Coronavirus structure (IMAGE) Washington State University Caption In the Coronavirus structure, viral spike proteins interact with the host cell to mediate entry via a receptor binding domain (RBD) and motif (RBM). The researchers conducted networks analyses of the genome to better understand the virus' entryways. Credit WSU Usage Restrictions none 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.