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@ARTICLE{DiSomma:889023,
author = {Di Somma, Angela and Avitabile, Concetta and Cirillo,
Arianna and Moretta, Antonio and Merlino, Antonello and
Paduano, Luigi and Duilio, Angela and Romanelli, Alessandra},
title = {{T}he antimicrobial peptide {T}emporin {L} impairs {E}.
coli cell division by interacting with {F}ts{Z} and the
divisome complex},
journal = {Biochimica et biophysica acta / General subjects},
volume = {1864},
number = {7},
issn = {0304-4165},
address = {Amsterdam [u.a.]},
publisher = {Elsevier},
reportid = {FZJ-2020-05396},
pages = {129606},
year = {2020},
abstract = {BackgroundThe comprehension of the mechanism of action of
antimicrobial peptides is fundamental for the design of new
antibiotics. Studies performed looking at the interaction of
peptides with bacterial cells offer a faithful picture of
what really happens in nature.MethodsIn this work we focused
on the interaction of the peptide Temporin L with E. coli
cells, using a variety of biochemical and biophysical
techniques that include: functional proteomics, docking,
optical microscopy, TEM, DLS, SANS, fluorescence.ResultsWe
identified bacterial proteins specifically interacting with
the peptides that belong to the divisome machinery; our data
suggest that the GTPase FtsZ is the specific peptide target.
Docking experiments supported the FtsZ-TL interaction;
binding and enzymatic assays using recombinant FtsZ
confirmed this hypothesis and revealed a competitive
inhibition mechanism. Optical microscopy and TEM
measurements demonstrated that, upon incubation with the
peptide, bacterial cells are unable to divide forming long
necklace-like cell filaments. Dynamic light scattering
studies and Small Angle Neutron Scattering experiments
performed on treated and untreated bacterial cells,
indicated a change at the nanoscale level of the bacterial
membrane.ConclusionsThe peptide temporin L acts by a
non-membrane-lytic mechanism of action, inhibiting the
divisome machinery.},
cin = {JCNS-FRM-II / MLZ},
ddc = {610},
cid = {I:(DE-Juel1)JCNS-FRM-II-20110218 / I:(DE-588b)4597118-3},
pnm = {6G4 - Jülich Centre for Neutron Research (JCNS) (POF3-623)
/ 6G15 - FRM II / MLZ (POF3-6G15)},
pid = {G:(DE-HGF)POF3-6G4 / G:(DE-HGF)POF3-6G15},
experiment = {EXP:(DE-MLZ)KWS2-20140101 / EXP:(DE-MLZ)KWS3-20140101},
typ = {PUB:(DE-HGF)16},
pubmed = {32229224},
UT = {WOS:000536132200017},
doi = {10.1016/j.bbagen.2020.129606},
url = {https://juser.fz-juelich.de/record/889023},
}