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2010•Bioconjugate ChemistryRequires access

Photocleavable Polyethylene Glycol for the Light-Regulation of Protein Function

Wesleigh E. Georgianna, Hrvoje Lusic, Andrew L. McIver, Alexander Deiters

Open publisher page 50 citations

Abstract

PEGylation is commonly employed to enhance the pharmacokinetic properties of proteins, but it can interfere with natural protein function. Protein activity can thus be abrogated through PEGylation, and a controllable means to remove the polyethylene glycol (PEG) group from the protein is desirable. As such, light affords a unique control over biomolecules through the application of photosensitive groups. Herein, we report the synthesis of a photocleavable PEG reagent (PhotoPEG) and its application to the light-regulation of enzyme activity.

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What this paper is about

PEGylation is commonly employed to enhance the pharmacokinetic properties of proteins, but it can interfere with natural protein function. Protein activity can thus be abrogated through PEGylation, and a controllable means to remove the polyethylene glycol (PEG) group from the protein is desirable. As such, light affords a unique control over biomolecules through the application of photosensitive groups. Herein, we report the synthesis of a photocleavable PEG reagent (PhotoPEG) and its application to the light-regulation of enzyme activity.

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Available abstract

PEGylation is commonly employed to enhance the pharmacokinetic properties of proteins, but it can interfere with natural protein function. Protein activity can thus be abrogated through PEGylation, and a controllable means to remove the polyethylene glycol (PEG) group from the protein is desirable. As such, light affords a unique control over biomolecules through the application of photosensitive groups. Herein, we report the synthesis of a photocleavable PEG reagent (PhotoPEG) and its application to the light-regulation of enzyme activity.

Key concepts: PEGylation, Chemistry, Polyethylene glycol, PEG ratio, Reagent, Biomolecule, Combinatorial chemistry, Function (biology)

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