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- PDB-4znn: MicroED structure of the segment, GVVHGVTTVA, from the A53T famil... -
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Basic information
Entry | Database: PDB / ID: 4znn | |||||||||
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Title | MicroED structure of the segment, GVVHGVTTVA, from the A53T familial mutant of Parkinson's disease protein, alpha-synuclein residues 47-56 | |||||||||
![]() | Alpha-synuclein | |||||||||
![]() | LIPID BINDING PROTEIN / Amyloid / alpha-synuclein / Parkinson's Disease / Toxic Core / NACore | |||||||||
Function / homology | ![]() negative regulation of mitochondrial electron transport, NADH to ubiquinone / : / neutral lipid metabolic process / regulation of acyl-CoA biosynthetic process / negative regulation of dopamine uptake involved in synaptic transmission / negative regulation of norepinephrine uptake / positive regulation of SNARE complex assembly / positive regulation of hydrogen peroxide catabolic process / supramolecular fiber / mitochondrial membrane organization ...negative regulation of mitochondrial electron transport, NADH to ubiquinone / : / neutral lipid metabolic process / regulation of acyl-CoA biosynthetic process / negative regulation of dopamine uptake involved in synaptic transmission / negative regulation of norepinephrine uptake / positive regulation of SNARE complex assembly / positive regulation of hydrogen peroxide catabolic process / supramolecular fiber / mitochondrial membrane organization / negative regulation of chaperone-mediated autophagy / regulation of synaptic vesicle recycling / regulation of reactive oxygen species biosynthetic process / negative regulation of platelet-derived growth factor receptor signaling pathway / positive regulation of protein localization to cell periphery / negative regulation of exocytosis / regulation of glutamate secretion / response to iron(II) ion / SNARE complex assembly / positive regulation of neurotransmitter secretion / dopamine biosynthetic process / regulation of norepinephrine uptake / transporter regulator activity / regulation of locomotion / synaptic vesicle priming / mitochondrial ATP synthesis coupled electron transport / regulation of macrophage activation / positive regulation of inositol phosphate biosynthetic process / negative regulation of microtubule polymerization / synaptic vesicle transport / positive regulation of receptor recycling / dopamine uptake involved in synaptic transmission / protein kinase inhibitor activity / dynein complex binding / regulation of dopamine secretion / negative regulation of thrombin-activated receptor signaling pathway / cuprous ion binding / positive regulation of endocytosis / positive regulation of exocytosis / response to magnesium ion / synaptic vesicle exocytosis / enzyme inhibitor activity / kinesin binding / synaptic vesicle endocytosis / response to type II interferon / regulation of presynapse assembly / cysteine-type endopeptidase inhibitor activity / negative regulation of serotonin uptake / alpha-tubulin binding / supramolecular fiber organization / inclusion body / phospholipid metabolic process / cellular response to copper ion / axon terminus / cellular response to epinephrine stimulus / Hsp70 protein binding / response to interleukin-1 / regulation of microtubule cytoskeleton organization / SNARE binding / positive regulation of release of sequestered calcium ion into cytosol / adult locomotory behavior / negative regulation of protein kinase activity / excitatory postsynaptic potential / fatty acid metabolic process / phosphoprotein binding / protein tetramerization / microglial cell activation / regulation of long-term neuronal synaptic plasticity / synapse organization / ferrous iron binding / protein destabilization / PKR-mediated signaling / phospholipid binding / receptor internalization / tau protein binding / long-term synaptic potentiation / synaptic vesicle membrane / positive regulation of inflammatory response / actin cytoskeleton / actin binding / growth cone / cell cortex / cellular response to oxidative stress / neuron apoptotic process / chemical synaptic transmission / molecular adaptor activity / negative regulation of neuron apoptotic process / response to lipopolysaccharide / histone binding / amyloid fibril formation / lysosome / oxidoreductase activity / postsynapse / transcription cis-regulatory region binding / positive regulation of apoptotic process / copper ion binding / Amyloid fiber formation / response to xenobiotic stimulus / axon / neuronal cell body Similarity search - Function | |||||||||
Biological species | ![]() | |||||||||
Method | ELECTRON CRYSTALLOGRAPHY / electron crystallography / ![]() ![]() | |||||||||
![]() | Rodriguez, J.A. / Ivanova, M. / Sawaya, M.R. / Cascio, D. / Reyes, F. / Shi, D. / Johnson, L. / Guenther, E. / Sangwan, S. / Hattne, J. ...Rodriguez, J.A. / Ivanova, M. / Sawaya, M.R. / Cascio, D. / Reyes, F. / Shi, D. / Johnson, L. / Guenther, E. / Sangwan, S. / Hattne, J. / Nannenga, B. / Brewster, A.S. / Messerschmidt, M. / Boutet, S. / Sauter, N.K. / Gonen, T. / Eisenberg, D.S. | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Structure of the toxic core of α-synuclein from invisible crystals. Authors: Jose A Rodriguez / Magdalena I Ivanova / Michael R Sawaya / Duilio Cascio / Francis E Reyes / Dan Shi / Smriti Sangwan / Elizabeth L Guenther / Lisa M Johnson / Meng Zhang / Lin Jiang / Mark ...Authors: Jose A Rodriguez / Magdalena I Ivanova / Michael R Sawaya / Duilio Cascio / Francis E Reyes / Dan Shi / Smriti Sangwan / Elizabeth L Guenther / Lisa M Johnson / Meng Zhang / Lin Jiang / Mark A Arbing / Brent L Nannenga / Johan Hattne / Julian Whitelegge / Aaron S Brewster / Marc Messerschmidt / Sébastien Boutet / Nicholas K Sauter / Tamir Gonen / David S Eisenberg / ![]() Abstract: The protein α-synuclein is the main component of Lewy bodies, the neuron-associated aggregates seen in Parkinson disease and other neurodegenerative pathologies. An 11-residue segment, which we term ...The protein α-synuclein is the main component of Lewy bodies, the neuron-associated aggregates seen in Parkinson disease and other neurodegenerative pathologies. An 11-residue segment, which we term NACore, appears to be