| 摘要 |
Provided herein are methods, nucleic acids, polypeptides, compositions, and kits relating to the conjugation of a heterologous polypeptide to a molecule of interest during production of the polypeptide in cell culture. In various embodiments, the heterologous polypeptide is linked to a sortase ligation sequence and the molecule of interest is linked to a complementary sortase ligation sequence, such that expression of the heterologous protein in the presence of the molecule of interest and cells expressing a surface-associated sortase with the sortase catalytic domain exposed to the extracellular medium results in ligation of the heterologous polypeptide to the molecule of interest to form a conjugated polypeptide. |
