Identification of Orbivirus Non-Structural Protein 5 (NS5), Its Role and Interaction with RNA/DNA in Infected Cells - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue International Journal of Molecular Sciences Année : 2023

Identification of Orbivirus Non-Structural Protein 5 (NS5), Its Role and Interaction with RNA/DNA in Infected Cells

Fauziah Mohd Jaafar
Baptiste Monsion
Peter Mertens
Houssam Attoui
Connectez-vous pour contacter l'auteur

Résumé

Bioinformatic analyses have predicted that orbiviruses encode an additional, small non-structural protein (NS5) from a secondary open reading frame on genome segment 10. However, this protein has not previously been detected in infected mammalian or insect cells. NS5-specific antibodies were generated in mice and were used to identify NS5 synthesised in orbivirus-infected BSR cells or cells transfected with NS5 expression plasmids. Confocal microscopy shows that although NS5 accumulates in the nucleus, particularly in the nucleolus, which becomes disrupted, it also appears in the cell cytoplasm, co-localising with mitochondria. NS5 helps to prevent the degradation of ribosomal RNAs during infection and reduces host-cell protein synthesis However, it helps to extend cell viability by supporting viral protein synthesis and virus replication. Pulldown studies showed that NS5 binds to ssRNAs and supercoiled DNAs and demonstrates interactions with ZBP1, suggesting that it modulates host-cell responses.
Fichier principal
Vignette du fichier
ijms-24-06845-2.pdf (11.71 Mo) Télécharger le fichier
NS5 Movie 1.avi (8.23 Mo) Télécharger le fichier
NS5 Movie 2.avi (129.44 Mo) Télécharger le fichier
NS5 Movie 3.avi (7.74 Mo) Télécharger le fichier
NS5 paper supplementary data after conversion.pdf (6.31 Mo) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte
Licence : CC BY - Paternité
Licence : CC BY - Paternité
Licence : CC BY - Paternité
Licence : CC BY - Paternité
Licence : CC BY - Paternité

Dates et versions

hal-04138568 , version 1 (26-06-2023)

Licence

Paternité

Identifiants

Citer

Fauziah Mohd Jaafar, Baptiste Monsion, Peter Mertens, Houssam Attoui. Identification of Orbivirus Non-Structural Protein 5 (NS5), Its Role and Interaction with RNA/DNA in Infected Cells. International Journal of Molecular Sciences, 2023, 24 (7), pp.6845. ⟨10.3390/ijms24076845⟩. ⟨hal-04138568⟩
21 Consultations
5 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More