Decoding Biologics Overexpression2021-03-04T11:40:57+02:00

A Targeted Approach

53Biologics is a Contract Development and Manufacturing Organization (CDMO) with extensive experience in decoding biologics overexpression providing services of cell line transformation, banking and characterization (cGMP if requiered), analytical development, process development (USP & DSP) and batches.

  • Protein Expression – Escherichia coli, Pichia pastoris, Fungal platforms, Mammalian cell lines

  • GMP Cell Banking

  • Process Development – Upstream Development, Downstream Development, Analytics

  • Contract Manufacturing

dna ligation

Protein Expression

53Biologics has proven experience producing a broad catalog of recombinant proteins, in a wide range of microbial expression systems such as bacteria, yeast or fungi, mammalian expression systems such as CHO and insect cells like S2.

During the last years, the company has developed an efficient molecular biology toolkit to improve protein expression and stability, that is now available for its clients.

colony pcr

Process Development

We are experts in the optimization of the production process, product recovery and purification. The company goal is to get all bioprocess stages established, optimized, and characterized, ready to be transferred for pharmaceutical manufacturing.

53Biologics can implement, developt and qualify the analytical methods needed for the characterization of the protein of interest.

For preclinical drug development, 53Biologics compiles all the information required to fulfil the CMC section of the IMPD, expediting transfer to manufacturing.

rna h

GMP Cell Banking

53Biologics performs cell transformation, banking, and characterization to develop your research or master cell bank but also following the current Good Manufacturing Practices certified. GMP operations are conducted in ISO 7 and ISO 8 classified rooms and suites.

Cell line characterization is crucial to the control of the biologics manufacturing. The identity, purity and stability confirmation are key for the subsequent use. Each quality test should be adapted to the host and product so the characterization strategy must be customized for each project.

chemical formula of acid

Contract Productions

53Biologics offers to its clients a ready-to-use production facility and a very experienced team on recombinant protein batches production.

The company offers very a high production flexibility, making possible the production of batches at different fermentation volumes, with a high ability to adapt to the method transferred by the client and always meeting the agreed deadlines.


>15 years executing and leading projects of a broad catalogue of recombinant proteins in an extensive range of hosts and scales.


More than 98% of proteins in our hands have improved their production and/or recovery yields.


More than 90% of our executed project have started and finished on planed times.


An average of 3-4 contacts per week (mails, phone calls, meetings, follow up,…) with our customers during the project execution

Latest Publications

Decoding Biologics Overexpression

Contact us to explore how 53Biologics could help you. More than 98% of proteins in its hands have improved their production and/or recovery yields

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