Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avis › Tidsskriftartikel › Forskning › peer review
The N-terminus of α-synuclein is essential for both monomeric and oligomeric interactions with membranes. / Lorenzen, Nikolai; Lemminger, Lasse; Pedersen, Jannik Nedergaard et al.
I: FEBS Letters, Bind 588, Nr. 3, 31.01.2014, s. 497-502.Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avis › Tidsskriftartikel › Forskning › peer review
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TY - JOUR
T1 - The N-terminus of α-synuclein is essential for both monomeric and oligomeric interactions with membranes
AU - Lorenzen, Nikolai
AU - Lemminger, Lasse
AU - Pedersen, Jannik Nedergaard
AU - Nielsen, Søren Bang
AU - Otzen, Daniel
N1 - Copyright © 2013 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.
PY - 2014/1/31
Y1 - 2014/1/31
N2 - The intrinsically disordered protein α-synuclein (αSN) is linked to Parkinson's Disease and forms both oligomeric species and amyloid fibrils. The N-terminal part of monomeric αSN interacts strongly with membranes and αSN cytotoxicity has been attributed to oligomers' ability to interact with and perturb membranes. We show that membrane folding of monomeric wt αSN and N-terminally truncated variants correlates with membrane permeabilization. Further, the first 11 N-terminal residues are crucial for monomers' and oligomers' interactions with and permeabilization of membranes. We attribute oligomer permeabilization both to cooperative electrostatic interactions through the N-terminus and interactions mediated by hydrophobic regions in the oligomer.
AB - The intrinsically disordered protein α-synuclein (αSN) is linked to Parkinson's Disease and forms both oligomeric species and amyloid fibrils. The N-terminal part of monomeric αSN interacts strongly with membranes and αSN cytotoxicity has been attributed to oligomers' ability to interact with and perturb membranes. We show that membrane folding of monomeric wt αSN and N-terminally truncated variants correlates with membrane permeabilization. Further, the first 11 N-terminal residues are crucial for monomers' and oligomers' interactions with and permeabilization of membranes. We attribute oligomer permeabilization both to cooperative electrostatic interactions through the N-terminus and interactions mediated by hydrophobic regions in the oligomer.
U2 - 10.1016/j.febslet.2013.12.015
DO - 10.1016/j.febslet.2013.12.015
M3 - Journal article
C2 - 24374342
VL - 588
SP - 497
EP - 502
JO - F E B S Letters
JF - F E B S Letters
SN - 0014-5793
IS - 3
ER -