Site-specific labeling of C- and/or N-terminus
| Amine and Thiol Protein labeling Kits
| Luminescent Protein Labeling
The novel labeling kits presented here are designed for site-specific labeling of
- any protein’s C-terminus using convenient, fast, mild and biocompatible oxyamine–ketone ligation (scheme),
- an N-terminal cysteine using native chemical ligation with a fluorophore-thioester, or
- a protein’s C & N-termini simultaneously with two colors in a One-Pot Dual Color labeling reaction for fluorescence resonance energy transfer (FRET) studies
General method for protein modification at the C terminus: Under mild and biocompatible conditions a protein thioester is transformed with 1,2-bis(oxyamino)ethane into an oxyamino-modified species that in a second step reacts rapidly with ketones carrying a fluorescent label.
(adapted from Yi et al. (2010))
Selected References
Yi, L. et al. (2010) A Highly Efficient Strategy for Modification of Proteins at the C Terminus. Angewandte Chemie Int. Ed. 49:1-6
Yi, L. et al. (2011) One-Pot Dual-Labeling of a Protein via Two Chemoselective Reactions. Angewandte Chemie Int. Ed. 50:8287-90
Yi, L. et al. (2011) One-Pot Dual-Labeling of a Protein via Two Chemoselective Reactions. Angewandte Chemie Int. Ed. 50:8287-90

