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Trusted by Leading Research & Pharma Institutions

Mammalian Cell-Free Protein Synthesis

High-fidelity eukaryotic protein expression with optimized redox potential for native PTMs. Bypass cell viability constraints using our microsome-enriched CHO & Human cell-free platforms.

Therapeutic-grade PTMs
CHO & HEK293 Chassis
Scalable CECF Mode
GMP Ready
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Trusted by leading research and pharmaceutical institutions

MIT
Pfizer
Stanford
Roche
Johns Hopkins
Merck

Why Choose Us

Native-like PTMs (Glycosylation & Folding)
Optimized for complex Disulfide bonds
Intact Endogenous Microsomal Vesicles
Scalable from 100 μL to custom Batch/CECF

Therapeutic PTMs

N-glycosylation, Phosphorylation, Lipidation

Membrane Proteins

Direct co-translational insertion into Vesicles/Nanodiscs

Functional Biologics

Full-length IgGs, Fc-fusions, Bi-specifics

Max Yield
~0.5 mg/mL

Why Choose Our Mammalian CFPS Service

Advanced CHO & Human cell-free platforms delivering high-fidelity eukaryotic expression

Native-like PTMs

Leverage therapeutic-grade glycosylation and disulfide bond formation using endogenous mammalian machinery. Our CHO platform mimics FDA-approved biologics manufacturing.

Rapid Prototyping

Move from digital design to functional protein in hours. Bypass cell-growth bottlenecks and viability constraints for accelerated antibody screening.

Toxic Protein Tolerance

Express GPCRs, ion channels, or viral antigens that are lethal to CHO/HEK living hosts. The open system prevents host-cell apoptosis during synthesis.

Open System Control

Directly supplement chaperones, redox-shuffling reagents, or ncAAs. Precise environmental tuning for optimized folding of multi-domain proteins.

HTP Screening

Automated workflows for parallel screening of thousands of variants. Ideal for affinity maturation and genetic circuit prototyping.

Scalable CECF

Linear scale-up from 100 μL to customized liter-scale volumes using Continuous-Exchange (CECF) technology for high-yield milligram production.

Our CFPS Technology Platform

Proprietary CHO-based technology for high-yield, properly folded eukaryotic proteins

Native Microsomal Vesicles

Our CHO cell-free extracts contain intact endogenous microsomal vesicles. This provides a natural lipid environment for the co-translational insertion of complex membrane proteins and antigen-binding glycoproteins.

  • Authentic N-linked glycosylation pathways
  • Vesicular integrity for GPCR folding
  • Optimized Signal Peptide cleavage

Translational Barrier Removal

We utilize proprietary accessory proteins (GADD34 & K3L) to bypass common mammalian translation inhibition, preventing eIF2α phosphorylation and ensuring robust synthesis rates.

  • GADD34/PP1 mediated eIF2α dephosphorylation
  • Viral-derived K3L translation enhancement
  • Up to 100-fold yield improvement over crude lysate

Optimized Redox Shuffling

The open system allows for the precise titration of GSSG/GSH ratios and PDI supplementation, ensuring correct disulfide bond formation for multi-chain IgGs and fusion proteins.

  • Continuous Exchange (CECF) dialysis mode
  • Co-translational Nanodisc assembly
  • High-sensitivity Site-Specific Labeling

Service Specifications

Core parameters for our CHO-based eukaryotic CFPS platform

Parameter Specification
Available Extract Chassis CHO-K1 (Suspension-adapted), HeLa, HEK293T
Protein Target Classes Full IgG, Bi-specifics, GPCRs, Ion Channels, Glycosylated Antigens
PTM Capabilities N-glycosylation, Phosphorylation, Lipidation, Disulfide formation
Scale-up Options Batch (μL screening) to CECF (mL-L customized dialysis)
Yield Range 0.1 - 0.5 mg/mL (Functional protein in CECF mode)
Advanced QC Microsome Integrity, MS-Glycan Profiling, Functional binding (SPR/BLI)
Delivery Format Crude Reaction Mix, IMAC/SEC Purified Protein

Scientific Literature

Primary research foundational to our mammalian CFPS technology

186 Citations

Cell-Free Protein Synthesis as a Prototyping Platform for Mammalian Synthetic Biology

Kopniczky MB, et al. | ACS Synthetic Biology | 2020

Evaluates mammalian cell-free protein synthesis for circuit prototyping and therapeutic protein engineering.

View DOI
142 Citations

Design, Development and Optimization of a Functional Mammalian Cell-Free Protein Synthesis Platform

Heide C, et al. | Frontiers in Bioengineering and Biotechnology | 2020

Key optimizations for robust CHO/Human-based cell-free expression systems.

View DOI
65 Citations

Cell-Free Protein Synthesis Using Chinese Hamster Ovary Cells

Makrydaki E, et al. | Methods in Enzymology | 2021

Detailed protocols for CHO-based systems in structural biology and therapeutic screening.

View DOI

Frequently Asked Questions

Common questions about our mammalian CFPS services

Why choose CHO-based CFPS over bacterial systems?
While E. coli systems are high-yield, they cannot perform complex post-translational modifications. Our CHO platform provides therapeutic-grade glycosylation and proper disulfide bond formation, which are essential for the folding and biological activity of antibodies, cytokines, and membrane targets.
Can you express therapeutic antibodies?
Yes. We specialize in the rapid production of full-length IgGs, scFvs, and bi-specific formats. By tuning the redox environment of the CHO lysate, we ensure correct assembly of multiple chains and proper N-glycosylation in the Fc region.
How is the membrane environment provided for GPCRs?
Our mammalian extracts contain endogenous microsomal structures (ER-derived vesicles). Membrane proteins are co-translationally inserted into these vesicles. For specific applications like SPR or NMR, we can also provide nanodisc-assisted synthesis.

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