Targeting (IMAGE) Arizona State University Caption Antibodies, (seen in green, red and orange) bind with specific membrane proteins present on the cell surface. Credit Graphic by Jason Drees for the Biodesign Institute. 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.