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データを開く
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基本情報
| 登録情報 | データベース: PDB / ID: 9cm1 | ||||||||||||||||||||||||
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| タイトル | Novel designed icosahedral nanoparticle I3-D12 | ||||||||||||||||||||||||
要素 | Phosphosulfolactate synthase | ||||||||||||||||||||||||
キーワード | VIRUS LIKE PARTICLE / Thermophile / nanoparticle / icosahedron / dehydratase | ||||||||||||||||||||||||
| 機能・相同性 | 機能・相同性情報phosphosulfolactate synthase / phosphosulfolactate synthase activity / coenzyme M biosynthetic process / sulfopyruvate decarboxylase activity 類似検索 - 分子機能 | ||||||||||||||||||||||||
| 生物種 | ![]() | ||||||||||||||||||||||||
| 手法 | 電子顕微鏡法 / 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 3.5 Å | ||||||||||||||||||||||||
データ登録者 | Haas, C.M. / Jasti, N. / Dosey, A.M. / Gillespie, R. / McGowan, J. / Allen, J.D. / Leaf, E.M. / Crispin, M. / DeForest, C. / Kanekiyo, M. / King, N.P. | ||||||||||||||||||||||||
| 資金援助 | 米国, 1件
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引用 | ジャーナル: Proc Natl Acad Sci U S A / 年: 2025タイトル: From sequence to scaffold: Computational design of protein nanoparticle vaccines from AlphaFold2-predicted building blocks. 著者: Cyrus M Haas / Naveen Jasti / Annie Dosey / Joel D Allen / Rebecca Gillespie / Jackson McGowan / Elizabeth M Leaf / Max Crispin / Cole A DeForest / Masaru Kanekiyo / Neil P King / ![]() 要旨: Self-assembling protein nanoparticles are being increasingly utilized in the design of next-generation vaccines due to their ability to induce antibody responses of superior magnitude, breadth, and ...Self-assembling protein nanoparticles are being increasingly utilized in the design of next-generation vaccines due to their ability to induce antibody responses of superior magnitude, breadth, and durability. Computational protein design offers a route to nanoparticle scaffolds with structural and biochemical features tailored to specific vaccine applications. Although strategies for designing self-assembling proteins have been established, the recent development of powerful machine learning (ML)-based tools for protein structure prediction and design provides an opportunity to overcome several of their limitations. Here, we leveraged these tools to develop a generalizable method for designing self-assembling proteins starting from AlphaFold2 predictions of oligomeric protein building blocks. We used the method to generate six 60-subunit protein nanoparticles with icosahedral symmetry, and single-particle cryoelectron microscopy reconstructions of three of them revealed that they were designed with atomic-level accuracy. To transform one of these nanoparticles into a functional immunogen, we reoriented its termini through circular permutation, added a genetically encoded oligomannose-type glycan, and displayed a stabilized trimeric variant of the influenza hemagglutinin receptor-binding domain through a rigid de novo linker. The resultant immunogen elicited potent receptor-blocking and neutralizing antibody responses in mice. Our results demonstrate the practical utility of ML-based protein modeling tools in the design of nanoparticle vaccines. More broadly, by eliminating the requirement for experimentally determined structures of protein building blocks, our method dramatically expands the number of starting points available for designing self-assembling proteins. | ||||||||||||||||||||||||
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構造の表示
| 構造ビューア | 分子: Molmil Jmol/JSmol |
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ダウンロードとリンク
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ダウンロード
| PDBx/mmCIF形式 | 9cm1.cif.gz | 4.3 MB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb9cm1.ent.gz | 表示 | PDB形式 | |
| PDBx/mmJSON形式 | 9cm1.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
| アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/cm/9cm1 ftp://data.pdbj.org/pub/pdb/validation_reports/cm/9cm1 | HTTPS FTP |
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-関連構造データ
| 関連構造データ | ![]() 45736MC ![]() 9clzC ![]() 9cm0C M: このデータのモデリングに利用したマップデータ C: 同じ文献を引用 ( |
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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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リンク
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集合体
| 登録構造単位 | ![]()
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要素
| #1: タンパク質 | 分子量: 29228.348 Da / 分子数: 60 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() Has protein modification | N | |
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-実験情報
-実験
| 実験 | 手法: 電子顕微鏡法 |
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| EM実験 | 試料の集合状態: PARTICLE / 3次元再構成法: 単粒子再構成法 |
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試料調製
| 構成要素 | 名称: Novel designed icosahedral nanoparticle I3-D12 / タイプ: COMPLEX / Entity ID: all / 由来: RECOMBINANT |
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| 由来(天然) | 生物種: ![]() |
| 由来(組換発現) | 生物種: ![]() |
| 緩衝液 | pH: 8 |
| 試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
| 急速凍結 | 凍結剤: ETHANE |
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電子顕微鏡撮影
| 実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
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| 顕微鏡 | モデル: TFS KRIOS |
| 電子銃 | 電子線源: FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: FLOOD BEAM |
| 電子レンズ | モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 2000 nm / 最小 デフォーカス(公称値): 500 nm |
| 撮影 | 電子線照射量: 52 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
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解析
| CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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| 3次元再構成 | 解像度: 3.5 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 165931 / 対称性のタイプ: POINT |
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米国, 1件
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FIELD EMISSION GUN