Project description:The mouse hepatitis virus (MHV) genomic RNA has a poly(A) tail required for replication. Here we investigated the presence of terminal poly(A) tail uridylation and guanylation in the virion RNA. After isolating the viral RNA followed by sequencing, we found a mean poly(A) tail of 66 nucleotides long with a peak of terminal uridylation on tails 55 to 66 nucleotides long.
2023-03-23 | GSE200415 | GEO
Project description:Direct RNA sequencing of MHV-WT
Project description:Murine gammaherpesvirus 68 (MHV-68) is closely related to Epstein-Barr virus (EBV) and Kaposi’s sarcoma-associated herpesvirus (KSHV) and provides a small animal model to study the pathogenesis of gammaherpesvirus (γHV) infections. To completely explore the potential of the MHV-68 system for the investigation of gHV miRNAs, it would be desirable to know the number and expression patterns of all miRNAs encoded by MHV-68. By using small RNA deep sequencing, we systematically investigated the MHV-68 miRNA expression profiles in both lytically and persistently infected cells. In addition to the known nine MHV-68 miRNAs, we identified six novel MHV-68 miRNA genes and analyzed the expression levels of all MHV-68 miRNAs. Furthermore, we also characterized the cellular miRNA expression signatures in MHV-68 infected versus non-infected NIH3T3 fibroblasts and in TPA-treated versus non-treated S11 cells. We found that mmu-mir-15b and mmu-mir-16 are highly upregulated upon MHV-68 infection of NIH3T3 cells, indicating a potential role of cellular miRNAs during MHV-68 infection. Our data will aid to fully explore the functions of gHV miRNAs.
Project description:Ribosome profiling (RiboSeq) (maps positions of translating ribosomes on the transcriptome) and RNASeq (quantifies the transcriptome) analysis of murine 17 clone 1 (17Cl-1) cells infected with Murine coronavirus strain A59 (MHV-A59). Samples comprise 1 and 8 h mocks, 1, 2.5, 5 and 8 h post infection timecourse, for each of RiboSeq with cycloheximide (CHX), RiboSeq with harringtonine (HAR), and RNASeq, performed in duplicate (6 x 3 x 2 libraries); RiboSeq CHX, RiboSeq HAR and RNASeq at 1 h post infection for high multiplicity of infection (3 libraries); and 1 \long-read\ library for 5 h post infection RiboSeq CHX to test for larger-than-normal ribosome footprints.
Project description:Murine gammaherpesvirus 68 (MHV-68) is closely related to Epstein-Barr virus (EBV) and KaposiM-bM-^@M-^Ys sarcoma-associated herpesvirus (KSHV) and provides a small animal model to study the pathogenesis of gammaherpesvirus (M-NM-3HV) infections. To completely explore the potential of the MHV-68 system for the investigation of gHV miRNAs, it would be desirable to know the number and expression patterns of all miRNAs encoded by MHV-68. By using small RNA deep sequencing, we systematically investigated the MHV-68 miRNA expression profiles in both lytically and persistently infected cells. In addition to the known nine MHV-68 miRNAs, we identified six novel MHV-68 miRNA genes and analyzed the expression levels of all MHV-68 miRNAs. Furthermore, we also characterized the cellular miRNA expression signatures in MHV-68 infected versus non-infected NIH3T3 fibroblasts and in TPA-treated versus non-treated S11 cells. We found that mmu-mir-15b and mmu-mir-16 are highly upregulated upon MHV-68 infection of NIH3T3 cells, indicating a potential role of cellular miRNAs during MHV-68 infection. Our data will aid to fully explore the functions of gHV miRNAs. A mouse fibroblast cell line infected with/without MHV-68 and a MHV-68 infected mouse B lymphoma cell line treated with/without TPA (4 samples in total) were examined.
Project description:In this study we explored the antiviral gene expression induced in the CNS of MHV-infected mice, by performing whole-genome expression profiling. Three different mouse strains (BALB/c, 129SvEv and 129SvEv IFNAR-/- mice), differing in their susceptibility to infection with MHV, were used.