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Washington University in St. Louis

NK cell

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Omcp Mediated Cowpox Virulence And Its Dependence On The Immune Receptors Nkg2d And Fcrl5., Michel Muzi Sun May 2016

Omcp Mediated Cowpox Virulence And Its Dependence On The Immune Receptors Nkg2d And Fcrl5., Michel Muzi Sun

Arts & Sciences Electronic Theses and Dissertations

Viruses with large DNA genomes, such as cowpox virus, encode many open-reading frames involved in the modulation of the host immune system, facilitating escape from immune detection or downregulation of specific aspects of the host immune response. Investigation of virally-encoded immunoevasins has been instrumental in understanding host-pathogen interactions. Here, we focus on the cowpox virus immunoevasin Orthopoxvirus MHC Class I-like Protein (OMCP) and demonstrate for the first time that OMCP facilitates cowpox virus virulence in vivo. We have previously documented that OMCP binds the activating receptor NKG2D on NK cells as well as the orphan receptor FCRL5 on innate B …