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-Structure paper
| タイトル | Structural basis of host protein hijacking in human T-cell leukemia virus integration. |
|---|---|
| ジャーナル・号・ページ | Nat Commun, Vol. 11, Issue 1, Page 3121, Year 2020 |
| 掲載日 | 2020年6月19日 |
著者 | Veer Bhatt / Ke Shi / Daniel J Salamango / Nicholas H Moeller / Krishan K Pandey / Sibes Bera / Heather O Bohl / Fredy Kurniawan / Kayo Orellana / Wei Zhang / Duane P Grandgenett / Reuben S Harris / Anna C Sundborger-Lunna / Hideki Aihara / ![]() |
| PubMed 要旨 | Integration of the reverse-transcribed viral DNA into host chromosomes is a critical step in the life-cycle of retroviruses, including an oncogenic delta(δ)-retrovirus human T-cell leukemia virus ...Integration of the reverse-transcribed viral DNA into host chromosomes is a critical step in the life-cycle of retroviruses, including an oncogenic delta(δ)-retrovirus human T-cell leukemia virus type-1 (HTLV-1). Retroviral integrase forms a higher order nucleoprotein assembly (intasome) to catalyze the integration reaction, in which the roles of host factors remain poorly understood. Here, we use cryo-electron microscopy to visualize the HTLV-1 intasome at 3.7-Å resolution. The structure together with functional analyses reveal that the B56γ (B'γ) subunit of an essential host enzyme, protein phosphatase 2 A (PP2A), is repurposed as an integral component of the intasome to mediate HTLV-1 integration. Our studies reveal a key host-virus interaction underlying the replication of an important human pathogen and highlight divergent integration strategies of retroviruses. |
リンク | Nat Commun / PubMed:32561747 / PubMed Central |
| 手法 | EM (単粒子) |
| 解像度 | 3.7 Å |
| 構造データ | EMDB-21301, PDB-6voy: |
| 化合物 | ![]() ChemComp-ZN: ![]() ChemComp-MG: |
| 由来 |
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キーワード | DNA BINDING PROTEIN/DNA / Integrase / Intasome / DNA BINDING PROTEIN-DNA complex |
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human t-cell leukemia virus type i (ウイルス)
homo sapiens (ヒト)
saccharolobus solfataricus (strain atcc 35092 / dsm 1617 / jcm 11322 / p2) (古細菌)
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