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Title: Molecular Dynamics Investigation of Lipid-Specific Interactions with a Fusion Peptide

Journal Article · · Biomolecules

The HIV-1 fusion peptide, which is a short hydrophobic peptide from the gp41 coat glycoprotein that participates in the infection of a cell, interacts with model lipid bilayer membranes in a concentration-dependent manner. The interaction of the peptide with the bilayer also strongly depends on the lipid composition. Here, molecular dynamics simulations were performed to investigate lipid-specific interactions that arise shortly after the binding of a less-fusogenic variant of the HIV-1 fusion peptide to a lipid bilayer composed of a mixture of dimyristoyl phosphatidylcholine and dimyristoyl phosphatidylglycerol. The impact of peptide concentration was also studied. An improved understanding was gained of the lipid-specific interactions experienced by the FP. New insight was also gained into how the peptide concentration changes these interactions.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF); USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
2315042
Alternate ID(s):
OSTI ID: 2317756
Journal Information:
Biomolecules, Vol. 14, Issue 3; ISSN 2218-273X
Publisher:
MDPICopyright Statement
Country of Publication:
United States
Language:
English

References (58)

Structure and immune recognition of trimeric pre-fusion HIV-1 Env journal October 2014
Open and closed structures reveal allostery and pliability in the HIV-1 envelope spike journal July 2017
Cholesterol Modulates Membrane Properties and the Interaction of gp41 Fusion Peptide To Promote Membrane Fusion journal July 2019
Investigation of the Impact of Lipid Acyl Chain Saturation on Fusion Peptide Interactions with Lipid Bilayers journal February 2023
Another Piece of the Membrane Puzzle: Extending Slipids Further journal October 2012
Molecular dynamics simulation of HIV-1 fusion domain-membrane complexes: Insight into the N-terminal gp41 fusion mechanism journal August 2012
Comparative molecular dynamics simulations of the antimicrobial peptide CM15 in model lipid bilayers journal May 2012
Molecular Mechanism of Peptide-Induced Pores in Membranes journal May 2004
I-TASSER: a unified platform for automated protein structure and function prediction journal March 2010
Spectroscopic and Computational Study of Melittin, Cecropin A, and the Hybrid Peptide CM15 journal July 2012
Improved side-chain torsion potentials for the Amber ff99SB protein force field journal January 2010
Phospholipid interactions of synthetic peptides representing the N-terminus of HIV gp41 journal August 1990
Phospholipid Component Volumes: Determination and Application to Bilayer Structure Calculations journal August 1998
Crystal Structure of a Soluble Cleaved HIV-1 Envelope Trimer journal October 2013
Characterization of the fusion domain of the human immunodeficiency virus type 1 envelope glycoprotein gp41. journal June 1990
GROMACS: High performance molecular simulations through multi-level parallelism from laptops to supercomputers journal September 2015
Membrane curvature and surface area per lipid affect the conformation and oligomeric state of HIV-1 fusion peptide: A combined FTIR and MD simulation study journal April 2008
HIV gp41 Fusion Peptide Increases Membrane Ordering in a Cholesterol-Dependent Fashion journal January 2014
Magainin 2 and PGLa in Bacterial Membrane Mimics I: Peptide-Peptide and Lipid-Peptide Interactions journal November 2019
Optimization of Slipids Force Field Parameters Describing Headgroups of Phospholipids journal September 2020
Update of the CHARMM All-Atom Additive Force Field for Lipids: Validation on Six Lipid Types journal June 2010
I-TASSER server for protein 3D structure prediction journal January 2008
A unified formulation of the constant temperature molecular dynamics methods journal July 1984
freud: A software suite for high throughput analysis of particle simulation data journal September 2020
Interaction of the HIV-1 Fusion Peptide with Phospholipid Vesicles: Different Structural Requirements for Fusion and Leakage journal March 1994
Conformational Plasticity in the HIV-1 Fusion Peptide Facilitates Recognition by Broadly Neutralizing Antibodies journal June 2019
HIV Fusion Peptide and Its Cross-Linked Oligomers: Efficient Syntheses, Significance of the Trimer in Fusion Activity, Correlation of β Strand Conformation with Membrane Cholesterol, and Proximity to Lipid Headgroups journal January 2009
Membrane interactions of the synthetic N-terminal peptide of HIV-1 gp41 and its structural analogs journal April 1999
Fusion Activity of HIV gp41 Fusion Domain Is Related to Its Secondary Structure and Depth of Membrane Insertion in a Cholesterol-Dependent Fashion journal April 2012
Permeabilization and fusion of uncharged lipid vesicles induced by the HIV-1 fusion peptide adopting an extended conformation: dose and sequence effects journal October 1997
A small-angle neutron scattering study of the physical mechanism that drives the action of a viral fusion peptide journal January 2021
Direct measurement of the interaction between phosphatidylglycerol bilayers in aqueous electrolyte solutions journal November 1986
Canonical sampling through velocity rescaling journal January 2007
Particle mesh Ewald: An N ⋅log( N ) method for Ewald sums in large systems journal June 1993
LiPyphilic: A Python Toolkit for the Analysis of Lipid Membrane Simulations journal August 2021
MDAnalysis: A Python Package for the Rapid Analysis of Molecular Dynamics Simulations conference January 2016
Fluid phase lipid areas and bilayer thicknesses of commonly used phosphatidylcholines as a function of temperature journal November 2011
Dictionary of protein secondary structure: Pattern recognition of hydrogen-bonded and geometrical features journal December 1983
Changes in lipid bilayer structure caused by the helix-to-sheet transition of an HIV-1 gp41 fusion peptide derivative journal March 2017
A mutation in the human immunodeficiency virus type 1 transmembrane glycoprotein gp41 dominantly interferes with fusion and infectivity. journal January 1992
The helix-to-sheet transition of an HIV-1 fusion peptide derivative changes the mechanical properties of lipid bilayer membranes journal March 2019
Polymorphic transitions in single crystals: A new molecular dynamics method journal December 1981
A series of PDB-related databanks for everyday needs journal October 2014
Structure of HIV-1 gp41 with its membrane anchors targeted by neutralizing antibodies journal April 2021
Derivation and Systematic Validation of a Refined All-Atom Force Field for Phosphatidylcholine Lipids journal March 2012
Fusion peptide of HIV-1 as a site of vulnerability to neutralizing antibody journal May 2016
A syncytia assay for human immunodeficiency virus type I(H IV-I) envelope protein and its use in studying HIV-I mutations journal June 1989
Membrane structure of the human immunodeficiency virus gp41 fusion peptide by molecular dynamics simulation journal January 2003
Canonical dynamics: Equilibrium phase-space distributions journal March 1985
MDAnalysis: A toolkit for the analysis of molecular dynamics simulations journal April 2011
Subunit organization of the membrane-bound HIV-1 envelope glycoprotein trimer journal August 2012
Lipid-specific interactions determine the organization and dynamics of membrane-active peptide melittin journal January 2020
Membrane Structure of the Human Immunodeficiency Virus gp41 Fusion Domain by Molecular Dynamics Simulation journal July 2002
An Extension and Further Validation of an All-Atomistic Force Field for Biological Membranes journal July 2012
Molecular structures of fluid phase phosphatidylglycerol bilayers as determined by small angle neutron and X-ray scattering journal September 2012
Molecular mechanism of antimicrobial peptides: The origin of cooperativity journal September 2006
The Role of Human Immunodeficiency Virus Type 1 Envelope Glycoproteins in Virus Infection journal October 1995
Internal Dynamics of the Homotrimeric HIV-1 Viral Coat Protein gp41 on Multiple Time Scales journal February 2013