+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 7r1y | ||||||
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タイトル | cryoEM structure of human Nup155 (residues 19-981) | ||||||
要素 | Nuclear pore complex protein Nup155 | ||||||
キーワード | STRUCTURAL PROTEIN / nucleoporin / beta-propeller | ||||||
機能・相同性 | 機能・相同性情報 nuclear pore inner ring / protein localization to nuclear inner membrane / nuclear envelope organization / transcription-dependent tethering of RNA polymerase II gene DNA at nuclear periphery / atrial cardiac muscle cell action potential / Nuclear Pore Complex (NPC) Disassembly / Transport of Ribonucleoproteins into the Host Nucleus / Regulation of Glucokinase by Glucokinase Regulatory Protein / Defective TPR may confer susceptibility towards thyroid papillary carcinoma (TPC) / miRNA processing ...nuclear pore inner ring / protein localization to nuclear inner membrane / nuclear envelope organization / transcription-dependent tethering of RNA polymerase II gene DNA at nuclear periphery / atrial cardiac muscle cell action potential / Nuclear Pore Complex (NPC) Disassembly / Transport of Ribonucleoproteins into the Host Nucleus / Regulation of Glucokinase by Glucokinase Regulatory Protein / Defective TPR may confer susceptibility towards thyroid papillary carcinoma (TPC) / miRNA processing / Transport of the SLBP independent Mature mRNA / Transport of the SLBP Dependant Mature mRNA / NS1 Mediated Effects on Host Pathways / SUMOylation of SUMOylation proteins / Transport of Mature mRNA Derived from an Intronless Transcript / structural constituent of nuclear pore / Rev-mediated nuclear export of HIV RNA / SUMOylation of RNA binding proteins / Nuclear import of Rev protein / RNA export from nucleus / NEP/NS2 Interacts with the Cellular Export Machinery / tRNA processing in the nucleus / Transport of Mature mRNA derived from an Intron-Containing Transcript / Postmitotic nuclear pore complex (NPC) reformation / nucleocytoplasmic transport / Viral Messenger RNA Synthesis / SUMOylation of ubiquitinylation proteins / Vpr-mediated nuclear import of PICs / SUMOylation of DNA replication proteins / Regulation of HSF1-mediated heat shock response / mRNA export from nucleus / nuclear pore / SUMOylation of DNA damage response and repair proteins / SUMOylation of chromatin organization proteins / HCMV Late Events / Transcriptional regulation by small RNAs / ISG15 antiviral mechanism / HCMV Early Events / protein import into nucleus / nuclear envelope / snRNP Assembly / nuclear membrane / SARS-CoV-2 activates/modulates innate and adaptive immune responses / membrane / cytosol 類似検索 - 分子機能 | ||||||
生物種 | Homo sapiens (ヒト) | ||||||
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 Å | ||||||
データ登録者 | Taniguchi, R. / Beck, M. | ||||||
資金援助 | ドイツ, 1件
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引用 | ジャーナル: Science / 年: 2022 タイトル: AI-based structure prediction empowers integrative structural analysis of human nuclear pores. 著者: Shyamal Mosalaganti / Agnieszka Obarska-Kosinska / Marc Siggel / Reiya Taniguchi / Beata Turoňová / Christian E Zimmerli / Katarzyna Buczak / Florian H Schmidt / Erica Margiotta / Marie- ...著者: Shyamal Mosalaganti / Agnieszka Obarska-Kosinska / Marc Siggel / Reiya Taniguchi / Beata Turoňová / Christian E Zimmerli / Katarzyna Buczak / Florian H Schmidt / Erica Margiotta / Marie-Therese Mackmull / Wim J H Hagen / Gerhard Hummer / Jan Kosinski / Martin Beck / 要旨: INTRODUCTION The eukaryotic nucleus pro-tects the genome and is enclosed by the two membranes of the nuclear envelope. Nuclear pore complexes (NPCs) perforate the nuclear envelope to facilitate ...INTRODUCTION The eukaryotic nucleus pro-tects the genome and is enclosed by the two membranes of the nuclear envelope. Nuclear pore complexes (NPCs) perforate the nuclear envelope to facilitate nucleocytoplasmic transport. With a molecular weight of ∼120 MDa, the human NPC is one of the larg-est protein complexes. Its ~1000 proteins are taken in multiple copies from a set of about 30 distinct nucleoporins (NUPs). They can be roughly categorized into two classes. Scaf-fold NUPs contain folded domains and form a cylindrical scaffold architecture around a central channel. Intrinsically disordered NUPs line the scaffold and extend into the central channel, where they interact with cargo complexes. The NPC architecture is highly dynamic. It responds to changes in nuclear envelope tension with conforma-tional breathing that manifests in dilation and constriction movements. Elucidating the scaffold architecture, ultimately at atomic resolution, will be important for gaining a more precise understanding of NPC function and dynamics but imposes a substantial chal-lenge for structural biologists. RATIONALE Considerable progress has been made toward this goal by a joint effort in the field. A synergistic combination of complementary approaches has turned out to be critical. In situ structural biology techniques were used to reveal the overall layout of the NPC scaffold that defines the spatial reference for molecular modeling. High-resolution structures of many NUPs were determined in vitro. Proteomic analysis and extensive biochemical work unraveled the interaction network of NUPs. Integra-tive modeling has been used to combine the different types of data, resulting in a rough outline of the NPC scaffold. Previous struc-tural models of the