+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 8ci8 | ||||||
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タイトル | Cryo-EM structure of the Nup98(298-327) fibril | ||||||
要素 | Nuclear pore complex protein Nup98 | ||||||
キーワード | PROTEIN FIBRIL / Nup98 / nuclear pore / FG repeats / amyloid fibrils | ||||||
機能・相同性 | 機能・相同性情報 nuclear pore organization / nuclear pore outer ring / nuclear pore complex assembly / telomere tethering at nuclear periphery / post-transcriptional tethering of RNA polymerase II gene DNA at nuclear periphery / nuclear pore cytoplasmic filaments / Nuclear Pore Complex (NPC) Disassembly / nuclear inclusion body / nuclear pore nuclear basket / Transport of Ribonucleoproteins into the Host Nucleus ...nuclear pore organization / nuclear pore outer ring / nuclear pore complex assembly / telomere tethering at nuclear periphery / post-transcriptional tethering of RNA polymerase II gene DNA at nuclear periphery / nuclear pore cytoplasmic filaments / Nuclear Pore Complex (NPC) Disassembly / nuclear inclusion body / nuclear pore nuclear basket / Transport of Ribonucleoproteins into the Host Nucleus / Regulation of Glucokinase by Glucokinase Regulatory Protein / Defective TPR may confer susceptibility towards thyroid papillary carcinoma (TPC) / 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 / Nuclear import of Rev protein / SUMOylation of RNA binding proteins / 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 / positive regulation of mRNA splicing, via spliceosome / nucleocytoplasmic transport / Viral Messenger RNA Synthesis / nuclear localization sequence binding / SUMOylation of ubiquitinylation proteins / Vpr-mediated nuclear import of PICs / SUMOylation of DNA replication proteins / 加水分解酵素; プロテアーゼ; ペプチド結合加水分解酵素; セリンエンドペプチターゼ / Regulation of HSF1-mediated heat shock response / mRNA transport / nuclear pore / Amplification of signal from unattached kinetochores via a MAD2 inhibitory signal / SUMOylation of DNA damage response and repair proteins / Mitotic Prometaphase / EML4 and NUDC in mitotic spindle formation / Resolution of Sister Chromatid Cohesion / serine-type peptidase activity / SUMOylation of chromatin organization proteins / nuclear periphery / HCMV Late Events / promoter-specific chromatin binding / RHO GTPases Activate Formins / Transcriptional regulation by small RNAs / molecular condensate scaffold activity / ISG15 antiviral mechanism / HCMV Early Events / protein import into nucleus / Separation of Sister Chromatids / nuclear envelope / snRNP Assembly / nuclear membrane / transcription coactivator activity / nuclear body / ribonucleoprotein complex / mRNA binding / SARS-CoV-2 activates/modulates innate and adaptive immune responses / proteolysis / RNA binding / nucleoplasm / cytosol 類似検索 - 分子機能 | ||||||
生物種 | Homo sapiens (ヒト) | ||||||
手法 | 電子顕微鏡法 / らせん対称体再構成法 / クライオ電子顕微鏡法 / 解像度: 2.67 Å | ||||||
データ登録者 | Ibanez de Opakua, A. / Cima-Omori, S. / Dienemann, C. / Zweckstetter, M. | ||||||
資金援助 | European Union, 1件
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引用 | ジャーナル: Nat Commun / 年: 2024 タイトル: Impact of distinct FG nucleoporin repeats on Nup98 self-association. 著者: Alain Ibáñez de Opakua / Christian F Pantoja / Maria-Sol Cima-Omori / Christian Dienemann / Markus Zweckstetter / 要旨: Nucleoporins rich in phenylalanine/glycine (FG) residues form the permeability barrier within the nuclear pore complex and are implicated in several pathological cellular processes, including ...Nucleoporins rich in phenylalanine/glycine (FG) residues form the permeability barrier within the nuclear pore complex and are implicated in several pathological cellular processes, including oncogenic fusion condensates. The self-association of FG-repeat proteins and interactions between FG-repeats play a critical role in these activities by forming hydrogel-like structures. Here we show that mutation of specific FG repeats of Nup98 can strongly decrease the protein's self-association capabilities. We further present a cryo-electron microscopy structure of a Nup98 peptide fibril with higher stability per residue compared with previous Nup98 fibril structures. The high-resolution structure reveals zipper-like hydrophobic patches which contain a GLFG motif and are less compatible for binding to nuclear transport receptors. The identified distinct molecular properties of different regions of the nucleoporin may contribute to spatial variations in the self-association of FG-repeats, potentially influencing transport processes through the nuclear pore. | ||||||
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 | 8ci8.cif.gz | 91.7 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb8ci8.ent.gz | 72 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 8ci8.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 | 8ci8_validation.pdf.gz | 990.3 KB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 8ci8_full_validation.pdf.gz | 989.8 KB | 表示 | |
XML形式データ | 8ci8_validation.xml.gz | 23.9 KB | 表示 | |
CIF形式データ | 8ci8_validation.cif.gz | 36.9 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/ci/8ci8 ftp://data.pdbj.org/pub/pdb/validation_reports/ci/8ci8 | HTTPS FTP |
-関連構造データ
関連構造データ | 16671MC 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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-要素
#1: タンパク質・ペプチド | 分子量: 3034.271 Da / 分子数: 25 / 由来タイプ: 合成 / 由来: (合成) Homo sapiens (ヒト) / 参照: UniProt: P52948 |
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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: FILAMENT / 3次元再構成法: らせん対称体再構成法 |
-試料調製
構成要素 | 名称: Nup98(298-327) / タイプ: COMPLEX 詳細: Synthetic peptide (N-terminal acetylated and C-terminal amydated). Entity ID: all / 由来: NATURAL |
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由来(天然) | 生物種: Homo sapiens (ヒト) |
由来(組換発現) | 生物種: Escherichia coli (大腸菌) |
緩衝液 | pH: 6.5 / 詳細: In water. |
試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
急速凍結 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE |
-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): 700 nm / C2レンズ絞り径: 50 µm |
撮影 | 平均露光時間: 2.3 sec. / 電子線照射量: 40.62 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
-解析
ソフトウェア | 名称: PHENIX / バージョン: 1.20.1_4487: / 分類: 精密化 | |||||||||||||||||||||||||||||||||||
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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 | |||||||||||||||||||||||||||||||||||
らせん対称 | 回転角度/サブユニット: -1.19 ° / 軸方向距離/サブユニット: 4.71 Å / らせん対称軸の対称性: C1 | |||||||||||||||||||||||||||||||||||
3次元再構成 | 解像度: 2.67 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 38099 / 対称性のタイプ: HELICAL |