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The research aims to activate a caged Max transcription factor by unmasking key lysine residues.

March 21, 2026Synthesis

Ruthenium-Catalyzed Dual Lysine Deallylation Enables Unmasking and Activation of Caged Max Transcription Factor

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Innovative methods activate the Max transcription factor in a controlled manner, suggesting new approaches in protein engineering.

The research aims to activate a caged Max transcription factor by unmasking key lysine residues.
Developed caged Max using native chemical ligation and Cys-alkylation.
Masked lysine residues with N-allylcarbamate groups.
Applied ruthenium-catalyzed deallylation to restore DNA binding activity.
Successful generation of caged Max with masked Lys31/57 residues.
Demonstrated that masking inhibits Max DNA binding activity.
Showed effective restoration of DNA binding upon deallylation with a ruthenium catalyst.

Khoury et al. (2026) studied this question.

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