Featured Platforms

Custom Protein Generation

Mammalian- Derived Products

Microbial- Derived Products

Antibody Drug Conjugates

Bispecific Ab Platform

Technologies & Platforms

Microbial Expression and Fermentation Platform

WuXi Biologics has become a leading global biologics Contract Development and Manufacturing Organization (CDMO) for our partners and clients because of our “truly ONE” concept to commercialization drug development platform and excellence in project execution.  To continue to support the biologics industry and our client’s needs we have established extensive and state-of-the-art technologies for the development and cGMP manufacture of proteins and plasmid produced from microbial expressions systems.

Types of Biologics and Vaccines

We have the expertise to develop and produce a wide-variety of biologics and vaccines from our various microbial platforms.

Recombinant Protein

Fc-fusion Protein fcfusion2

Antibody Fragments antibody_fragments

Plasmid DNA plasmid2


Microbial Expression Systems

Recombinant proteins, plasmid and other biologics can be produced and manufactured from several well-established bacterial and yeast expression systems including:

  • E. coli BL21  
  • Pichia pastoris

DNA/gene synthesis and vector construction as well as transfection and clone selection can all be accomplished by our experienced cell line development team.


R&D-Grade Protein & Plasmid Generation

We have one of the largest R&D groups dedicated to small-scale protein and plasmid production in the industry.   Our facilities with over 200 scientists in Hangzhou, Shanghai and Wuxi produce thousands of high-quality biologics for research and lead drug candidate screening each year.  Highlights of our research-grade biologics generation services include:

  • High-throughput production and analysis
  • Up to gram-level production capabilities
  • Anaerobic and Aerobic microbial expression systems
  • Full analytical and product characterization capabilities
  • Conduct critical manufacturability and developability studies
  • FTE-option for production and analysis of multiple products (ideal as an extension of your research team)


Integrated – Expertise – Quality – Capacity

See the benefits of WuXi Biologics’ truly ONE services

Fermentation (Upstream) and Purification (Downstream) Development

Batch and fed-batch (including high-density fed-batch) processes and the subsequent downstream purification processes can be developed by our highly-trained teams of development scientists. Folding/refolding and chemostat unit operation/process step development is also available.

Varying scales for development activities can be conducted using our standard platform or we can develop customized processes for plasmid DNA, antibody fragments, large peptides and fusion and recombinant proteins.

Multiple Bioreactor scales and capacity includes 1 L, 3 L, 5 L and 10 L

  • Early stage (1 – 20 mg scale)
  • Small scale (20 – 1,000 mg scale)
  • Process integration (500 mg – 5 g scale)
  • Scale-up and pilot production (10 g– kg scale)

Other Key CMC Development activities:

In addition to the teams established in Hangzhou, our large experienced development teams in Shanghai and Wuxi can also support products from microbial expression platforms. Services include:

Non-GMP/Pilot and GMP Manufacturing

(Non-GMP/Pilot production available Q2 2020 and GMP Manufacturing available Q4 2020)

This multi-purpose/multi-product facility can produce high quality (HQ) plasmid DNA and diverse types of protein biotherapeutics for IND-enabling toxicology studies or other preclinical and CMC development activities at various scales.  Site features include:

  • 110 square meters HQ suites
  • 10-50 L scale fermenters
  • Process scalability and robustness evaluation
  • Scale-up development studies
  • Large-scale process or batch record
    verification / qualification

We have designed and constructed our microbial-based large-scale manufacturing facilities based on U.S., EU and Chinese cGMP requirements.  The site will take advantage of our world-class quality system that has already been established and audited by the U.S. FDA and EMA in our Wuxi manufacturing facilities.

  • 2,000 square meters GMP clean room suites (both upstream and downstream)
  • Multiple fermenters up to 2000 L
  • Three state-of-the-art downstream suites
  • Flexible facility design for multi-use/multi-products


GMP Manufacture (Fill & Finish) of Drug Product

We can support drug substance produced from the Hangzhou site in one of our existing Drug Product manufacturing facilities. Click Here for more information

Case Studies for Microbial Expression

CYP-X Protein Expression in E.coli for structural analysis
Protein Refolding Analysis using HT-Approach
Trouble-shooting product issues in GMP manufacturing