Protein Synthesis for Site-Directed Labeling

Site-directed Protein Labeling

Proteins with unique functional groups such as affinity labels, fluorescence moieties or drug conjugates offer high potential in many biotechnological or biomedical applications.

An attractive alternative to known conventional posttranslational methods of protein modification is the site-directed incorporation of unnatural amino acids. In a specialized cell-free system, amino acids labeled with dyes or chemoselective reactive amino acids are incorporated stoichiometrically at defined positions of the expressed protein. Such homogenous site specific-modified proteins are the basis for a broad range of downstream applications.

Protein-drug conjugates
Stoichiometric incorporation of dyes, PEG or other functionality
Labeling with a broad range of commercially available chemoselective reagents
Synthesis and site-directed labeling

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RTS 100 Site-specific Label Kit

RTS 100 Site-specific Label Kit

FeaturesEfficient incorporation of chemoselective reactive amino acidsHigh-yield synthesis of protei..


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