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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Takacs, A. M. Das, T. Banerjee, A. K. |
| Description | Author Affiliation: Takacs AM ( Department of Molecular Biology, Cleveland Clinic Foundation, OH 44195.); |
| Abstract | Specific interaction between the nucleocapsid protein (N) and the phosphoprotein (P) of vesicular stomatitis virus (VSV), an important step in the life-cycle of the virus, was studied by using a two-hybrid system. Plasmids encoding P fused with the yeast GAL4 DNA-binding domain (pGALP) and N fused with the herpes simplex virus VP16 transactivating region (pVPN) were transfected into CHO cells along with a reporter plasmid encoding chloramphenicol acetyltransferase (CAT). The ability of N and P to associate in vivo was measured by activation of the CAT gene by the VP16 transactivating region. Transfection of plasmids pGALP and pVPN resulted in a high level of CAT activity, indicating that the N and P portions of the fusion proteins associated very strongly with each other. Progressive C-terminal deletions of the P protein revealed two regions that are important for association with the N protein: the N-terminal acidic domain and the C-terminal basic domain. Phosphorylation of P protein was not required for N-P association. Various deletions and mutations of the N protein revealed the C-terminal 5 amino acids (Val-Glu-Phe-Asp-Lys), in particular the amino acids Val-Glu-Phe, to be critical for N association with P. This two-hybrid system can be used in other viral systems to study the interaction between proteins involved in transcription and replication. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 21 |
| Volume Number | 90 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 1993-12-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Capsid Biosynthesis Genome, Viral Phosphoproteins Vesicular Stomatitis Indiana Virus Genetics Metabolism Viral Core Proteins Viral Proteins Amino Acid Sequence Animals CHO Cells Isolation & Purification Chloramphenicol O-Acetyltransferase Cricetinae Molecular Sequence Data Mutagenesis, Site-Directed Plasmids Sequence Deletion Transfection Research Support, U.S. Gov't, P.H.S. Multidisciplinary |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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