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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 / response to desipramine / positive regulation of SNARE complex assembly / positive regulation of hydrogen peroxide catabolic process / supramolecular fiber ...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 / response to desipramine / positive regulation of SNARE complex assembly / positive regulation of hydrogen peroxide catabolic process / supramolecular fiber / mitochondrial membrane organization / regulation of synaptic vesicle recycling / negative regulation of chaperone-mediated autophagy / 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 / dopamine biosynthetic process / SNARE complex assembly / regulation of norepinephrine uptake / response to iron(II) ion / positive regulation of neurotransmitter secretion / positive regulation of inositol phosphate biosynthetic process / regulation of locomotion / negative regulation of dopamine metabolic process / regulation of macrophage activation / transporter regulator activity / negative regulation of microtubule polymerization / synaptic vesicle transport / synaptic vesicle priming / dopamine uptake involved in synaptic transmission / protein kinase inhibitor activity / mitochondrial ATP synthesis coupled electron transport / regulation of dopamine secretion / dynein complex binding / positive regulation of receptor recycling / negative regulation of thrombin-activated receptor signaling pathway / cuprous ion binding / nuclear outer membrane / response to magnesium ion / positive regulation of endocytosis / positive regulation of exocytosis / synaptic vesicle exocytosis / kinesin binding / enzyme inhibitor activity / synaptic vesicle endocytosis / cysteine-type endopeptidase inhibitor activity / negative regulation of serotonin uptake / response to type II interferon / regulation of presynapse assembly / alpha-tubulin binding / beta-tubulin binding / phospholipase binding / behavioral response to cocaine / supramolecular fiber organization / phospholipid metabolic process / cellular response to fibroblast growth factor stimulus / inclusion body / axon terminus / Hsp70 protein binding / cellular response to epinephrine stimulus / response to interleukin-1 / regulation of microtubule cytoskeleton organization / cellular response to copper ion / positive regulation of release of sequestered calcium ion into cytosol / SNARE binding / adult locomotory behavior / excitatory postsynaptic potential / phosphoprotein binding / protein tetramerization / microglial cell activation / fatty acid metabolic process / ferrous iron binding / regulation of long-term neuronal synaptic plasticity / synapse organization / protein destabilization / PKR-mediated signaling / phospholipid binding / receptor internalization / tau protein binding / long-term synaptic potentiation / terminal bouton / positive regulation of inflammatory response / synaptic vesicle membrane / actin cytoskeleton / actin binding / growth cone / cellular response to oxidative stress / neuron apoptotic process / cell cortex / response to lipopolysaccharide / histone binding / microtubule binding / molecular adaptor activity / chemical synaptic transmission / mitochondrial outer membrane / amyloid fibril formation / negative regulation of neuron apoptotic process / oxidoreductase activity 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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