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Acylation of virol. spike glycoproteins: A feature of enveloped RNA viruses

Identifieur interne : 000789 ( Istex/Corpus ); précédent : 000788; suivant : 000790

Acylation of virol. spike glycoproteins: A feature of enveloped RNA viruses

Auteurs : Michael F. G. Schmidt

Source :

RBID : ISTEX:5C9CB2299973B9C1B9AD27699F9233170274C864

English descriptors

Abstract

Abstract: The covalent attachment of fatty acids to the glycoproteins of orthomyxo-, paramyxo, alpha-, and coronavirus was studied. All enveloped viruses analyzed afford covalently bound fatty acid in at least one species of their spike glycoproteins. No internal components of the viruses studied including the hydrophobic M proteins of myxo- and rhabdoviruses contained fatty acid. Analysis of myxovirus particles devoid of the exposed portions of their spikes revealed that fatty acids are linked to the hydrophobic tail fragment of the glycoprotein which is associated with the viral lipid bilayer. With influenza virus hemagglutinin the fatty acid attachment site could be located at the cyanogen bromide peptide of the small subunit (HA2) which contains the membrane-embedded region of the polypeptide. The binding of fatty acids to viral glycoproteins occurs in a wide range of host cells including mammalian, avian, and insect cells.

Url:
DOI: 10.1016/0042-6822(82)90424-X

Links to Exploration step

ISTEX:5C9CB2299973B9C1B9AD27699F9233170274C864

Le document en format XML

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<namePart type="given">Michael F.G.</namePart>
<namePart type="family">Schmidt</namePart>
<affiliation>Institut fur Virologie, Justus-Liebig-Universitkt Giessen, 6300 Giessen, West Germany</affiliation>
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<abstract lang="en">Abstract: The covalent attachment of fatty acids to the glycoproteins of orthomyxo-, paramyxo, alpha-, and coronavirus was studied. All enveloped viruses analyzed afford covalently bound fatty acid in at least one species of their spike glycoproteins. No internal components of the viruses studied including the hydrophobic M proteins of myxo- and rhabdoviruses contained fatty acid. Analysis of myxovirus particles devoid of the exposed portions of their spikes revealed that fatty acids are linked to the hydrophobic tail fragment of the glycoprotein which is associated with the viral lipid bilayer. With influenza virus hemagglutinin the fatty acid attachment site could be located at the cyanogen bromide peptide of the small subunit (HA2) which contains the membrane-embedded region of the polypeptide. The binding of fatty acids to viral glycoproteins occurs in a wide range of host cells including mammalian, avian, and insect cells.</abstract>
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<identifier type="ISSN">0042-6822</identifier>
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<identifier type="DOI">10.1016/0042-6822(82)90424-X</identifier>
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