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Membrane Composition Modulates Fusion by Altering Membrane Properties and Fusion Peptide Structure

Authors
  • Meher, Geetanjali1
  • Chakraborty, Hirak1
  • 1 Sambalpur University, Jyoti Vihar, Burla, Odisha, 768 019, India , Burla (India)
Type
Published Article
Journal
The Journal of Membrane Biology
Publisher
Springer-Verlag
Publication Date
Apr 22, 2019
Volume
252
Issue
4-5
Pages
261–272
Identifiers
DOI: 10.1007/s00232-019-00064-7
Source
Springer Nature
Keywords
License
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Abstract

Membrane fusion, one of the most essential processes in the life of eukaryotes, occurs when two separate lipid bilayers merge into a continuous bilayer and internal contents of two separated membranes mingle. There is a certain class of proteins that assist the binding of the viral envelope to the target host cell and catalyzing fusion. All class I viral fusion proteins contain a highly conserved 20–25 amino-acid amphipathic peptide at the N-terminus, which is essential for fusion activity and is termed as the ‘fusion peptide’. It has been shown that insertion of fusion peptides into the host membrane and the perturbation in the membrane generated thereby is crucial for membrane fusion. Significant efforts have been given in the last couple of decades to understand the lipid-dependence of structure and function of the fusion peptide in membranes to understand the role of lipid compositions in membrane fusion. In addition, the lipid compositions further change the membrane physical properties and alter the mechanism and extent of membrane fusion. Therefore, lipid compositions modulate membrane fusion by changing membrane physical properties and altering structure of the fusion peptide.

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