The alloherpesviral counterparts of interleukin 10 in European eel and common carp.

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Viral interleukin 10 (IL-10) like open reading frames have been identified in several pox- and herpesviruses, including the fish herpesviruses Anguillid herpesvirus 1 (AngHV-1) and Cyprinid herpesvirus 3 (CyHV-3). European eel (Anguilla anguilla) IL-10 was sequenced, in order to compare European eel and common carp (Cyprinus carpio) IL-10 with their alloherpesviral counterparts. Homology between the virus and host IL-10 amino acid sequences is low, which is confirmed by phylogenetic analysis. However, the three dimensional structures of the fish and alloherpesviral IL-10 proteins as predicted by modeling are highly similar to human IL-10. Closely related AngHV-1 and CyHV-3 are expected to have obtained their viral IL-10 genes independently in the course of coexistence with their respective hosts. The presence and structural conservation of these alloherpesviral IL-10 genes suggest that they might play an important role in the evolution of pathogenesis
Original languageEnglish
Pages (from-to)1211-1217
JournalFish and Shellfish Immunology
Issue number6
Publication statusPublished - 2011


  • herpesviral hematopoietic necrosis
  • dicentrarchus-labrax l.
  • crystal-structure
  • expression analysis
  • immune evasion
  • cellular interleukin-10
  • viral interleukin-10
  • anguilla-anguilla
  • interferon-gamma
  • koi herpesvirus

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