The intracellular proteome of African swine fever virus

Keßler, Catharina GND; Forth, Jan Hendrik GND; Keil, Günther M. GND; Mettenleiter, Thomas C. GND; Blome, Sandra GND; Karger, Axel GND

African swine fever (ASF) is a viral disease that affects members of the Suidae family such as African bush pigs, warthogs, but also domestic pigs, and wild boar. It is transmitted by direct contact of naïve with infected animals, by soft ticks of the Ornithodoros genus, or indirectly by movement of infected animals, improper disposal of contaminated animal products or other sources related to human activity. The recent spread of ASF into Eastern and Central European countries is currently threatening the European pig industry. The situation is aggravated as to-date no efficient vaccine is available. African swine fever virus (ASFV) is a large enveloped ds DNA-virus encoding at least 150 open reading frames. Many of the deduced gene products have not been described, less functionally characterized. We have analysed ASFV protein expression in three susceptible mammalian cell lines representing a susceptible host (wild boar) and two non-susceptible species (human and green monkey) by mass spectrometry and provide first evidence for the expression of 23 so far uncharacterized ASFV ORFs. Expression levels of several newly identified ASFV proteins were remarkably high indicating importance in the viral replication cycle. Moreover, expression profiles of ASFV proteins in the three cell lines differed markedly.

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Keßler, Catharina / Forth, Jan / Keil, Günther / et al: The intracellular proteome of African swine fever virus. 2018.

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