responsible for amyloid formation and cytotoxicity of human α-synuclein. Here we describe crystals of NACore that have dimensions smaller than the wavelength of visible light and thus are invisible by optical microscopy. As the crystals are thousands of times too small for structure determination by synchrotron X-ray diffraction, we use micro-electron diffraction to determine the structure at atomic resolution. The 1.4 Å resolution structure demonstrates that this method can determine previously unknown protein structures and here yields, to our knowledge, the highest resolution achieved by any cryo-electron microscopy method to date. The structure exhibits protofibrils built of pairs of face-to-face β-sheets. X-ray fibre diffraction patterns show the similarity of NACore to toxic fibrils of full-length α-synuclein. The NACore structure, together with that of a second segment, inspires a model for most of the ordered portion of the toxic, full-length α-synuclein fibril, presenting opportunities for the design of inhibitors of α-synuclein fibrils. | |||||||||
History |
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Structure visualization
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Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 11.9 KB | Display | ![]() |
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PDB format | ![]() | 4.9 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
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-Validation report
Summary document | ![]() | 592.1 KB | Display | ![]() |
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Full document | ![]() | 591.6 KB | Display | |
Data in XML | ![]() | 6.3 KB | Display | |
Data in CIF | ![]() | 8.1 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 3001MC ![]() 3028C ![]() 4rikC ![]() 4rilC C: citing same article ( M: map data used to model this data |
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Similar structure data |
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Links
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Assembly
Deposited unit | ![]()
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1 | ![]()
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Unit cell |
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Components
#1: Protein/peptide | Mass: 940.074 Da / Num. of mol.: 1 / Mutation: A53T / Source method: obtained synthetically Details: Synthetic peptide GVVHGVTTVA corresponding to segment 47-56 of human alpha-synuclein Source: (synth.) ![]() |
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#2: Water | ChemComp-HOH / |
-Experimental details
-Experiment
Experiment | Method: ELECTRON CRYSTALLOGRAPHY / Number of used crystals: 1 |
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EM experiment | Aggregation state: 3D ARRAY / 3D reconstruction method: electron crystallography |
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Sample preparation
Component | Name: Human alpha-synuclein / Type: COMPLEX / Entity ID: #1 / Source: MULTIPLE SOURCES |
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Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES / Details: crystal |
Crystal grow | Temperature: 310 K / Method: batch mode / pH: 7 Details: 1 mg of synthetic peptide GVVHGVTTVA was dissolved in 200 microliters of 50 mM phosphate buffer pH 7.0 and 0.1% w/v DMSO and shaken overnight in an orbital mixing plate PH range: 7 |
-Data collection
Experimental equipment | ![]() Model: Tecnai F20 / Image courtesy: FEI Company | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Microscopy | Model: FEI TECNAI F20 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Electron gun | Electron source: ![]() | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Electron lens | Mode: DIFFRACTION | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Specimen holder | Cryogen: NITROGEN | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Diffraction | Mean temperature: 100 K | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Diffraction source | Source: ELECTRON MICROSCOPE / Type: OTHER / Wavelength: 0.0251 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Detector | Detector: CMOS / Date: Apr 20, 2015 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Radiation | Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: electron | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Radiation wavelength | Wavelength: 0.0251 Å / Relative weight: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reflection | Resolution: 1.41→16.5 Å / Num. obs: 1120 / % possible obs: 86.9 % / Observed criterion σ(I): -3 / Redundancy: 3.7 % / Biso Wilson estimate: 22.483 Å2 / Rmerge F obs: 0.967 / Rmerge(I) obs: 0.236 / Rrim(I) all: 0.264 / Χ2: 0.831 / Net I/σ(I): 4.62 / Num. measured all: 4110 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reflection shell | Diffraction-ID: 1 / Rejects: _
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-Phasing
Phasing | Method: ![]() |
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Phasing MR | Model details: Phaser MODE: MR_AUTO |
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Processing
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Refinement | Method to determine structure: ![]() Starting model: Ideal model Resolution: 1.41→16.47 Å / Cor.coef. Fo:Fc: 0.953 / Cor.coef. Fo:Fc free: 0.958 / WRfactor Rfree: 0.2879 / WRfactor Rwork: 0.2427 / FOM work R set: 0.6203 / SU B: 3.491 / SU ML: 0.111 / SU R Cruickshank DPI: 0.1115 / SU Rfree: 0.1137 / Cross valid method: THROUGHOUT / σ(F): 0 / ESU R: 0.112 / ESU R Free: 0.114 / Stereochemistry target values: MAXIMUM LIKELIHOOD Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS U VALUES : REFINED INDIVIDUALLY
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Solvent computation | Ion probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso max: 50.34 Å2 / Biso mean: 18.371 Å2 / Biso min: 11.23 Å2
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Refinement step | Cycle: final / Resolution: 1.41→16.47 Å
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Refine LS restraints |
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LS refinement shell | Resolution: 1.409→1.574 Å / Total num. of bins used: 5
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