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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: EMDB / ID: EMD-30235 | |||||||||
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タイトル | Cryo-EM structure of amyloid fibril formed by hnRNPA1 low complexity domain | |||||||||
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![]() | amyloid fibril / PROTEIN FIBRIL | |||||||||
機能・相同性 | ![]() cellular response to sodium arsenite / SARS-CoV-1-host interactions / import into nucleus / telomeric repeat-containing RNA binding / pre-mRNA binding / G-rich strand telomeric DNA binding / nuclear export / RNA export from nucleus / miRNA binding / FGFR2 alternative splicing ...cellular response to sodium arsenite / SARS-CoV-1-host interactions / import into nucleus / telomeric repeat-containing RNA binding / pre-mRNA binding / G-rich strand telomeric DNA binding / nuclear export / RNA export from nucleus / miRNA binding / FGFR2 alternative splicing / regulation of alternative mRNA splicing, via spliceosome / SARS-CoV-1 modulates host translation machinery / regulation of RNA splicing / Processing of Capped Intron-Containing Pre-mRNA / negative regulation of telomere maintenance via telomerase / mRNA transport / cellular response to glucose starvation / positive regulation of telomere maintenance via telomerase / catalytic step 2 spliceosome / mRNA Splicing - Major Pathway / mRNA 3'-UTR binding / spliceosomal complex / mRNA splicing, via spliceosome / single-stranded DNA binding / single-stranded RNA binding / ribonucleoprotein complex / protein domain specific binding / DNA binding / RNA binding / extracellular exosome / nucleoplasm / identical protein binding / membrane / nucleus / cytoplasm / cytosol 類似検索 - 分子機能 | |||||||||
生物種 | ![]() | |||||||||
手法 | らせん対称体再構成法 / クライオ電子顕微鏡法 / 解像度: 2.8 Å | |||||||||
![]() | Sun YP / Zhao K | |||||||||
![]() | ![]() タイトル: The nuclear localization sequence mediates hnRNPA1 amyloid fibril formation revealed by cryoEM structure. 著者: Yunpeng Sun / Kun Zhao / Wencheng Xia / Guoqin Feng / Jinge Gu / Yeyang Ma / Xinrui Gui / Xia Zhang / Yanshan Fang / Bo Sun / Renxiao Wang / Cong Liu / Dan Li / ![]() 要旨: Human heterogeneous nuclear ribonucleoprotein A1 (hnRNPA1) serves as a key regulating protein in RNA metabolism. Malfunction of hnRNPA1 in nucleo-cytoplasmic transport or dynamic phase separation ...Human heterogeneous nuclear ribonucleoprotein A1 (hnRNPA1) serves as a key regulating protein in RNA metabolism. Malfunction of hnRNPA1 in nucleo-cytoplasmic transport or dynamic phase separation leads to abnormal amyloid aggregation and neurodegeneration. The low complexity (LC) domain of hnRNPA1 drives both dynamic phase separation and amyloid aggregation. Here, we use cryo-electron microscopy to determine the amyloid fibril structure formed by hnRNPA1 LC domain. Remarkably, the structure reveals that the nuclear localization sequence of hnRNPA1 (termed PY-NLS), which is initially known to mediate the nucleo-cytoplamic transport of hnRNPA1 through binding with karyopherin-β2 (Kapβ2), represents the major component of the fibril core. The residues that contribute to the binding of PY-NLS with Kapβ2 also exert key molecular interactions to stabilize the fibril structure. Notably, hnRNPA1 mutations found in familial amyotrophic lateral sclerosis (ALS) and multisystem proteinopathoy (MSP) are all involved in the fibril core and contribute to fibril stability. Our work illuminates structural understandings of the pathological amyloid aggregation of hnRNPA1 and the amyloid disaggregase activity of Kapβ2, and highlights the multiple roles of PY-NLS in hnRNPA1 homeostasis. | |||||||||
履歴 |
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構造の表示
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構造ビューア | EMマップ: ![]() ![]() ![]() |
添付画像 |
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ダウンロードとリンク
-EMDBアーカイブ
マップデータ | ![]() | 4.7 MB | ![]() | |
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ヘッダ (付随情報) | ![]() ![]() | 9 KB 9 KB | 表示 表示 | ![]() |
FSC (解像度算出) | ![]() | 10.2 KB | 表示 | ![]() |
画像 | ![]() | 71.4 KB | ||
Filedesc metadata | ![]() | 4.7 KB | ||
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-検証レポート
文書・要旨 | ![]() | 376.9 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 376.5 KB | 表示 | |
XML形式データ | ![]() | 11.4 KB | 表示 | |
CIF形式データ | ![]() | 14.9 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
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リンク
EMDBのページ | ![]() ![]() |
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「今月の分子」の関連する項目 |
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マップ
ファイル | ![]() | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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ボクセルのサイズ | X=Y=Z: 1.04 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
CCP4マップ ヘッダ情報:
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-添付データ
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試料の構成要素
-全体 : Amyloid fibril formed by hnRNPA1 low complexity domain
全体 | 名称: Amyloid fibril formed by hnRNPA1 low complexity domain |
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要素 |
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-超分子 #1: Amyloid fibril formed by hnRNPA1 low complexity domain
超分子 | 名称: Amyloid fibril formed by hnRNPA1 low complexity domain タイプ: organelle_or_cellular_component / ID: 1 / 親要素: 0 / 含まれる分子: all |
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由来(天然) | 生物種: ![]() |
-分子 #1: Heterogeneous nuclear ribonucleoprotein A1
分子 | 名称: Heterogeneous nuclear ribonucleoprotein A1 / タイプ: protein_or_peptide / ID: 1 / コピー数: 6 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 13.082421 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: MASASSSQRG RSGSGNFGGG RGGGFGGNDN FGRGGNFSGR GGFGGSRGGG GYGGSGDGYN GFGNDGSNFG GGGSYNDFGN YNNQSSNFG PMKGGNFGGR SSGPYGGGGQ YFAKPRNQGG YGGSSSSSSY GSGRRF UniProtKB: Heterogeneous nuclear ribonucleoprotein A1 |
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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![]() | らせん対称体再構成法 |
試料の集合状態 | filament |
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試料調製
緩衝液 | pH: 5 |
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凍結 | 凍結剤: ETHANE |
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電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
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撮影 | フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) 平均電子線量: 59.0 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: ![]() |
電子光学系 | 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD |
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |