📄 Intracellular localization of the severe acute respiratory syndrome coronavirus nucleocapsid protein: Absence of nucleolar accumulation during infection and after expression as a recombinant protein in Vero cells

The nucleocapsid (N) protein of several members within the order Nidovirales localizes to the nucleolus during infection and after transfection of cells with N genes. However, confocal microscopy of N protein localization in Vero cells infected with the severe acute respiratory syndrome coronavirus (SARS-CoV) or transfected with the SARS-CoV N gene failed to show the presence of N in the nucleoplasm or nucleolus. Amino acids 369 to 389, which contain putative nuclear localization signal (NLS) and nucleolar localization signal motifs, failed to restore nuclear localization to an NLS-minus mutant Rev protein. These data indicate that nuclear localization is not a conserved property among all nidoviruses. Copyright © 2005, American Society for Microbiology.

keywords 🔗 severe acute (1373) 🔗 syndrome coronavirus (1074) 🔗 respiratory syndrome (2004) 🔗 acute respiratory (1734)

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