Norovirus GII.3
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA1294861 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Norovirus genome sequencing and assembly of GII isolates associated with a 2022 oyster outbreak.
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Project description:The goal of this project was to evaluate intestinal epithelial responses to GII.4 human norovirus infection.
2020-09-29 | GSE150918 | GEO
Project description:Norovirus GII.4 isolate:Minerva_2006 Raw sequence reads
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Project description:Genomic Analysis of Human Noroviruses Using Hybrid Illumina-Nanopore Data
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Project description:Noroviruses are non-enveloped (+) single stranded RNA viruses of the Caliciviridae family that cause an estimated 20 % of gastroenteritis cases worldwide . The virus possesses an icosahedral capsid, build by the two structural proteins VP1 and VP2. Noroviruses of genogroup II, especially GII.4, dominated in the majorities of outbreaks in the last two decades. In the last years, a novel GII.17 strain has also emerged in Asia. The major capsid protein VP1 builds dimers that are divided into the inner shell (S) domain and the outward-facing protruding (P) domain. The P domain is further divided into P1 and P2 subdomains, of which P2 is essential for host immune response and binds to histo blood-group antigens (HBGAs) for cell attachment in a strain-dependent manner, but the exact mechanism of cell attachment and entry remains unclear. Recently, a spontaneous deamidation of N373 with subsequent formation of an iso-aspartate (iD) was identified in GII.4 Saga P dimers that strongly attenuates glycan binding. This deamidation appears to be site specific and occurs in GII.4 MI001 P dimers as well, whereas it is absent in GII.10 Vietnam 026 and GII.17 Kawasaki 308 P dimers, which carry an Asp at the equivalent position. Given their high structural similarity with at the same time strain-dependent glycan binding behavior, we wanted to study if glycan binding induces different dynamic changes in P dimers of different strains using Hydrogen-Deuterium Exchange Mass Spectrometry (HDX-MS). Furthermore, we wanted to examine the structural effects of fucose binding to a mixture of wildtype and deamidated GII.4 MI001 and GII.4 Saga P dimers, to get more insights about the dynamic changes induced by N373 deamidation. Our results suggest identical glycan binding behavior of the almost identical GII.4 Saga and GII.4 MI001 strains, but reveal different glycan induced dynamics in GII.17 Kawasaki 308 and GII.10 Vietnam 026. Furthermore, all strains apart from GII.4 Saga form a second P domain species that is highly protected from HDX . In mixtures of wildtype and N373 deamidated GII.4 P dimers, fucose binding leads to different structural dynamics than in pure wildtype, indicating that the deamidated species could have a biological function in vivo.
2021-04-08 | PXD019884 | Pride
Project description:The goal of this study was to evaluate the transcriptional response of 4 human duodenal enteroid lines on monolayers to norovirus infections (GII.4). Enteroids were plated as monolayers in Intesticult (Stem Cell Technologies) proliferation medium. After 1 day of cell growth as a monolayer, the proliferation medium was changed with differentiation medium for 5 days. Five-day-differentiated monolayers were washed and were either mock-infected or inoculated with human norovirus supplemented with 500 μM glycochenodeoxycholic acid (GCDCA), for 1 to 2 h at 37°C. Total RNA was extracted using the Qiagen RNeasy kit and paired-end Illumina sequencing was performed.
2021-10-01 | GSE183223 | GEO
Project description:Transcriptional responses of GII.4 human norovirus infection in jejunal human intestinal enteroids
| PRJNA634086 | ENA