[English] 日本語
![](img/lk-miru.gif)
- PDB-7vzf: Cryo-EM structure of amyloid fibril formed by full-length human SOD1 -
+
Open data
-
Basic information
Entry | Database: PDB / ID: 7vzf | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Title | Cryo-EM structure of amyloid fibril formed by full-length human SOD1 | ||||||||||||
![]() | Superoxide dismutase [Cu-Zn] | ||||||||||||
![]() | PROTEIN FIBRIL / Amyloid fibril | ||||||||||||
Function / homology | ![]() action potential initiation / neurofilament cytoskeleton organization / positive regulation of oxidative stress-induced intrinsic apoptotic signaling pathway / protein phosphatase 2B binding / regulation of organ growth / relaxation of vascular associated smooth muscle / response to superoxide / retrograde axonal transport / anterograde axonal transport / peripheral nervous system myelin maintenance ...action potential initiation / neurofilament cytoskeleton organization / positive regulation of oxidative stress-induced intrinsic apoptotic signaling pathway / protein phosphatase 2B binding / regulation of organ growth / relaxation of vascular associated smooth muscle / response to superoxide / retrograde axonal transport / anterograde axonal transport / peripheral nervous system myelin maintenance / regulation of protein kinase activity / regulation of T cell differentiation in thymus / retina homeostasis / superoxide anion generation / negative regulation of cholesterol biosynthetic process / auditory receptor cell stereocilium organization / hydrogen peroxide biosynthetic process / myeloid cell homeostasis / positive regulation of catalytic activity / muscle cell cellular homeostasis / regulation of GTPase activity / heart contraction / superoxide metabolic process / superoxide dismutase / negative regulation of reproductive process / Detoxification of Reactive Oxygen Species / negative regulation of developmental process / transmission of nerve impulse / superoxide dismutase activity / : / neuronal action potential / regulation of multicellular organism growth / response to axon injury / ectopic germ cell programmed cell death / positive regulation of superoxide anion generation / ovarian follicle development / positive regulation of phagocytosis / axon cytoplasm / glutathione metabolic process / embryo implantation / dendrite cytoplasm / Gene and protein expression by JAK-STAT signaling after Interleukin-12 stimulation / removal of superoxide radicals / reactive oxygen species metabolic process / thymus development / regulation of mitochondrial membrane potential / positive regulation of cytokine production / placenta development / locomotory behavior / determination of adult lifespan / sensory perception of sound / regulation of blood pressure / negative regulation of inflammatory response / response to hydrogen peroxide / mitochondrial intermembrane space / small GTPase binding / Platelet degranulation / peroxisome / protein-folding chaperone binding / gene expression / response to heat / cytoplasmic vesicle / spermatogenesis / response to ethanol / intracellular iron ion homeostasis / negative regulation of neuron apoptotic process / positive regulation of MAPK cascade / mitochondrial matrix / response to xenobiotic stimulus / positive regulation of apoptotic process / copper ion binding / neuronal cell body / apoptotic process / protein-containing complex / mitochondrion / extracellular space / zinc ion binding / extracellular exosome / extracellular region / nucleoplasm / identical protein binding / nucleus / cytoplasm / cytosol Similarity search - Function | ||||||||||||
Biological species | ![]() | ||||||||||||
Method | ELECTRON MICROSCOPY / helical reconstruction / cryo EM / Resolution: 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. | ||||||||||||
Funding support | ![]()
| ||||||||||||
![]() | ![]() Title: Cryo-EM structure of an amyloid fibril formed by full-length human SOD1 reveals its conformational conversion. Authors: 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 / ...Authors: 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 / ![]() Abstract: 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. | ||||||||||||
History |
|
-
Structure visualization
Structure viewer | Molecule: ![]() ![]() |
---|
-
Downloads & links
-
Download
PDBx/mmCIF format | ![]() | 68.7 KB | Display | ![]() |
---|---|---|---|---|
PDB format | ![]() | 51 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
---|
-Related structure data
Related structure data | ![]() 32227MC M: map data used to model this data C: citing same article ( |
---|---|
Similar structure data | Similarity search - Function & homology ![]() |
-
Links
-
Assembly
Deposited unit | ![]()
|
---|---|
1 |
|
-
Components
#1: Protein | Mass: 15958.757 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
---|
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
---|---|
EM experiment | Aggregation state: HELICAL ARRAY / 3D reconstruction method: helical reconstruction |
-
Sample preparation
Component | Name: Human SOD1 amyloid fibril / Type: ORGANELLE OR CELLULAR COMPONENT / Entity ID: all / Source: RECOMBINANT |
---|---|
Source (natural) | Organism: ![]() |
Source (recombinant) | Organism: ![]() ![]() |
Buffer solution | pH: 7.4 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Cryogen name: ETHANE |
-
Electron microscopy imaging
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
---|---|
Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2000 nm / Nominal defocus min: 1200 nm |
Image recording | Electron dose: 60 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
-
Processing
CTF correction | Type: NONE |
---|---|
Helical symmerty | Angular rotation/subunit: -1.187 ° / Axial rise/subunit: 4.82 Å / Axial symmetry: C1 |
3D reconstruction | Resolution: 2.95 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 70067 / Symmetry type: HELICAL |