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Custom protein & antibody production

We deliver the protein materials needed for your research and proof-of-concept studies, as well as assessing the developability of your antibody to mitigate risks for the later stages of your project.

GTP Bioways CDMO - Antibody drug conjugate development

Unique expertise in recombinant protein and antibody production

GTP Bioways started providing custom recombinant protein production services in 2000 to help accelerate the development of innovative pharmaceutical and life science products.

Armed with this experience, our team has the agility to express and purify even the most challenging proteins. Our fully integrated services cover each step from gene synthesis and expression vector construction to protein batch production from milligrams to decagrams.

Efficient & customised services for the production of recombinant proteins and antibodies

Our team has extensive experience in the production of a variety of proteins including antibodies, antibody fragments, enzymes, antigens, cytokines, hormones, receptors and more.

Customised protein expression services in a range of expression systems

We will help select the most appropriate expression system based on the characteristics of your protein and your expectations. For the best chance of success, our feasibility studies can also include the evaluation of several expression systems in parallel.

E. coli

We have used a diversity of strategies to successfully develop protein expression processes in E. coli.


Our team has a strong experience with various recognised P. pastoris expression systems.

Mammalian cells

We offer both transient and stable expression of proteins and antibodies in CHO and HEK cells.

Insect cells

We are experts in the production of target, reagent and vaccine proteins using insect cells.

Antibody production services for R&D studies

GTP Bioways offers tailored antibody production services. We can deliver milligrams to grams of your mAb candidates to help you complete your R&D studies.

To mitigate risk in your antibody development program, we also offer standard developability packages to help you select the candidate with the best chances of success in the clinic.

GTP Bioways CDMO - Bioconjugates Analytical Development

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A Guide to Smooth CDMO Tech Transfer

The key parameters to be considered while choosing your next CDMO, as well as our tips to assess those parameters, and more!