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Title: Crossover from picosecond collective to single particle dynamics defines the mechanism of lateral lipid diffusion

Journal Article · · Biochimica et Biophysica Acta. Biomembranes

It has been widely accepted that the thermally excited motions of the molecules in a cell membrane is the prerequisite for a cell to carry its biological functions. On the other hand, the detailed mapping of the ultrafast picosecond single-molecule and the collective lipid dynamics in a cell membrane remains rather elusive. Here, we report all-atom molecular dynamics simulations of a 1,2-dipalmitoyl-sn-glycero-3-phosphocholine bilayer over a wide range of temperature. We elucidate a molecular mechanism underlying the lateral lipid diffusion in a cell membrane across the gel, rippled, and liquid phases using an analysis of the longitudinal and transverse current correlation spectra, the velocity auto-correlation functions, and the molecules mean square displacements. The molecular mechanism is based on the anomalous ultrafast vibrational properties of lipid molecules at the viscous-to-elastic crossover. The macroscopic lipid diffusion coefficients predicted by the proposed diffusion model are in a good agreement with experimentally observed values. Moreover, we unveil the role of water confined at the water-lipid interface in triggering collective vibrations in a lipid bilayer.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0012704
OSTI ID:
1572744
Alternate ID(s):
OSTI ID: 1482560
Report Number(s):
BNL-209459-2018-JAAM; S0005273618301998; PII: S0005273618301998
Journal Information:
Biochimica et Biophysica Acta. Biomembranes, Journal Name: Biochimica et Biophysica Acta. Biomembranes Vol. 1860 Journal Issue: 11; ISSN 0005-2736
Publisher:
ElsevierCopyright Statement
Country of Publication:
Netherlands
Language:
English
Citation Metrics:
Cited by: 16 works
Citation information provided by
Web of Science

References (45)

Collective Dynamics in Fully Hydrated Phospholipid Bilayers Studied by Inelastic X-Ray Scattering journal January 2001
Diffusion of Cholesterol and Its Precursors in Lipid Membranes Studied by 1H Pulsed Field Gradient Magic Angle Spinning NMR journal October 2005
Lipid lateral diffusion in bilayers with phosphatidylcholine, sphingomyelin and cholesterol journal June 2006
Lateral Diffusion Coefficients of Separate Lipid Species in a Ternary Raft-Forming Bilayer: A Pfg-NMR Multinuclear Study journal July 2005
Experimental evidence against the applicability of the Saffman-Delbrück model to the translational diffusion of lipids in phosphatidylcholine bilayer membranes journal February 1983
Lateral diffusion in an archipelago. The effect of mobile obstacles journal December 1987
The State of Lipid Rafts: From Model Membranes to Cells journal June 2003
Nontrivial Behavior of Water in the Vicinity and Inside Lipid Bilayers As Probed by Molecular Dynamics Simulations journal September 2013
Intermonolayer Friction and Surface Shear Viscosity of Lipid Bilayer Membranes journal July 2007
Mixing of Longitudinal and Transverse Dynamics in Liquid Water journal September 1997
Coupled Diffusion in Lipid Bilayers upon Close Approach journal January 2015
Lateral Diffusion in Lipid Membranes through Collective Flows journal January 2008
Unified phonon-based approach to the thermodynamics of solid, liquid and gas states journal December 2015
Lipid Rafts As a Membrane-Organizing Principle journal December 2009
Lateral diffusion in the liquid phases of dimyristoylphosphatidylcholine/cholesterol lipid bilayers: a free volume analysis journal July 1992
Lipid rafts: at a crossroad between cell biology and physics journal January 2007
RNA Catalysis in Model Protocell Vesicles journal September 2005
Membrane Transport in Primitive Cells journal April 2010
A comparison of DMPC- and DLPE-based lipid bilayers journal April 1994
Viruses budding from either the apical or the basolateral plasma membrane domain of MDCK cells have unique phospholipid compositions. journal July 1982
Structural and functional properties of hydration and confined water in membrane interfaces journal December 2008
Probing Intermolecular Interactions in Phospholipid Bilayers by Far-Infrared Spectroscopy journal February 2017
Anomalous Nanoscale Optoacoustic Phonon Mixing in Nematic Mesogens journal April 2018
Template-directed synthesis of a genetic polymer in a model protocell journal June 2008
Lipid lateral diffusion and membrane heterogeneity journal January 2009
Thermally triggered phononic gaps in liquids at THz scale journal January 2016
Collective Dynamics of Lipid Membranes Studied by Inelastic Neutron Scattering journal September 2004
Terasonic Excitations in 2D Gold Nanoparticle Arrays in a Water Matrix as Revealed by Atomistic Simulations journal August 2016
The phonon theory of liquid thermodynamics journal May 2012
Molecular dynamics simulation of short-wavelength collective dynamics of phospholipid membranes journal May 2014
Functional rafts in cell membranes journal June 1997
Emergent Optical Phononic Modes upon Nanoscale Mesogenic Phase Transitions journal May 2017
SINGLE-PARTICLE TRACKING:Applications to Membrane Dynamics journal June 1997
Molecular Mechanism of Long-Range Diffusion in Phospholipid Membranes Studied by Quasielastic Neutron Scattering journal March 2010
Translational diffusion of lipids in liquid crystalline phase phosphatidylcholine multibilayers. A comparison of experiment with theory journal January 1985
Size dependence of the translational diffusion of large integral membrane proteins in liquid-crystalline phase lipid bilayers. A study using fluorescence recovery after photobleaching journal October 1982
Lateral diffusion in phospholipid multibilayers measured by fluorescence recovery after photobleaching journal August 1977
Head group-water interactions in lipid bilayers: a comparison between DMPC- and DLPE-based lipid bilayers journal May 1993
On two-dimensional passive random walk in lipid bilayers and fluid pathways in biomembranes journal September 1979
Revealing the mechanism of passive transport in lipid bilayers via phonon-mediated nanometre-scale density fluctuations journal May 2016
Collective Chain Dynamics in Lipid Bilayers by Inelastic X-Ray Scattering journal June 2003
Revealing the Mechanism of the Viscous-to-Elastic Crossover in Liquids journal July 2015
Symmetry breaking gives rise to energy spectra of three states of matter journal September 2013
A molecular-dynamics study of lipid bilayers: Effects of the hydrocarbon chain length on permeability journal November 2005
Lateral diffusion of lipids and proteins in bilayer membranes journal September 1984

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