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Open data
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Basic information
Entry | ![]() | |||||||||
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Title | Tau - AD-MIA4 | |||||||||
![]() | Sharpened map of AD-MIA-4 | |||||||||
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Function / homology | ![]() plus-end-directed organelle transport along microtubule / ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Similarity search - Function | |||||||||
Biological species | ![]() ![]() | |||||||||
Method | helical reconstruction / ![]() | |||||||||
![]() | Lovestam S / Li D / Scheres SHW / Goedert M | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Disease-specific tau filaments assemble via polymorphic intermediates. Authors: Sofia Lövestam / David Li / Jane L Wagstaff / Abhay Kotecha / Dari Kimanius / Stephen H McLaughlin / Alexey G Murzin / Stefan M V Freund / Michel Goedert / Sjors H W Scheres / ![]() ![]() Abstract: Intermediate species in the assembly of amyloid filaments are believed to play a central role in neurodegenerative diseases and may constitute important targets for therapeutic intervention. However, ...Intermediate species in the assembly of amyloid filaments are believed to play a central role in neurodegenerative diseases and may constitute important targets for therapeutic intervention. However, structural information about intermediate species has been scarce and the molecular mechanisms by which amyloids assemble remain largely unknown. Here we use time-resolved cryogenic electron microscopy to study the in vitro assembly of recombinant truncated tau (amino acid residues 297-391) into paired helical filaments of Alzheimer's disease or into filaments of chronic traumatic encephalopathy. We report the formation of a shared first intermediate amyloid filament, with an ordered core comprising residues 302-316. Nuclear magnetic resonance indicates that the same residues adopt rigid, β-strand-like conformations in monomeric tau. At later time points, the first intermediate amyloid disappears and we observe many different intermediate amyloid filaments, with structures that depend on the reaction conditions. At the end of both assembly reactions, most intermediate amyloids disappear and filaments with the same ordered cores as those from human brains remain. Our results provide structural insights into the processes of primary and secondary nucleation of amyloid assembly, with implications for the design of new therapies. | |||||||||
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 56.2 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 16.3 KB 16.3 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 13.6 KB | Display | ![]() |
Images | ![]() | 30.8 KB | ||
Filedesc metadata | ![]() | 5.5 KB | ||
Others | ![]() ![]() ![]() | 199.1 MB 170.1 MB 170.1 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 8q2lMC ![]() 8ppoC ![]() 8q27C ![]() 8q2jC ![]() 8q2kC ![]() 8q7fC ![]() 8q7lC ![]() 8q7mC ![]() 8q7pC ![]() 8q7tC ![]() 8q88C ![]() 8q8cC ![]() 8q8dC ![]() 8q8eC ![]() 8q8fC ![]() 8q8lC ![]() 8q8mC ![]() 8q8rC ![]() 8q8sC ![]() 8q8uC ![]() 8q8vC ![]() 8q8wC ![]() 8q8xC ![]() 8q8yC ![]() 8q8zC ![]() 8q97C ![]() 8q98C ![]() 8q99C ![]() 8q9aC ![]() 8q9bC ![]() 8q9cC ![]() 8q9dC ![]() 8q9eC ![]() 8q9fC ![]() 8q9gC ![]() 8q9hC ![]() 8q9iC ![]() 8q9jC ![]() 8q9kC ![]() 8q9lC ![]() 8q9mC ![]() 8q9oC ![]() 8qcpC ![]() 8qcrC ![]() 8qjjC M: atomic model generated by this map C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
File | ![]() | ||||||||||||||||||||
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Annotation | Sharpened map of AD-MIA-4 | ||||||||||||||||||||
Voxel size | X=Y=Z: 0.727 Å | ||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Additional map: Unsharpened map of AD-MIA-4
File | emd_18112_additional_1.map | ||||||||||||
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Annotation | Unsharpened map of AD-MIA-4 | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: Half map 1 of AD-MIA-4
File | emd_18112_half_map_1.map | ||||||||||||
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Annotation | Half map 1 of AD-MIA-4 | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: Half map 2 of AD-MIA-4
File | emd_18112_half_map_2.map | ||||||||||||
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Annotation | Half map 2 of AD-MIA-4 | ||||||||||||
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Density Histograms |
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Sample components
-Entire : Amyloid
Entire | Name: Amyloid![]() |
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Components |
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-Supramolecule #1: Amyloid
Supramolecule | Name: Amyloid / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all |
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Source (natural) | Organism: ![]() ![]() |
-Macromolecule #1: Isoform Tau-D of Microtubule-associated protein tau
Macromolecule | Name: Isoform Tau-D of Microtubule-associated protein tau / type: protein_or_peptide / ID: 1 / Number of copies: 6 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 40.002773 KDa |
Recombinant expression | Organism: ![]() ![]() ![]() |
Sequence | String: MAEPRQEFEV MEDHAGTYGL GDRKDQGGYT MHQDQEGDTD AGLKEEAGIG DTPSLEDEAA GHVTQARMVS KSKDGTGSDD KKAKGADGK TKIATPRGAA PPGQKGQANA TRIPAKTPPA PKTPPSSGEP PKSGDRSGYS SPGSPGTPGS RSRTPSLPTP P TREPKKVA ...String: MAEPRQEFEV MEDHAGTYGL GDRKDQGGYT MHQDQEGDTD AGLKEEAGIG DTPSLEDEAA GHVTQARMVS KSKDGTGSDD KKAKGADGK TKIATPRGAA PPGQKGQANA TRIPAKTPPA PKTPPSSGEP PKSGDRSGYS SPGSPGTPGS RSRTPSLPTP P TREPKKVA VVRTPPKSPS SAKSRLQTAP VPMPDLKNVK SKIGSTENLK HQPGGGKVQI INKKLDLSNV QSKCGSKDNI KH VPGGGSV QIVYKPVDLS KVTSKCGSLG NIHHKPGGGQ VEVKSEKLDF KDRVQSKIGS LDNITHVPGG GNKKIETHKL TFR ENAKAK TDHGAEIVYK SPVVSGDTSP RHLSNVSSTG SIDMVDSPQL ATLADEVSAS LAKQGL UniProtKB: ![]() |
-Experimental details
-Structure determination
Method | ![]() |
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![]() | helical reconstruction |
Aggregation state | filament |
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Sample preparation
Buffer | pH: 7.2 |
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Vitrification | Cryogen name: ETHANE |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD![]() |
Image recording | Film or detector model: FEI FALCON IV (4k x 4k) / Average electron dose: 40.0 e/Å2 |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |