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Title: Reinventing cell penetrating peptides using glycosylated methionine sulfonium ion sequences

Abstract

Cell penetrating peptides (CPPs) are intriguing molecules that have received much attention, both in terms of mechanistic analysis and as transporters for intracellular therapeutic delivery. Most CPPs contain an abundance of cationic charged residues, typically arginine, where the amino acid compositions, rather than specific sequences, tend to determine their ability to enter cells. Hydrophobic residues are often added to cationic sequences to create efficient CPPs, but typically at the penalty of increased cytotoxicity. Here, we examined polypeptides containing glycosylated, cationic derivatives of methionine, where we found these hydrophilic polypeptides to be surprisingly effective as CPPs and to also possess low cytotoxicity. X-ray analysis of how these new polypeptides interact with lipid membranes revealed that the incorporation of sterically demanding hydrophilic cationic groups in polypeptides is an unprecedented new concept for design of potent CPPs.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1]
  1. Univ. of California, Los Angeles, CA (United States)
Publication Date:
Research Org.:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1215430
Grant/Contract Number:  
AC02-76SF00515; 1308081
Resource Type:
Accepted Manuscript
Journal Name:
ACS Central Science
Additional Journal Information:
Journal Volume: 1; Journal Issue: 2; Journal ID: ISSN 2374-7943
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English
Subject:
59 BASIC BIOLOGICAL SCIENCES

Citation Formats

Kramer, Jessica R., Schmidt, Nathan W., Mayle, Kristine M., Kamei, Daniel T., Wong, Gerard C.L., and Deming, Timothy J. Reinventing cell penetrating peptides using glycosylated methionine sulfonium ion sequences. United States: N. p., 2015. Web. doi:10.1021/acscentsci.5b00054.
Kramer, Jessica R., Schmidt, Nathan W., Mayle, Kristine M., Kamei, Daniel T., Wong, Gerard C.L., & Deming, Timothy J. Reinventing cell penetrating peptides using glycosylated methionine sulfonium ion sequences. United States. https://doi.org/10.1021/acscentsci.5b00054
Kramer, Jessica R., Schmidt, Nathan W., Mayle, Kristine M., Kamei, Daniel T., Wong, Gerard C.L., and Deming, Timothy J. Wed . "Reinventing cell penetrating peptides using glycosylated methionine sulfonium ion sequences". United States. https://doi.org/10.1021/acscentsci.5b00054. https://www.osti.gov/servlets/purl/1215430.
@article{osti_1215430,
title = {Reinventing cell penetrating peptides using glycosylated methionine sulfonium ion sequences},
author = {Kramer, Jessica R. and Schmidt, Nathan W. and Mayle, Kristine M. and Kamei, Daniel T. and Wong, Gerard C.L. and Deming, Timothy J.},
abstractNote = {Cell penetrating peptides (CPPs) are intriguing molecules that have received much attention, both in terms of mechanistic analysis and as transporters for intracellular therapeutic delivery. Most CPPs contain an abundance of cationic charged residues, typically arginine, where the amino acid compositions, rather than specific sequences, tend to determine their ability to enter cells. Hydrophobic residues are often added to cationic sequences to create efficient CPPs, but typically at the penalty of increased cytotoxicity. Here, we examined polypeptides containing glycosylated, cationic derivatives of methionine, where we found these hydrophilic polypeptides to be surprisingly effective as CPPs and to also possess low cytotoxicity. X-ray analysis of how these new polypeptides interact with lipid membranes revealed that the incorporation of sterically demanding hydrophilic cationic groups in polypeptides is an unprecedented new concept for design of potent CPPs.},
doi = {10.1021/acscentsci.5b00054},
journal = {ACS Central Science},
number = 2,
volume = 1,
place = {United States},
year = {Wed Apr 15 00:00:00 EDT 2015},
month = {Wed Apr 15 00:00:00 EDT 2015}
}

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Cited by: 23 works
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