Adenovirus Protein ORF3 (image) Salk Institute Caption The tiny adenovirus protein known as ORF3 (shown in green) clears the way for adenovirus replication by creating "zip files" of genes that help the cell defend itself against the virus. O'Shea hopes to exploit this finding to create adenoviruses that selectively destroy cancer cells. Credit Image: Courtesy of Dr. Clodagh O'Shea, Salk Institute for Biological Studies Usage Restrictions News media reproduction to illustrate this story permitted with proper attribution as provided above. For one time use only. 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.