Protein Expression Services

Accelerate your studies with fast, reliable, and flexible protein expression services. Backed by over two decades of experience expressing proteins for customer projects and as antigen for our in-house produced antibodies, we have the expertise to deliver what your project needs.

  • Highly standardized processes ensure efficiency
  • Rapid turnaround times keep you advancing
  • Customizable offerings meet your project’s unique needs
  • A focus on quality gives you confidence and peace of mind

Choose ProMab To Maximize Confidence

Whether you’re pushing the frontiers of therapeutic development or conducting the foundational studies essential for expanding basic biological insight, ProMab’s Protein Expression Services are a fast and reliable way to keep your projects moving forward fast.

Our skilled team of scientists provides recombinant protein expression services using a range of host systems, so you can obtain protein suitable for different applications such as functional assays, target validation, or antibody development.

While we have a standardized offering to simplify the ordering process, we can work closely with you to create a custom protein expression project designed to meet your unique needs.

Explore Our Fully Customizable Protein Expression Services

Stable Cell Line Development

Maximize protein production with a stable cell line generated by our experienced scientific team using optimized, proprietary technologies.

E. coli Expression

Get recombinant protein fast with ProMab’s E. coli Expression Service. From expression vector design to scale-up and tag-removal, we handle every step of the process.

Baculovirus Expression

Achieve reliable, high-level expression of proteins with complex post-translational modifications with our Baculovirus Expression Service—isolated protein available in as little as 8 weeks.

Mammalian Expression

Confidently advance your studies with mammalian proteins expressed in high-producing human cell lines—standard service delivers in as little as 9 weeks, custom services offer complete flexibility.

Peptide Synthesis

Obtain milligram to several hundred gram quantities of peptides synthesized using the latest technologies—solid phase and/or liquid phase approaches available.

Gene Synthesis

Move quickly and efficiently by adding ProMab’s gene synthesis services to your protein expression project. We focus on purity, quality, and fast turnaround times.


years delivering outstanding services


projects in CAR-T cell engineering


CAR-T and CAR-NK cells generated


Out-licensed CAR-T in vivo models

Push the Boundaries

We’ll take care of your custom protein expression project so that you can focus on delivering insights and innovations.

Featured Publications

mRNA-Lipid Nanoparticle (LNP) Delivery of Humanized EpCAM-CD3 Bispecific Antibody Significantly Blocks Colorectal Cancer Tumor Growth Cancers (Basel). 2023 May; 15(10): 2860.
Bispecific BCMA-CD3 Antibodies Block Multiple Myeloma Tumor Growth Cancers (Basel). 2022 May 20;14(10):2518.
Novel CD37, Humanized CD37 and Bi-Specific Humanized CD37-CD19 CAR-T Cells Specifically Target Lymphoma Cancers (Basel). 2021 Mar; 13(5): 981.