Fletta eftir höfundi "Jónsson, Stefán Ragnar"

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Iceland as Stepping Stone for Spread of Highly Pathogenic Avian Influenza Virus between Europe and North America

Günther, Anne; Krone, Oliver; Svansson, Vilhjalmur; Pohlmann, Anne; King, Jacqueline; Hallgrimsson, Gunnar Thor; Skarphéðinsson, Kristinn Haukur; Sigurðardóttir, Heiða; Jónsson, Stefán Ragnar; Beer, Martin; Brugger, Brigitte; Harder, Timm (2022-12-01)

Highly pathogenic avian influenza viruses (HPAIVs) of hemagglutinin type H5 and clade 2.3.4.4b have widely spread within the northern hemisphere since 2020 and threaten wild bird populations, as well as poultry production. We present phylogeographic ...
Maedi-visna virus Vif protein uses motifs distinct from HIV-1 Vif to bind zinc and cofactor required for A3 degradation : Maedi-visna virus Vif interactions with cellular factors

Knecht, Kirsten M; Hu, Yingxia; Rubene, Diana; Cook, Matthew; Ziegler, Samantha J; Jónsson, Stefán Ragnar; Xiong, Yong (2021)

The mammalian apolipoprotein B mRNA-editing enzyme catalytic polypeptide-like 3 (APOBEC3 or A3) family of cytidine deaminases restrict viral infections by mutating viral DNA and impeding reverse transcription. To overcome this antiviral activity, most ...

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