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JOURNAL ARTICLE
RESEARCH SUPPORT, NON-U.S. GOV'T
S-acylation of influenza virus proteins: Are enzymes for fatty acid attachment promising drug targets?
Vaccine 2015 December 9
Covalent attachment of saturated fatty acids (palmitate and stearate) to hemagglutinin (HA) of influenza virus is a protein modification essential for viral replication. The enzymes catalysing acylation of viral proteins have not been identified, but likely candidates that acylate cellular substrates are members of a protein family that contain a DHHC (Asp-His-His-Cys) cysteine-rich domain. Since 23 DHHC-proteins with distinct, only partly overlapping substrate specificities are present in humans, only a few of them might acylate HA in airway cells of the lung. We argue here that these DHHC-proteins might be promising drug targets since their blockade should result in suppression of viral replication, while acylation of cellular proteins will not be (or very little) compromised.
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