Variants of the antibody herceptin that interact with HER2 and VEGF at the antigen binding site
Bostrom, J., Yu, S.F., Kan, D., Appleton, B.A., Lee, C.V., Billeci, K., Man, W., Peale, F., Ross, S., Wiesmann, C., Fuh, G.(2009) Science 323: 1610-1614
- PubMed: 19299620 
- DOI: 10.1126/science.1165480
- Primary Citation of Related Structures:  
3BDY, 3BE1 - PubMed Abstract: 
The interface between antibody and antigen is often depicted as a lock and key, suggesting that an antibody surface can accommodate only one antigen. Here, we describe an antibody with an antigen binding site that binds two distinct proteins with high affinity ...