Transformation of an antimicrobial peptide into a plasma membrane-permeable, mitochondria-targeted peptide via the substitution of lysine with arginine

Chem Commun (Camb). 2012 Nov 21;48(90):11097-9. doi: 10.1039/c2cc35872g. Epub 2012 Oct 5.

Abstract

Simple substitution of D-lysine with D-arginine in antimicrobial peptide (RLA) considerably improved its membrane permeability and increased mitochondrial accumulation. The potential use of RLA in preventing apoptotic cell death is also demonstrated through delivery of the Bcl-x(L) BH4 domain peptide.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Anti-Infective Agents / chemistry*
  • Anti-Infective Agents / toxicity
  • Antimicrobial Cationic Peptides / chemistry*
  • Antimicrobial Cationic Peptides / toxicity
  • Apoptosis / drug effects
  • Arginine / chemistry
  • Arginine / metabolism
  • Cell Membrane / metabolism
  • Cell Membrane Permeability
  • HeLa Cells
  • Humans
  • Lysine / chemistry
  • Lysine / metabolism
  • Mitochondria / metabolism*
  • bcl-X Protein / chemistry

Substances

  • Anti-Infective Agents
  • Antimicrobial Cationic Peptides
  • bcl-X Protein
  • Arginine
  • Lysine