Molecular Mechanisms of Peptide Translocation Across Micelles: A Case Study of Cell-Penetrating Peptide and Antimicrobial Peptide
نویسندگان
چکیده
منابع مشابه
Evaluation of Cell Penetrating Peptide Delivery System on HPV16E7 Expression in Three Types of Cell Line
Background: The poor permeability of the plasma and nuclear membranes to DNA plasmids are two major barriers for the development of these therapeutic molecules. Therefore, success in gene therapy approaches depends on the development of efficient and safe non-viral delivery systems. Objectives: The aim of this study was to investigate the in vitro delivery of plasmid DNA encoding HPV16 E7 gene...
متن کاملTranslocation of the cell-penetrating Tat peptide across artificial bilayers and into living cells.
The ability of a short, charged peptide to penetrate synthetic DOPC (1,2-dioleoyl-sn-3-glycerophosphocholine) liposomes was investigated by fluorescence confocal microscopy. The peptide, termed Tat (trans-activating transcription factor), was a 14-mer derived from the region of the HIV-1 Tat protein responsible for cellular internalization. This Tat peptide was labelled at a C-terminal cysteine...
متن کاملTranslocation of a beta-peptide across cell membranes.
Short cationic peptides derived from DNA-binding proteins, of which HIV Tat is a prototype, can cross the membranes of living cells, and they can bring covalently attached moieties (proteins, drugs) along with them. We show that a beta-amino acid analogue of Tat 47-57 enters HeLa cells with comparable efficiency to Tat 47-57 itself (YGRKKRRQRRR). The beta-peptide is comprised of residues that b...
متن کاملStructure of the antimicrobial peptide tritrpticin bound to micelles: a distinct membrane-bound peptide fold.
Tritrpticin is a member of the cathelicidin family, a group of diverse antimicrobial peptides found in neutrophil granules. The three Trp and four Arg residues in the sequence VRRFPWWWPFLRR make this a Trp-rich cationic peptide. The structure of tritrpticin bound to membrane-mimetic sodium dodecyl sulfate micelles has been determined using conventional two-dimensional NMR methods. It forms two ...
متن کاملMechanisms of antimicrobial peptide action and resistance.
Antimicrobial peptides have been isolated and characterized from tissues and organisms representing virtually every kingdom and phylum, ranging from prokaryotes to humans. Yet, recurrent structural and functional themes in mechanisms of action and resistance are observed among peptides of widely diverse source and composition. Biochemical distinctions among the peptides themselves, target versu...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Biophysical Journal
سال: 2010
ISSN: 0006-3495
DOI: 10.1016/j.bpj.2009.12.495