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Yorodumi- EMDB-30887: Cryo-EM structure of amyloid fibril formed by familial prion dise... -
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-Basic information
Entry | Database: EMDB / ID: EMD-30887 | |||||||||
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Title | Cryo-EM structure of amyloid fibril formed by familial prion disease-related mutation E196K | |||||||||
Map data | Masked density map | |||||||||
Sample |
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Function / homology | Function and homology information positive regulation of glutamate receptor signaling pathway / negative regulation of amyloid precursor protein catabolic process / lamin binding / regulation of glutamate receptor signaling pathway / regulation of calcium ion import across plasma membrane / aspartic-type endopeptidase inhibitor activity / glycosaminoglycan binding / ATP-dependent protein binding / regulation of potassium ion transmembrane transport / negative regulation of interleukin-17 production ...positive regulation of glutamate receptor signaling pathway / negative regulation of amyloid precursor protein catabolic process / lamin binding / regulation of glutamate receptor signaling pathway / regulation of calcium ion import across plasma membrane / aspartic-type endopeptidase inhibitor activity / glycosaminoglycan binding / ATP-dependent protein binding / regulation of potassium ion transmembrane transport / negative regulation of interleukin-17 production / NCAM1 interactions / negative regulation of dendritic spine maintenance / type 5 metabotropic glutamate receptor binding / cupric ion binding / negative regulation of protein processing / dendritic spine maintenance / negative regulation of calcineurin-NFAT signaling cascade / negative regulation of T cell receptor signaling pathway / Insertion of tail-anchored proteins into the endoplasmic reticulum membrane / negative regulation of interleukin-2 production / extrinsic component of membrane / cuprous ion binding / negative regulation of amyloid-beta formation / negative regulation of activated T cell proliferation / response to amyloid-beta / negative regulation of type II interferon production / negative regulation of long-term synaptic potentiation / intracellular copper ion homeostasis / positive regulation of protein targeting to membrane / long-term memory / response to cadmium ion / regulation of peptidyl-tyrosine phosphorylation / inclusion body / cellular response to copper ion / neuron projection maintenance / positive regulation of calcium-mediated signaling / tubulin binding / molecular condensate scaffold activity / negative regulation of protein phosphorylation / molecular function activator activity / positive regulation of protein localization to plasma membrane / protein destabilization / protein homooligomerization / negative regulation of DNA-binding transcription factor activity / terminal bouton / cellular response to amyloid-beta / positive regulation of peptidyl-tyrosine phosphorylation / positive regulation of neuron apoptotic process / cellular response to xenobiotic stimulus / signaling receptor activity / amyloid-beta binding / protein-folding chaperone binding / microtubule binding / protease binding / nuclear membrane / response to oxidative stress / transmembrane transporter binding / postsynapse / molecular adaptor activity / postsynaptic density / learning or memory / regulation of cell cycle / membrane raft / copper ion binding / external side of plasma membrane / intracellular membrane-bounded organelle / dendrite / protein-containing complex binding / negative regulation of apoptotic process / Golgi apparatus / cell surface / endoplasmic reticulum / extracellular exosome / identical protein binding / plasma membrane / cytosol / cytoplasm Similarity search - Function | |||||||||
Biological species | Homo sapiens (human) | |||||||||
Method | helical reconstruction / cryo EM / Resolution: 3.07 Å | |||||||||
Authors | Wang LQ / Zhao K / Yuan HY / Li XN / Dang HB / Ma YY / Wang Q / Wang C / Sun YP / Chen J ...Wang LQ / Zhao K / Yuan HY / Li XN / Dang HB / Ma YY / Wang Q / Wang C / Sun YP / Chen J / Li D / Zhang DL / Yin P / Liu C / Liang Y | |||||||||