human NPC, however, were patchy and limited in accuracy owing to several challenges: (i) Many of the high-resolution structures of individual NUPs have been solved from distantly related species and, consequently, do not comprehensively cover their human counterparts. (ii) The scaf-fold is interconnected by a set of intrinsically disordered linker NUPs that are not straight-forwardly accessible to common structural biology techniques. (iii) The NPC scaffold intimately embraces the fused inner and outer nuclear membranes in a distinctive topol-ogy and cannot be studied in isolation. (iv) The conformational dynamics of scaffold NUPs limits the resolution achievable in structure determination. RESULTS In this study, we used artificial intelligence (AI)-based prediction to generate an exten-sive repertoire of structural models of human NUPs and their subcomplexes. The resulting models cover various domains and interfaces that so far remained structurally uncharac-terized. Benchmarking against previous and unpublished x-ray and cryo-electron micros-copy structures revealed unprecedented accu-racy. We obtained well-resolved cryo-electron tomographic maps of both the constricted and dilated conformational states of the hu-man NPC. Using integrative modeling, we fit-ted the structural models of individual NUPs into the cryo-electron microscopy maps. We explicitly included several linker NUPs and traced their trajectory through the NPC scaf-fold. We elucidated in great detail how mem-brane-associated and transmembrane NUPs are distributed across the fusion topology of both nuclear membranes. The resulting architectural model increases the structural coverage of the human NPC scaffold by about twofold. We extensively validated our model against both earlier and new experimental data. The completeness of our model has enabled microsecond-long coarse-grained molecular dynamics simulations of the NPC scaffold within an explicit membrane en-vironment and solvent. These simulations reveal that the NPC scaffold prevents the constriction of the otherwise stable double-membrane fusion pore to small diameters in the absence of membrane tension. CONCLUSION Our 70-MDa atomically re-solved model covers >90% of the human NPC scaffold. It captures conforma-tional changes that occur during dilation and constriction. It also reveals the precise anchoring sites for intrinsically disordered NUPs, the identification of which is a prerequisite for a complete and dy-namic model of the NPC. Our study exempli-fies how AI-based structure prediction may accelerate the elucidation of subcellular ar-chitecture at atomic resolution. [Figure: see text]. | ||||||
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 | 7r1y.cif.gz | 156.9 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb7r1y.ent.gz | 109 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 7r1y.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 | 7r1y_validation.pdf.gz | 1.2 MB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 7r1y_full_validation.pdf.gz | 1.2 MB | 表示 | |
XML形式データ | 7r1y_validation.xml.gz | 34.1 KB | 表示 | |
CIF形式データ | 7r1y_validation.cif.gz | 49.7 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/r1/7r1y ftp://data.pdbj.org/pub/pdb/validation_reports/r1/7r1y | HTTPS FTP |
-関連構造データ
関連構造データ | 14243MC 7r5jC 7r5kC 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 (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 |
-リンク
-集合体
登録構造単位 |
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1 |
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-要素
#1: タンパク質 | 分子量: 154999.672 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: NUP155, KIAA0791 発現宿主: Spodoptera frugiperda (ツマジロクサヨトウ) 参照: UniProt: O75694 |
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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 |
-試料調製
構成要素 | 名称: Nup155 from homo sapiens / タイプ: ORGANELLE OR CELLULAR COMPONENT / Entity ID: all / 由来: RECOMBINANT |
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分子量 | 実験値: NO |
由来(天然) | 生物種: Homo sapiens (ヒト) |
由来(組換発現) | 生物種: Spodoptera frugiperda (ツマジロクサヨトウ) 株: Sf21 |
緩衝液 | pH: 7.5 |
試料 | 濃度: 0.4 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
試料支持 | グリッドの材料: GOLD / グリッドのサイズ: 300 divisions/in. / グリッドのタイプ: UltrAuFoil R0.6/1 |
急速凍結 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE / 湿度: 100 % / 凍結前の試料温度: 277 K |
-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: FEI TITAN 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): 1000 nm / C2レンズ絞り径: 70 µm |
撮影 | 平均露光時間: 5.85 sec. / 電子線照射量: 50 e/Å2 フィルム・検出器のモデル: FEI FALCON IV (4k x 4k) 撮影したグリッド数: 1 / 実像数: 5901 |
電子光学装置 | エネルギーフィルター名称: TFS Selectris X / エネルギーフィルタースリット幅: 10 eV |
-解析
ソフトウェア |
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EMソフトウェア |
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||
3次元再構成 | 解像度: 3 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 98742 / 対称性のタイプ: POINT | ||||||||||||||||||||||||||||||||
原子モデル構築 | プロトコル: AB INITIO MODEL / 空間: REAL | ||||||||||||||||||||||||||||||||
原子モデル構築 | PDB-ID: 5HAX PDB chain-ID: A / Accession code: 5HAX / Source name: PDB / タイプ: experimental model | ||||||||||||||||||||||||||||||||
精密化 | 交差検証法: NONE 立体化学のターゲット値: GeoStd + Monomer Library + CDL v1.2 | ||||||||||||||||||||||||||||||||
原子変位パラメータ | Biso mean: 52.12 Å2 | ||||||||||||||||||||||||||||||||
拘束条件 |
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