Tag-free Protein Purification

CD BioSciences provides guaranteed label-free protein purification services (an important component of prokaryotic protein expression services). Tag-free protein purification has the same sequence information as the natural protein, which is more conducive to protein crystallization experiments and protein function research.

Overall Solutions

Comparison item Tag protein Tag-free protein
Influence on protein structure and function Longer tags may limit the folding of recombinant proteins Amino acid sequence of tag-free protein and natural protein amino acid sequence
Immunogenicity Easier to produce non-specific antibodies, affecting antibody preparation Maintain the natural structure of the protein antigen
Protein crystallization and X-ray structure analysis Additional tag amino acids may cause crystal structure changes No additional tag amino acids, closer to the structure of natural protein
FDA drug inspection approval It is different from the natural protein sequence due to the additional amino acid introduced, and it is not easy to pass the review Consistent with the natural protein sequence, easy to pass review

Our Advantages

  • CD BioSciences has a first-class expert technical team: the team is professional and experienced, and we can provide you with professional protein purification services.
  • Our research supervisor and project manager will complete your project on time through open communication channels and meet your requirements.
  • CD BioSciences has established a professional after-sales service team to provide customers with efficient, fast and practical solutions.

Our Service Items

Project name Tag-free protein purification
Our services

CD BioSciences offers tag-free protein purification to meet the specific needs of different customers.

Product delivery mode

We will complete the project on time according to the agreed time. CD BioSciences offer you the following results:

1. Protein purity (85%, 90%, 95%)

2. Untagged protein (1~2mg, 2~5mg, 5~10mg)t

3. Expression strain, expression plasmid

4. QC report (SDS-PAGE, MALDI-TOF)

Price Inquiry

Why choose us?

CD BioSciences provides professional tag-free protein purifications to meet the needs of regular customers to determine hits on time and on budget. CD BioSciences relies on the world-class protein expression platform and technical expertise, we provide customers with the best quality one-stop tag-free protein purifications, including the development of experimental procedures according to different experimental needs. Please feel free to contact us for more detailed information, our scientists will tailor the most reasonable plan for your project.

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