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-Structure paper
| タイトル | Structure of the Vesicular Stomatitis Virus L Protein in Complex with Its Phosphoprotein Cofactor. |
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| ジャーナル・号・ページ | Cell Rep, Vol. 30, Issue 1, Page 53-60.e5, Year 2020 |
| 掲載日 | 2020年1月7日 |
著者 | Simon Jenni / Louis-Marie Bloyet / Ruben Diaz-Avalos / Bo Liang / Sean P J Whelan / Nikolaus Grigorieff / Stephen C Harrison / ![]() |
| PubMed 要旨 | The large (L) proteins of non-segmented, negative-strand RNA viruses are multifunctional enzymes that produce capped, methylated, and polyadenylated mRNA and replicate the viral genome. A ...The large (L) proteins of non-segmented, negative-strand RNA viruses are multifunctional enzymes that produce capped, methylated, and polyadenylated mRNA and replicate the viral genome. A phosphoprotein (P), required for efficient RNA-dependent RNA polymerization from the viral ribonucleoprotein (RNP) template, regulates the function and conformation of the L protein. We report the structure of vesicular stomatitis virus L in complex with its P cofactor determined by electron cryomicroscopy at 3.0 Å resolution, enabling us to visualize bound segments of P. The contacts of three P segments with multiple L domains show how P induces a closed, compact, initiation-competent conformation. Binding of P to L positions its N-terminal domain adjacent to a putative RNA exit channel for efficient encapsidation of newly synthesized genomes with the nucleoprotein and orients its C-terminal domain to interact with an RNP template. The model shows that a conserved tryptophan in the priming loop can support the initiating 5' nucleotide. |
リンク | Cell Rep / PubMed:31914397 / PubMed Central |
| 手法 | EM (単粒子) |
| 解像度 | 3.0 Å |
| 構造データ | EMDB-20614, PDB-6u1x: |
| 化合物 | ![]() ChemComp-ZN: |
| 由来 |
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キーワード | VIRAL PROTEIN / Vesicular stomatitis virus / RNA-dependent RNA polymerase / L protein / P protein / phosphoprotein / single particle analysis / transcription / replication / virus / viral / RdRp / PRNTase / nonsegmented negative-sense RNA viruses |
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Vesicular stomatitis virus (ウイルス)
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