Imaging the Influx of Cell-Penetrating Peptides into the Cytosol of Individual Live Cells

Acknowledgments ............................................................................................ 512

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One of the most surprising recent findings in biology is that certain naturally

occurring and synthetic, short peptide sequences (cell penetrating peptides (CPPs))

have the ability to cross the plasma membrane of living cells even when linked to a

wide variety of peptides, proteins, and molecular cargo.