| abstract |
The invention provides methods and compositions employing hybrid molecules of a synthetic molecule and antibody or antibody fragment comprising a selenocysteine residue, wherein the synthetic molecule is covalently linked to the antibody or antibody fragment at the selenocysteine residue. The invention also provides a composition comprising a hybrid molecule as described above and a pharmaceutically acceptable carrier. The invention further provides for methods of making the hybrid molecules, and methods of using the hybrid molecule described above to inhibit cell surface receptor binding. |