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Mass spectrometry analysis of influenza virus reassortant clones does not reveal an influence of other viral proteins on S-acylation of hemagglutinin

Mass spectrometry analysis of influenza virus reassortant clones does not reveal an influence of... Hemagglutinin (HA) of influenza virus is S-acylated with stearate at a transmembrane cysteine and with palmitate at two cytoplasmic cysteines. The amount of stearate varies from 35 (in avian strains) to 12% (in human strains), although the acylation region exhibits only minor or even no amino acid differences between HAs. To address whether matrix proteins and neuraminidase affect stearoylation of HA, we used mass spectrometry to analyze laboratory reassortants containing avian virus HA and the internal proteins from a human virus. Only minor fluctuations in the amount of stearate were observed, implying that other viral proteins do not affect acylation of HA. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Virology Springer Journals

Mass spectrometry analysis of influenza virus reassortant clones does not reveal an influence of other viral proteins on S-acylation of hemagglutinin

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References (36)

Publisher
Springer Journals
Copyright
Copyright © 2013 by Springer-Verlag Wien
Subject
Biomedicine; Virology; Medical Microbiology; Infectious Diseases
ISSN
0304-8608
eISSN
1432-8798
DOI
10.1007/s00705-012-1510-9
pmid
23065113
Publisher site
See Article on Publisher Site

Abstract

Hemagglutinin (HA) of influenza virus is S-acylated with stearate at a transmembrane cysteine and with palmitate at two cytoplasmic cysteines. The amount of stearate varies from 35 (in avian strains) to 12% (in human strains), although the acylation region exhibits only minor or even no amino acid differences between HAs. To address whether matrix proteins and neuraminidase affect stearoylation of HA, we used mass spectrometry to analyze laboratory reassortants containing avian virus HA and the internal proteins from a human virus. Only minor fluctuations in the amount of stearate were observed, implying that other viral proteins do not affect acylation of HA.

Journal

Archives of VirologySpringer Journals

Published: Feb 1, 2013

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