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Targeting peptides are genetically fused to the mCherry protein sequence and the protein is conjugated to the cCPP via a cleavable disulfide bond. Here we describe how mCherry, a fluorescent protein, can be targeted to a membrane-bound compartment, the nucleus, and a subcellular structure like the actin cytoskeleton after cCPP-mediated uptake into living cells. Conjugation of proteins to cCPPs in a cleavable manner leads to localization in the cytosol and immediate bioavailability of the protein after uptake. Proteins conjugated to cyclic cell-penetrating peptides (cCPPs) haAbstractve been shown to be effectively taken up by living cells.

Nls mcherry snapgene