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Protein Expression Services

Custom protein expression services from gene to purified protein. We support recombinant protein production, purification, refolding, and scale-up with flexible workflows tailored to your target and application.

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Overview Capabilities Expression Systems Expression Strategy Yield Expectations Purification Contact

Custom Protein Expression Services Overview

Protein expression requires more than just producing a protein—it depends on the right combination of gene design, vector construction, expression strategy, purification, and quality control.

We provide integrated protein expression services that support your project from DNA to purified protein. Our workflows are designed to improve expression success, protein quality, and reproducibility across a wide range of targets.

Services can start from customer-supplied sequences or be fully managed through our gene-to-protein workflow, including gene synthesis, cloning, expression development, purification, and downstream characterization.

Gene-to-protein workflow Vector construction Protein purification Refolding support Isotope labeling Scale-up production

Flexible starting points: Projects can begin from gene sequence, plasmid DNA, or existing constructs depending on your needs.

Our integrated workflow supports efficient protein development by combining construct design, expression optimization, purification, and downstream quality review within a single service pathway.

Custom protein expression workflow from gene synthesis and cloning to recombinant protein purification and quality control
Flexible project entry points: We can start from gene sequence, cloned plasmid DNA, or existing protein expression constructs depending on your workflow needs.

Workflow model

Gene to protein

Integrated design, expression, purification, and support

Development support

Custom strategy

Project-specific expression and purification planning

Downstream options

Purify and characterize

Purification, QC, and formulation support

Scale

Research to scale-up

Flexible development from small studies to larger production

End-to-end support: From gene design to purified protein, our team provides a complete workflow tailored to your specific protein and application requirements.

Recombinant Protein Expression Capabilities

Gene and Vector Preparation

Gene synthesis, codon optimization, cloning, and protein expression vector construction to support a streamlined development cycle.

Expression Development

Project-specific protein expression planning with multiple host and system options selected to improve soluble, functional output.

Recombinant Protein Purification

Flexible purification workflows for tagged and untagged proteins with strategies tailored to each target.

Refolding Support

Refolding development support for difficult proteins and inclusion-body-associated workflows when needed.

Isotope Labeling

Stable isotope labeling support for NMR and specialized structural or ligand interaction studies.

QC and Formulation Support

Quality control test development, validation support, finished product formulation, and related downstream planning.

Protein Expression System Comparison

Different protein targets require different expression systems. The best platform depends on protein size, folding requirements, post-translational modification needs, yield goals, and downstream application.

Expression System Best For Advantages Considerations
E. coli Routine recombinant proteins, enzymes, many antigens Fast, cost-effective, scalable, high yield potential Limited post-translational modifications; some proteins may require refolding
Yeast Proteins requiring better folding than bacterial systems Good scalability, improved folding, some eukaryotic processing Glycosylation patterns may differ from mammalian systems
Insect Cells Complex recombinant proteins and many eukaryotic targets Better folding and post-translational processing Higher cost and longer development time than bacterial systems
Mammalian Cells Proteins requiring native-like folding and mammalian modifications Best fit for complex proteins and biologically relevant PTMs Higher cost, slower timelines, more complex development
Project-fit selection: We choose expression strategies based on the specific protein target, functional requirements, purification needs, and intended downstream use.

Protein Expression Strategy and Development

What drives success

  • Codon optimization and sequence design
  • Construct architecture and vector selection
  • Host or expression system fit
  • Culture conditions and scale strategy

Our approach

  • Integrated gene-to-protein workflow
  • Flexible expression system selection
  • Optimization for yield, solubility, and activity
  • Scalable from research to production
Optimized workflows: Each project is designed to balance expression efficiency, protein quality, and downstream application requirements.

Protein Yield Expectations

Final protein yield depends on target sequence, construct design, expression system, solubility, purification strategy, and whether refolding or specialized processing is required.

