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基本情報
登録情報 | データベース: PDB / ID: 7vzf | ||||||||||||
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タイトル | Cryo-EM structure of amyloid fibril formed by full-length human SOD1 | ||||||||||||
![]() | Superoxide dismutase [Cu-Zn] | ||||||||||||
![]() | PROTEIN FIBRIL / Amyloid 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 | 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: 2.95 Å | ||||||||||||
![]() | Wang, L.Q. / Ma, Y.Y. / Yuan, H.Y. / Zhao, K. / Zhang, M.Y. / Wang, Q. / Huang, X. / Xu, W.C. / Chen, J. / Li, D. ...Wang, L.Q. / Ma, Y.Y. / Yuan, H.Y. / Zhao, K. / Zhang, M.Y. / Wang, Q. / Huang, X. / Xu, W.C. / Chen, J. / Li, D. / Zhang, D.L. / Zou, L.Y. / 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
構造ビューア | 分子: ![]() ![]() |
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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 | ![]() | 68.7 KB | 表示 | ![]() |
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PDB形式 | ![]() | 51 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
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-関連構造データ
関連構造データ | ![]() 32227MC 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 ![]() |
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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: 15958.757 Da / 分子数: 3 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() |
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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: HELICAL ARRAY / 3次元再構成法: らせん対称体再構成法 |
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試料調製
構成要素 | 名称: Human SOD1 amyloid fibril / タイプ: ORGANELLE OR CELLULAR COMPONENT / 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: 7.4 |
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: FEI TITAN KRIOS |
電子銃 | 電子線源: ![]() |
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): 1200 nm |
撮影 | 電子線照射量: 60 e/Å2 フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) |
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解析
CTF補正 | タイプ: NONE |
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らせん対称 | 回転角度/サブユニット: -1.187 ° / 軸方向距離/サブユニット: 4.82 Å / らせん対称軸の対称性: C1 |
3次元再構成 | 解像度: 2.95 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 70067 / 対称性のタイプ: HELICAL |