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-Structure paper
| タイトル | Cryo-EM structures and atomic model of the HIV-1 strand transfer complex intasome. |
|---|---|
| ジャーナル・号・ページ | Science, Vol. 355, Issue 6320, Page 89-92, Year 2017 |
| 掲載日 | 2017年1月6日 |
著者 | Dario Oliveira Passos / Min Li / Renbin Yang / Stephanie V Rebensburg / Rodolfo Ghirlando / Youngmin Jeon / Nikoloz Shkriabai / Mamuka Kvaratskhelia / Robert Craigie / Dmitry Lyumkis / ![]() |
| PubMed 要旨 | Like all retroviruses, HIV-1 irreversibly inserts a viral DNA (vDNA) copy of its RNA genome into host target DNA (tDNA). The intasome, a higher-order nucleoprotein complex composed of viral integrase ...Like all retroviruses, HIV-1 irreversibly inserts a viral DNA (vDNA) copy of its RNA genome into host target DNA (tDNA). The intasome, a higher-order nucleoprotein complex composed of viral integrase (IN) and the ends of linear vDNA, mediates integration. Productive integration into host chromatin results in the formation of the strand transfer complex (STC) containing catalytically joined vDNA and tDNA. HIV-1 intasomes have been refractory to high-resolution structural studies. We used a soluble IN fusion protein to facilitate structural studies, through which we present a high-resolution cryo-electron microscopy (cryo-EM) structure of the core tetrameric HIV-1 STC and a higher-order form that adopts carboxyl-terminal domain rearrangements. The distinct STC structures highlight how HIV-1 can use the common retroviral intasome core architecture to accommodate different IN domain modules for assembly. |
リンク | Science / PubMed:28059769 / PubMed Central |
| 手法 | EM (単粒子) |
| 解像度 | 3.9 - 4.6 Å |
| 構造データ | EMDB-8481, PDB-5u1c: ![]() EMDB-8483: |
| 化合物 | ![]() ChemComp-ZN: ![]() ChemComp-MG: |
| 由来 |
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キーワード | VIRAL PROTEIN / integrase / integration / transposase / transesterification |
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human immunodeficiency virus 1 (ヒト免疫不全ウイルス)
homo sapiens (ヒト)
sulfolobus solfataricus (古細菌)
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