Structure of a Cow Antibody (image) American Institute of Physics Caption This image shows the crystal structure of bovine antibody BLV1H12 with the exceptionally large, "ball-and-chain" antigen binding domain depicted as red ribbons. The core domains of the heavy and light chains are colored pink and cyan, respectively. Credit D.Ekiert/University of California, San Francisco Usage Restrictions This image may be used only with appropriate caption and credit. 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.