Deletions in the SARS-CoV-2 spike protein sequence (horizontal cyan bar) affect the shape of different parts of the protein (cyan). Bar graph at left shows the relative frequency of recurrent deletions in the correspondingly colored part of the spike protein. Deletions tend to occur outside the region that binds to cells at the beginning of the infection. Credit Kevin McCarthy and Paul Duprex 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.