Journal
JOURNAL OF PEPTIDE SCIENCE
Volume 15, Issue 4, Pages 259-263Publisher
WILEY
DOI: 10.1002/psc.1079
Keywords
cell-penetrating peptide; plant cell; arginine-rich peptide; fluorescence; cell wall
Ask authors/readers for more resources
Translocation of several fluorescently labeled arginine-rich peptides into intact plant cells was quantitatively examined in order to investigate the structural factors required for efficient cellular internalization, and thereby, to evaluate the potential of arginine-rich peptides as intracellular delivery vectors in plants. Cell-penetrating peptides (CPPs) such as arginine-rich peptides permit the direct introduction of biologically active macromolecules into plant cytoplasm to manipulate various intracellular processes. While a significant level of adsorption of applied arginine-rich peptides was observed in the cell walls rich in negative charges, removal of adsorbed peptides by trypsin treatment allowed determination of the amount of internalized peptides in a quantitative manner using spectrofluorometric analysis. The internalization of arginine-rich peptides depended on the number of arginine residues, and the peptide containing eight arginine residues showed most effective internalization. Besides, the position of small cargoes attached to the arginine-rich peptides markedly affected the internalization efficiency. The results obtained in this study provide useful information for the development of efficient intracellular delivery tools in plant science. Copyright (C) 2008 European Peptide Society and John Wiley & Sons, Ltd.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available