Strain Development

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Trust in our ability to develope high-yielding production strains of E. coli,  P. pastoris and fungi

Whether you need fast prototyping, high-yield production or complex protein expression, we provide host selection and engineering to develop your tailor-made production strain.

53Biologics Ecoli

Escherichia coli Strain Development

The well-characterized biology and regulatory acceptance of E. coli make it the ideal host for fast, cost-efficient projects. At 53Biologics we provide engineered E. coli strains, optimized plasmids and high-throughput workflows to maximize protein productivity while minimizing timelines to clinic.

Pichia pastoris Strain Development

Our expertise in yeast expression systems, particularly P. pastoris, allows us to produce recombinant proteins with high yield and scalability. Using advanced molecular tools (promoters, signal peptides, secretion sequences, helpers factors, etc…) to obtain your recombinant protein. We use the most advanced and IP free molecular biology tools to bring out the full potential of yeasts.

53Biologics Pichia
53Biologics Cell Banking Fungal

Fungal Expression Systems

Fungal platforms have demonstrated the highest potential in terms of protein productivity, complexity and efficiency. 53Biologics is the world-wide CDMO leader developing fungal strains Trichoderma, Aspergillus or the revolutionary Myceliophthora termophila, nicknamed C1 and transferring production processes to the industry.

Our Microbial Development Workflow

From aminoacid sequence to strain to GMP MCB fully characterized for GMP production, our experts support you through every step.

Gene & plasmid design

Design of plasmids for maximum protein expression

Strain engineering and screening

Selection of the most suitable cells and RCB development

Cell bank generation

WCB/MCB generation and characterization with long-term storage available

Process Development

Common challenges, such as low expression or inclusion bodies, are addressed

GMP manufacturing

From pre-clinical to commercial supply with in-house fill & finish

A CDMO Partner You Can Trust

53Biologics ensures your microbial projects are developed under the highest international quality standards

25

successful audits in the last two years

EMA

 manufacturing authorization

QMS

21 CFR & Eudralex vol.4 compliant

Discover more about 53Biologics protein services

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