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基本情報
登録情報 | ![]() | ||||||||||||
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タイトル | Cryo-EM structure of amyloid fibril formed by full-length human SOD1 | ||||||||||||
![]() | The cryo-EM map of SOD1 fibril. | ||||||||||||
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![]() | Amyloid fibril / PROTEIN FIBRIL | ||||||||||||
機能・相同性 | ![]() action potential initiation / neurofilament cytoskeleton organization / protein phosphatase 2B binding / regulation of organ growth / relaxation of vascular associated smooth muscle / anterograde axonal transport / positive regulation of oxidative stress-induced intrinsic apoptotic signaling pathway / response to superoxide / regulation of T cell differentiation in thymus / peripheral nervous system myelin maintenance ...action potential initiation / neurofilament cytoskeleton organization / protein phosphatase 2B binding / regulation of organ growth / relaxation of vascular associated smooth muscle / anterograde axonal transport / positive regulation of oxidative stress-induced intrinsic apoptotic signaling pathway / response to superoxide / regulation of T cell differentiation in thymus / peripheral nervous system myelin maintenance / retina homeostasis / auditory receptor cell stereocilium organization / hydrogen peroxide biosynthetic process / retrograde axonal transport / superoxide anion generation / regulation of GTPase activity / myeloid cell homeostasis / muscle cell cellular homeostasis / superoxide metabolic process / heart contraction / superoxide dismutase / Detoxification of Reactive Oxygen Species / transmission of nerve impulse / negative regulation of reproductive process / negative regulation of developmental process / superoxide dismutase activity / regulation of multicellular organism growth / response to axon injury / ectopic germ cell programmed cell death / neuronal action potential / positive regulation of phagocytosis / ovarian follicle development / axon cytoplasm / dendrite cytoplasm / embryo implantation / glutathione metabolic process / Gene and protein expression by JAK-STAT signaling after Interleukin-12 stimulation / removal of superoxide radicals / reactive oxygen species metabolic process / regulation of mitochondrial membrane potential / thymus development / positive regulation of superoxide anion generation / positive regulation of cytokine production / determination of adult lifespan / locomotory behavior / placenta development / sensory perception of sound / response to hydrogen peroxide / small GTPase binding / mitochondrial intermembrane space / regulation of blood pressure / negative regulation of inflammatory response / peroxisome / Platelet degranulation / protein-folding chaperone binding / response to heat / cytoplasmic vesicle / gene expression / spermatogenesis / negative regulation of neuron apoptotic process / response to ethanol / intracellular iron ion homeostasis / positive regulation of MAPK cascade / mitochondrial matrix / positive regulation of apoptotic process / copper ion binding / response to xenobiotic stimulus / neuronal cell body / apoptotic process / protein homodimerization activity / protein-containing complex / mitochondrion / extracellular space / extracellular exosome / extracellular region / zinc ion binding / nucleoplasm / identical protein binding / nucleus / cytosol / cytoplasm 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: 2.95 Å | ||||||||||||
![]() | Wang LQ / Ma YY / Yuan HY / Zhao K / Zhang MY / Wang Q / Huang X / Xu WC / Chen J / Li D ...Wang LQ / Ma YY / Yuan HY / Zhao K / Zhang MY / Wang Q / Huang X / Xu WC / Chen J / Li D / Zhang DL / Zou LY / Yin P / Liu C / Liang Y | ||||||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Cryo-EM structure of an amyloid fibril formed by full-length human SOD1 reveals its conformational conversion. 著者: Li-Qiang Wang / Yeyang Ma / Han-Ye Yuan / Kun Zhao / Mu-Ya Zhang / Qiang Wang / Xi Huang / Wen-Chang Xu / Bin Dai / Jie Chen / Dan Li / Delin Zhang / Zhengzhi Wang / Liangyu Zou / Ping Yin / ...著者: Li-Qiang Wang / Yeyang Ma / Han-Ye Yuan / Kun Zhao / Mu-Ya Zhang / Qiang Wang / Xi Huang / Wen-Chang Xu / Bin Dai / Jie Chen / Dan Li / Delin Zhang / Zhengzhi Wang / Liangyu Zou / Ping Yin / Cong Liu / Yi Liang / ![]() 要旨: Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disease. Misfolded Cu, Zn-superoxide dismutase (SOD1) has been linked to both familial and sporadic ALS. SOD1 fibrils formed in vitro share ...Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disease. Misfolded Cu, Zn-superoxide dismutase (SOD1) has been linked to both familial and sporadic ALS. SOD1 fibrils formed in vitro share toxic properties with ALS inclusions. Here we produced cytotoxic amyloid fibrils from full-length apo human SOD1 under reducing conditions and determined the atomic structure using cryo-EM. The SOD1 fibril consists of a single protofilament with a left-handed helix. The fibril core exhibits a serpentine fold comprising N-terminal segment (residues 3-55) and C-terminal segment (residues 86-153) with an intrinsic disordered segment. The two segments are zipped up by three salt bridge pairs. By comparison with the structure of apo SOD1 dimer, we propose that eight β-strands (to form a β-barrel) and one α-helix in the subunit of apo SOD1 convert into thirteen β-strands stabilized by five hydrophobic cavities in the SOD1 fibril. Our data provide insights into how SOD1 converts between structurally and functionally distinct states. | ||||||||||||
履歴 |
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構造の表示
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 | ![]() | 9.6 MB | ![]() | |
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ヘッダ (付随情報) | ![]() ![]() | 10.9 KB 10.9 KB | 表示 表示 | ![]() |
FSC (解像度算出) | ![]() | 11.3 KB | 表示 | ![]() |
画像 | ![]() | 100.7 KB | ||
Filedesc metadata | ![]() | 5.1 KB | ||
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
関連構造データ | ![]() 7vzfMC M: このマップから作成された原子モデル 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 ![]() |
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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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注釈 | The cryo-EM map of SOD1 fibril. | ||||||||||||||||||||||||||||||||||||
投影像・断面図 | 画像のコントロール
画像は Spider により作成 | ||||||||||||||||||||||||||||||||||||
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:
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-添付データ
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試料の構成要素
-全体 : Human SOD1 amyloid fibril
全体 | 名称: Human SOD1 amyloid fibril |
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要素 |
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-超分子 #1: Human SOD1 amyloid fibril
超分子 | 名称: Human SOD1 amyloid fibril / 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: Superoxide dismutase [Cu-Zn]
分子 | 名称: Superoxide dismutase [Cu-Zn] / タイプ: protein_or_peptide / ID: 1 / コピー数: 3 / 光学異性体: LEVO / EC番号: superoxide dismutase |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 15.958757 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: MATKAVCVLK GDGPVQGIIN FEQKESNGPV KVWGSIKGLT EGLHGFHVHE FGDNTAGCTS AGPHFNPLSR KHGGPKDEER HVGDLGNVT ADKDGVADVS IEDSVISLSG DHCIIGRTLV VHEKADDLGK GGNEESTKTG NAGSRLACGV IGIAQ UniProtKB: Superoxide dismutase [Cu-Zn] |
-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 | helical array |
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試料調製
緩衝液 | pH: 7.4 |
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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: 60.0 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 / 最大 デフォーカス(公称値): 2.0 µm / 最小 デフォーカス(公称値): 1.2 µm |
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |