Abstract: Provided herein are methods of producing a recombinant polypeptide containing two chains, such as an immune mobilizing monoclonal T-cell receptor against cancer (ImmTAC) protein including an alpha chain and a beta chain. In particular, methods are provided for producing heterologous secretory proteins in bacteria through utilization of optimized expression vectors and culture processes.

Abstract: The present disclosure relates to the production of multimeric polypeptides (e.g., comprising two or more subunits, each subunit comprising two or more polypeptide chains, such as a multispecific or bispecific antibody) in eukaryotic host cells. In some embodiments, provided herein are methods for producing a multimeric polypeptide in a eukaryotic host cell using a host cell that comprises a polynucleotide comprising a translation initiation sequence operably linked to an open-reading frame encoding each polypeptide of the multimeric polypeptide. Advantageously, the present disclosure demonstrates that tuning the strength of the translation initiation sequences linked to each open-reading frame allows for higher production of the multimeric polypeptide with fewer incorrectly assembled side products. The present disclosure further provides cells, methods of screening, and kits related thereto.

Abstract: Provided herein are methods of producing a recombinant polypeptide containing two chains, such as an immune mobilizing monoclonal T-cell receptor against cancer (ImmTAC) protein including an alpha chain and a beta chain. In particular, methods are provided for producing heterologous secretory proteins in bacteria through utilization of optimized expression vectors and culture processes.

Abstract: Provided herein are methods of producing a recombinant polypeptide containing two chains, such as an immune mobilizing monoclonal T-cell receptor against cancer (ImmTAC) protein including an alpha chain and a beta chain. In particular, methods are provided for producing heterologous secretory proteins in bacteria through utilization of optimized expression vectors and culture processes.

Abstract: Provided herein are methods of producing a recombinant polypeptide containing two chains, such as an immune mobilizing monoclonal T-cell receptor against cancer (ImmTAC) protein including an alpha chain and a beta chain. In particular, methods are provided for producing heterologous secretory proteins in bacteria through utilization of optimized expression vectors and culture processes.

Abstract: Provided herein are methods of producing a recombinant polypeptide containing two chains, such as an immune mobilizing monoclonal T-cell receptor against cancer (ImmTAC) protein including an alpha chain and a beta chain. In particular, methods are provided for producing heterologous secretory proteins in bacteria through utilization of optimized expression vectors and culture processes.

Abstract: The present invention relates generally to the fields of molecular biology and protein technology. More specifically, the invention concerns signal sequences for the secretion of heterologous polypeptide from bacteria. The invention also concerns recombinant polypeptides and uses thereof.

Abstract: The present invention provides methods and compositions for improved expression and production of recombinant antibodies in prokaryotic expression systems. Particularly contemplated are prokaryotic expression and production of full length aglycosylated antibodies. The antibody products of the invention can be used in various aspects of biological research, diagnosis and medical treatment.

Abstract: The present invention provides methods and compositions for improved expression and production of recombinant antibodies in prokaryotic expression systems. Particularly contemplated are prokaryotic expression and production of full length aglycosylated antibodies. The antibody products of the invention can be used in various aspects of biological research, diagnosis and medical treatment.

Abstract: The instant invention discloses the unexpected result that mutant signal sequences with reduced translational strength provided essentially complete processing and high levels of expression of a polypeptide of interest as compared to wild type signal sequences, and that many mammalian polypeptides require a narrow range of translation levels to achieve maximum secretion. A set of signal sequence vectors provides a range of translational strengths for optimizing expression of a polypeptide of interest.

Abstract: The instant invention discloses the unexpected result that mutant signal sequences with reduced translational strength provided essentially complete processing and high levels of expression of a polypeptide of interest as compared to wild type signal sequences, and that many mammalian polypeptides require a narrow range of translation levels to achieve maximum secretion. A set of signal sequence vectors provides a range of translational strengths for optimizing expression of a polypeptide of interest.

Abstract: The instant invention discloses the unexpected result that mutant signal sequences with reduced translational strength provided essentially complete processing and high levels of expression of a polypeptide of interest as compared to wild type signal sequences, and that many mammalian polypeptides require a narrow range of translation levels to achieve maximum secretion. A set of signal sequence vectors provides a range of translational strengths for optimizing expression of a polypeptide of interest.

Abstract: The instant invention discloses the unexpected result that mutant signal sequences with reduced translational strength provided essentially complete processing and high levels of expression of a polypeptide of interest as compared to wild type signal sequences, and that many mammalian polypeptides require a narrow range of translation levels to achieve maximum secretion. A set of signal sequence vectors provides a range of translational strengths for optimizing expression of a polypeptide of interest.