ジャーナル: Cell / 年: 2025 タイトル: Passage of the HIV capsid cracks the nuclear pore. 著者: Jan Philipp Kreysing / Maziar Heidari / Vojtech Zila / Sergio Cruz-León / Agnieszka Obarska-Kosinska / Vibor Laketa / Lara Rohleder / Sonja Welsch / Jürgen Köfinger / Beata Turoňová / ...著者: Jan Philipp Kreysing / Maziar Heidari / Vojtech Zila / Sergio Cruz-León / Agnieszka Obarska-Kosinska / Vibor Laketa / Lara Rohleder / Sonja Welsch / Jürgen Köfinger / Beata Turoňová / Gerhard Hummer / Hans-Georg Kräusslich / Martin Beck / 要旨: Upon infection, human immunodeficiency virus type 1 (HIV-1) releases its cone-shaped capsid into the cytoplasm of infected T cells and macrophages. The capsid enters the nuclear pore complex (NPC), ...Upon infection, human immunodeficiency virus type 1 (HIV-1) releases its cone-shaped capsid into the cytoplasm of infected T cells and macrophages. The capsid enters the nuclear pore complex (NPC), driven by interactions with numerous phenylalanine-glycine (FG)-repeat nucleoporins (FG-Nups). Whether NPCs structurally adapt to capsid passage and whether capsids are modified during passage remains unknown, however. Here, we combined super-resolution and correlative microscopy with cryoelectron tomography and molecular simulations to study the nuclear entry of HIV-1 capsids in primary human macrophages. Our data indicate that cytosolically bound cyclophilin A is stripped off capsids entering the NPC, and the capsid hexagonal lattice remains largely intact inside and beyond the central channel. Strikingly, the NPC scaffold rings frequently crack during capsid passage, consistent with computer simulations indicating the need for NPC widening. The unique cone shape of the HIV-1 capsid facilitates its entry into NPCs and helps to crack their rings.
超分子 #1: Human immunodeficiency virus type 1, NNHIV
超分子
名称: Human immunodeficiency virus type 1, NNHIV / タイプ: virus / ID: 1 / 親要素: 0 詳細: For production of non-infectious IN.mScarlet labeled R5-tropic NNHIV, HEK293T cells were transfected with pNNHIVdeltaEnv, 490 pVpr.INNN.mScarlet and pEnv-4059 at a molar ratio of 4.5:1:1. NCBI-ID: 11676 / 生物種: Human immunodeficiency virus type 1, NNHIV / Sci species strain: NL4-3 / ウイルスタイプ: VIRUS-LIKE PARTICLE / ウイルス・単離状態: STRAIN / ウイルス・エンベロープ: Yes / ウイルス・中空状態: No