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Free Chlorine and Peroxynitrite Alter the Capsid Structure of Human Norovirus GII.4 and Its Capacity to Bind Histo-Blood Group Antigens

2021

Human noroviruses (HuNoVs) are one of the leading causes of acute gastroenteritis worldwide. HuNoVs are frequently detected in water and foodstuffs. Free chlorine and peroxynitrite (ONOO−) are two oxidants commonly encountered by HuNoVs in humans or in the environment during their natural life cycle. In this study, we defined the effects of these two oxidants on GII.4 HuNoVs and GII.4 virus-like particles (VLPs). The impact on the capsid structure, the major capsid protein VP1 and the ability of the viral capsid to bind to histo-blood group antigens (HBGAs) following oxidative treatments were analyzed. HBGAs are attachment factors that promote HuNoV infection in human hosts. Overall, our re…

Microbiology (medical)viral proteinViral protein[SDV]Life Sciences [q-bio]viruseslcsh:QR1-502noroviruschemistry.chemical_elementvirus-like particlesmedicine.disease_causeMicrobiologylcsh:MicrobiologyperoxynitriteMicrobiologyBlood group antigens03 medical and health scienceschemistry.chemical_compoundAntigenmedicineChlorineOriginal Research030304 developmental biologyNorovirus GII0303 health sciences030306 microbiologyChemistryvirus diseasesfree chlorinebiochemical phenomena metabolism and nutrition3. Good healthCapsid[SDV.MP.VIR]Life Sciences [q-bio]/Microbiology and Parasitology/VirologyNorovirushisto-blood group antigensPeroxynitriteFrontiers in Microbiology
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