Project Type Typical Yield Range Notes
Small-scale expression screening Analytical to low mg Used for feasibility assessment and early optimization
Research-scale purified protein mg to tens of mg Common for functional assays, antigen work, and routine studies
Optimized expression workflow Tens of mg to higher project-dependent yields Depends strongly on protein target and purification recovery
Difficult / insoluble proteins Highly variable May require refolding, alternative systems, or customized purification strategies
Important note: Protein yield is highly target-dependent. We recommend project review during quoting so expression strategy, purification workflow, and expected output can be aligned to your application.

Typical Protein Expression Timeline

Actual timelines depend on target complexity, construct readiness, expression system, purification requirements, and whether refolding or additional optimization is needed.

Project Stage Typical Timeline Notes
Sequence review and project setup 1 - 3 business days Depends on sequence complexity and project scope
Gene synthesis and cloning Project dependent Timing varies based on construct length and vector requirements
Expression screening 1 - 2 weeks Used to identify suitable expression conditions and feasibility
Purification development 1 - 2 weeks Depends on protein behavior, tag strategy, and purity target
Research-scale purified protein 2 - 4 weeks Typical range for many standard recombinant protein projects after construct readiness
Complex or difficult targets Longer, project dependent May require refolding, alternate systems, or added optimization cycles
Scale-up and downstream preparation Additional time as needed Depends on production scale, purification, QC, and formulation scope
Planning note: The fastest projects usually start from a sequence or construct that is already ready for cloning or expression. More complex proteins may require staged development to optimize yield, solubility, and purity.

Protein Purification and Downstream Support

Tagged Proteins

Two-step purification can achieve very high purity in many tagged-protein workflows.

Untagged Proteins

Custom three-step purification strategies can be designed to improve recovery and reproducibility for untagged targets.

Scale and Capacity

Flexible purification systems and scale-up support for research through larger development needs.

Support Area Typical Focus
Capture and polishing Protein-specific purification strategy development
Refolding Recovery of difficult proteins and inclusion-body-associated targets
Characterization Project-fit QC, validation support, and performance review
Formulation Finished product handling and stability-aligned planning

Applications for Recombinant Protein Expression

Recombinant Antigens

Antigens for vaccine development and related protein development programs.

Diagnostic Proteins

Proteins for diagnostic kit development, biomarker work, and assay applications.

Functional and Structural Studies

Proteins for enzymatic assays, structure studies, ligand interaction studies, and target evaluation.

FAQ

What types of proteins can you express?

We support a wide range of recombinant proteins including enzymes, antigens, structural proteins, and proteins for functional or interaction studies.

Do you provide gene synthesis and cloning?

Yes. Services can start from sequence design and gene synthesis through cloning and vector construction.

Can you purify and refold proteins?

Yes. We offer customized purification strategies and refolding support for difficult or insoluble proteins.

What expression systems do you support?

We select expression systems based on your protein requirements to optimize yield, solubility, and activity.

Can you scale up production?

Yes. Workflows can be scaled from small research batches to larger production volumes.

What do I need to provide for a quote?

Sequence information, expression goals, purification needs, scale, and any special requirements such as labeling or refolding.

More FAQ'sAll FAQ's

Contact & Quote Request

For the fastest quote, include sequence or construct information, target protein details, desired expression goals, purification expectations, preferred scale, and any special requirements such as isotope labeling or refolding support.
Projects can start from sequence, plasmid DNA, or existing constructs—our team will align the workflow to your needs.

What to include

  • Sequence or vector information
  • Protein target and intended application
  • Purification, scale, and QC requirements
  • Special needs such as labeling, refolding, or formulation

Fastest path

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Why Choose Bio-Synthesis

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Greetings Researchers,

Please be advised that any information, guidelines, writeups, and oral/video/graphic content on our website are intended solely as general guidelines.
It is the researcher's sole responsibility to conduct thorough research on the designs of the products intended for their experiments before submitting
their designs to Biosynthesis for review of production feasibility.
Thank you for your understanding.

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