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-基本情報
登録情報 | データベース: PDB / ID: 8g6d | |||||||||||||||
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タイトル | HSV-1 Nuclear Egress Complex (SUP; UL31-R229L) | |||||||||||||||
要素 |
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キーワード | VIRAL PROTEIN / viral nuclear egress complex | |||||||||||||||
機能・相同性 | 機能・相同性情報 exit of virus from host cell nucleus by nuclear egress / host cell nuclear inner membrane / viral budding from nuclear membrane / membrane / metal ion binding 類似検索 - 分子機能 | |||||||||||||||
生物種 | Human alphaherpesvirus 1 strain 17 (ヘルペスウイルス) | |||||||||||||||
手法 | X線回折 / シンクロトロン / 分子置換 / 解像度: 3.92 Å | |||||||||||||||
データ登録者 | Draganova, E.B. / Gonzalez Del-Pino, G.L. / Heldwein, E.E. | |||||||||||||||
資金援助 | 米国, 4件
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引用 | ジャーナル: PLoS Pathog / 年: 2024 タイトル: The universal suppressor mutation restores membrane budding defects in the HSV-1 nuclear egress complex by stabilizing the oligomeric lattice. 著者: Elizabeth B Draganova / Hui Wang / Melanie Wu / Shiqing Liao / Amber Vu / Gonzalo L Gonzalez-Del Pino / Z Hong Zhou / Richard J Roller / Ekaterina E Heldwein / 要旨: Nuclear egress is an essential process in herpesvirus replication whereby nascent capsids translocate from the nucleus to the cytoplasm. This initial step of nuclear egress-budding at the inner ...Nuclear egress is an essential process in herpesvirus replication whereby nascent capsids translocate from the nucleus to the cytoplasm. This initial step of nuclear egress-budding at the inner nuclear membrane-is coordinated by the nuclear egress complex (NEC). Composed of the viral proteins UL31 and UL34, NEC deforms the membrane around the capsid as the latter buds into the perinuclear space. NEC oligomerization into a hexagonal membrane-bound lattice is essential for budding because NEC mutants designed to perturb lattice interfaces reduce its budding ability. Previously, we identified an NEC suppressor mutation capable of restoring budding to a mutant with a weakened hexagonal lattice. Using an established in-vitro budding assay and HSV-1 infected cell experiments, we show that the suppressor mutation can restore budding to a broad range of budding-deficient NEC mutants thereby acting as a universal suppressor. Cryogenic electron tomography of the suppressor NEC mutant lattice revealed a hexagonal lattice reminiscent of wild-type NEC lattice instead of an alternative lattice. Further investigation using x-ray crystallography showed that the suppressor mutation promoted the formation of new contacts between the NEC hexamers that, ostensibly, stabilized the hexagonal lattice. This stabilization strategy is powerful enough to override the otherwise deleterious effects of mutations that destabilize the NEC lattice by different mechanisms, resulting in a functional NEC hexagonal lattice and restoration of membrane budding. | |||||||||||||||
履歴 |
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-構造の表示
構造ビューア | 分子: MolmilJmol/JSmol |
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-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 8g6d.cif.gz | 588.7 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb8g6d.ent.gz | 391.3 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 8g6d.json.gz | ツリー表示 | PDBx/mmJSON形式 | |
その他 | その他のダウンロード |
-検証レポート
文書・要旨 | 8g6d_validation.pdf.gz | 541.1 KB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 8g6d_full_validation.pdf.gz | 575 KB | 表示 | |
XML形式データ | 8g6d_validation.xml.gz | 83.7 KB | 表示 | |
CIF形式データ | 8g6d_validation.cif.gz | 112 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/g6/8g6d ftp://data.pdbj.org/pub/pdb/validation_reports/g6/8g6d | HTTPS FTP |
-関連構造データ
関連構造データ | C: 同じ文献を引用 (文献) |
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類似構造データ | 類似検索 - 機能・相同性F&H 検索 |
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非結晶学的対称性 (NCS) | NCSドメイン:
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