A versatile amino acid analogue of the solvatochromic fluorophore 4-N,N-dimethylamino-1,8-naphthalimide: a powerful tool for the study of dynamic protein interactions.

Abstract excerpt

We have developed a new unnatural amino acid based on the solvatochromic fluorophore 4-N,N-dimethylamino-1,8-naphthalimide (4-DMN) for application in the study of protein-protein interactions. The fluorescence quantum yield of this chromophore is highly sensitive to changes in the local solvent environment, demonstrating "switch-like" emission properties characteristic of the dimethylaminophthalimide family of...

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