Functional Significance of the Nuclear-Targeting and NTP-Binding Motifs of Semliki Forest Virus Nonstructural Protein nsP2
نویسندگان
چکیده
منابع مشابه
Phosphorylation site analysis of Semliki forest virus nonstructural protein 3.
Nonstructural protein 3 (Nsp3) is an essential subunit of the alphavirus RNA replication complex, although its specific function(s) has yet to be well defined. Previously, it has been shown that Semliki Forest virus Nsp3 (482 amino acids) is a phosphoprotein, and, in the present study, we have mapped its major phosphorylation sites. Mass spectrometric methods utilized included precursor ion sca...
متن کاملMutations in the nuclear localization signal of nsP2 influencing RNA synthesis, protein expression and cytotoxicity of Semliki Forest virus
The cytotoxicity of Semliki Forest virus (SFV) infection is caused partly by the non-structural protein nsP2, an essential component of the SFV replicase complex. Due to the presence of a nuclear localization signal (NLS), nsP2 also localizes in the nucleus of infected cells. The present study analysed recombinant SFV replicons and genomes with various deletions or substitutions in the NLS, or ...
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15 صفحه اولComplete nucleotide sequence of the nonstructural protein genes of Semliki Forest virus.
The nucleotide sequence coding for the nonstructural proteins of Semliki Forest virus has been determined from cDNA clones. The total length of this region is 7381 nucleotides, it contains an open reading frame starting at position 86 and ending at an UAA stop codon at position 7379-7381. This open reading frame codes for a 2431 amino acids long polyprotein, from which the individual nonstructu...
متن کاملSemliki Forest virus nonstructural protein 2 is involved in suppression of the type I interferon response.
The type I interferons (IFNs) are potent mediators of antiviral immunity, and many viruses have developed means to block their expression or their effects. Semliki Forest virus (SFV) infection induces rapid and profound silencing of host cell gene expression, a process believed to be important for the inhibition of the IFN response. In SFV-infected cells, a large proportion of the nonstructural...
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ژورنال
عنوان ژورنال: Virology
سال: 1996
ISSN: 0042-6822
DOI: 10.1006/viro.1996.0204