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Service Line:400-621-6806

Address:FL-4, Building A5, International Enterprise Community, Tianjin, China

Protein Modification and Labeling Services

As an experienced researcher & explorer in recombinant antibody and protein production, KMD Bioscience offers unrivaled expertise in the research of protein modification and detection. With the combination of an extensive background in biopharmaceutical and proprietary development platforms, we can provide comprehensive protein modification and detection services based on the full understanding of every client's needs, such as protein purification, GST fusion protein purification, protein sequencing, protein labeling, protein PEGylation and endotoxin testing.


Protein Purification Services:


Protein purification is vital for the characterization of the function, structure and interactions of the target protein. We can propose a solution to quickly and cost-effectively purify your proteins to your specifications and provide professional scientific support with every step of the way. Our protein purification services include natural and recombinant protein purification.


GST Fusion Protein Purification Services:


GST fusion protein has been widely used in recombinant protein expression and production. GST folds rapidly into a stable and highly soluble protein upon translation, so inclusion of the GST tag often promotes greater expression and solubility of recombinant proteins than expression without the tag. GST-tagged fusion proteins also can be purified or detected based on the ability of GST to bind its substrate, glutathione (GSH).


Protein Sequencing Services:


We have established a comprehensive protein sequencing platform to meet various needs of our clients including N-terminal sequencing and de novo sequencing. Advantages of N-terminal Edman sequencing include high sensitivity, even with picomoles of protein. Proteins can be sequenced in solution, gels or on PVDF blots. If a protein sequence is different from what's available in the protein sequence databases, de novo sequencing is the only way to get a 100% accurate result.


Protein Labeling Services:


 KMD Bioscience has developed a series of protein labeling techniques for last 8 years. Meanwhile, KMD Bioscience provides personalized solutions to help researchers’ different requirements. Such as enzyme conjugation, fluorescent labeling, isotope labeling, PEG labeling, biotinylation, magnetic beads conjugation, quantum dots labeling.


Protein PEGylation Services:


PEGylation refers to adding polyethylene glycol (PEG) polymer chains onto target molecules to monitor their physiochemical properties. In many cases, protein PEGylation not only significantly improve the physico-chemical properties, but also modify the pharmacokinetics and pharmacodynamics of a drug. KMD Bioscience provides custom PEGylated conjugates and PEGylation services for proteins, peptides, oligonucleotides, and small molecules.


Endotoxin Testing Services:


We provide endotoxin testing services for clients by the kinetic turbidimetric method. As the concentration of insoluble coagulin increases during the LAL reaction, the turbidity of the reaction mixture increases. We can also provide a gel-clot method for the detection of endotoxin levels in samples. Our experienced specialists can help improve the compliance and efficiency of your endotoxin testing program and help you to achieve control, consistency and precision.


How to Order?

If you have any questions regarding our services or products, please feel free to contact us by E-mail: or Tel: +86-400-621-6806;