Results 41 to 50 of about 229,223 (348)

Alcohol Interactions with Lipid Bilayers [PDF]

open access: yesMolecules, 2017
We investigate the structural changes to lipid membrane that ensue from the addition of aliphatic alcohols with various alkyl tail lengths. Small angle neutron diffraction from flat lipid bilayers that are hydrated through water vapor has been employed to eliminate possible artefacts of the membrane curvature and the alcohol’s membrane-water ...
Kondela, T.   +5 more
openaire   +5 more sources

Physical and Chemical Interplay Between the Membrane and a Prototypical Potassium Channel Reconstituted on a Lipid Bilayer Platform

open access: yesFrontiers in Molecular Neuroscience, 2021
Once membrane potential changes or ligand binding activates the ion channel, the activity of the channel is finely modulated by the fluctuating membrane environment, involving local lipid composition and membrane tension.
Masayuki Iwamoto, Shigetoshi Oiki
doaj   +1 more source

Multiscale compression-induced restructuring of stacked lipid bilayers: From buckling delamination to molecular packing.

open access: yesPLoS ONE, 2022
Lipid membranes in nature adapt and reconfigure to changes in composition, temperature, humidity, and mechanics. For instance, the oscillating mechanical forces on lung cells and alveoli influence membrane synthesis and structure during breathing ...
Marilyn Porras-Gómez   +7 more
doaj   +2 more sources

Physical Properties and Reactivity of Microdomains in Phosphatidylinositol-Containing Supported Lipid Bilayer

open access: yesMembranes, 2021
We characterized the size, distribution, and fluidity of microdomains in a lipid bilayer containing phosphatidylinositol (PI) and revealed their roles during the two-dimensional assembly of a membrane deformation protein (FBP17).
Toshinori Motegi   +4 more
doaj   +1 more source

Composition Fluctuations in Lipid Bilayers [PDF]

open access: yesBiophysical Journal, 2016
AbstractLipid bilayers constitute the basis of biological membranes. Understanding lipid mixing and phase behavior can provide important insights into membrane lateral organization (the “raft” hypothesis). Here we investigate model lipid bilayers below and above their miscibility transition temperatures.
Baoukina, Svetlana   +2 more
openaire   +2 more sources

Interaction of the Antimicrobial Peptide Aurein 1.2 and Charged Lipid Bilayer

open access: yesScientific Reports, 2017
Aurein 1.2 is a potent antimicrobial peptide secreted by frog Litoria aurea. As a short membrane-active peptide with only 13 amino acids in sequence, it has been found to be residing on the surface of lipid bilayer and permeabilizing bacterial membranes ...
Durgesh K. Rai, Shuo Qian
doaj   +1 more source

Effect of charged lipids on the ionization behavior of glutamic acid containing transmembrane helices [PDF]

open access: yes, 2020
Transmembrane proteins make up critical components of living cells. Protein function can be greatly impacted by the charged state of its respective components, the side chains of amino acid residues.
Nunn, Brooke
core   +2 more sources

Single-channel measurements of an N-acetylneuraminic acid-inducible outer membrane channel in Escherichia coli [PDF]

open access: yes, 2012
NanC is an Escherichia coli outer membrane protein involved in sialic acid (Neu5Ac, i.e., N-acetylneuraminic acid) uptake. Expression of the NanC gene is induced and controlled by Neu5Ac. The transport mechanism of Neu5Ac is not known.
Eisenberg, Bob   +4 more
core   +1 more source

Cholesterol Perturbs Lipid Bilayers Nonuniversally [PDF]

open access: yesPhysical Review Letters, 2008
Cholesterol is well known to modulate the physical properties of biomembranes. Using modern x-ray scattering methods, we have studied the effects of cholesterol on the bending modulus KC, the thickness DHH, and the orientational order parameter Sxray of lipid bilayers.
Pan, Jianjun   +3 more
openaire   +3 more sources

Lipid/water interface of galactolipid bilayers in different lyotropic liquid-crystalline phases

open access: yesFrontiers in Molecular Biosciences, 2022
In this study, carried out using computational methods, the organisation of the lipid/water interface of bilayers composed of galactolipids with both α-linolenoyl acyl chains is analysed and compared in three different lyotropic liquid-crystalline phases.
Jakub Hryc   +3 more
doaj   +1 more source

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