Citation | Journal: Sci Adv / Year: 2021 Title: Genetic prion disease-related mutation E196K displays a novel amyloid fibril structure revealed by cryo-EM. Authors: Li-Qiang Wang / Kun Zhao / Han-Ye Yuan / Xiang-Ning Li / Hai-Bin Dang / Yeyang Ma / Qiang Wang / Chen Wang / Yunpeng Sun / Jie Chen / Dan Li / Delin Zhang / Ping Yin / Cong Liu / Yi Liang / Abstract: Prion diseases are caused by the conformational conversion of prion protein (PrP). Forty-two different mutations were identified in human PrP, leading to genetic prion diseases with distinct clinical ...Prion diseases are caused by the conformational conversion of prion protein (PrP). Forty-two different mutations were identified in human PrP, leading to genetic prion diseases with distinct clinical syndromes. Here, we report the cryo–electron microscopy structure of an amyloid fibril formed by full-length human PrP with E196K mutation, a genetic Creutzfeldt-Jakob disease–related mutation. This mutation disrupts key interactions in the wild-type PrP fibril, forming an amyloid fibril with a conformation distinct from the wild-type PrP fibril and hamster brain–derived prion fibril. The E196K fibril consists of two protofibrils. Each subunit forms five β strands stabilized by a disulfide bond and an unusual hydrophilic cavity stabilized by a salt bridge. Four pairs of amino acids from opposing subunits form four salt bridges to stabilize the zigzag interface of the two protofibrils. Our results provide structural evidences of the diverse prion strains and highlight the importance of familial mutations in inducing different strains. | |||||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | EM map: SurfViewMolmilJmol/JSmol |
Supplemental images |
-Downloads & links
-EMDB archive
Map data | emd_30887.map.gz | 15.2 MB | EMDB map data format | |
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Header (meta data) | emd-30887-v30.xml emd-30887.xml | 12.5 KB 12.5 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_30887_fsc.xml | 14.2 KB | Display | FSC data file |
Images | emd_30887.png | 28.1 KB | ||
Masks | emd_30887_msk_1.map | 244.1 MB | Mask map | |
Others | emd_30887_additional_1.map.gz | 228.7 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-30887 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-30887 | HTTPS FTP |
-Related structure data
Related structure data | 7dwvMC M: atomic model generated by this map C: citing same article (ref.) |
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Similar structure data |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_30887.map.gz / Format: CCP4 / Size: 244.1 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Annotation | Masked density map | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.014 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Mask #1
File | emd_30887_msk_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Additional map: Unmasked density map
File | emd_30887_additional_1.map | ||||||||||||
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Annotation | Unmasked density map | ||||||||||||
Projections & Slices |
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Density Histograms |
-Sample components
-Entire : Human prion E196K mutation amyloid fibril
Entire | Name: Human prion E196K mutation amyloid fibril |
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Components |
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-Supramolecule #1: Human prion E196K mutation amyloid fibril
Supramolecule | Name: Human prion E196K mutation amyloid fibril / type: organelle_or_cellular_component / ID: 1 / Parent: 0 / Macromolecule list: all |
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Source (natural) | Organism: Homo sapiens (human) |
Recombinant expression | Organism: Escherichia coli (E. coli) |
-Macromolecule #1: Major prion protein
Macromolecule | Name: Major prion protein / type: protein_or_peptide / ID: 1 / Number of copies: 6 / Enantiomer: LEVO |
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Source (natural) | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 22.996422 KDa |
Recombinant expression | Organism: Escherichia coli (E. coli) |
Sequence | String: MKKRPKPGGW NTGGSRYPGQ GSPGGNRYPP QGGGGWGQPH GGGWGQPHGG GWGQPHGGGW GQPHGGGWGQ GGGTHSQWNK PSKPKTNMK HMAGAAAAGA VVGGLGGYML GSAMSRPIIH FGSDYEDRYY RENMHRYPNQ VYYRPMDEYS NQNNFVHDCV N ITIKQHTV ...String: MKKRPKPGGW NTGGSRYPGQ GSPGGNRYPP QGGGGWGQPH GGGWGQPHGG GWGQPHGGGW GQPHGGGWGQ GGGTHSQWNK PSKPKTNMK HMAGAAAAGA VVGGLGGYML GSAMSRPIIH FGSDYEDRYY RENMHRYPNQ VYYRPMDEYS NQNNFVHDCV N ITIKQHTV TTTTKGKNFT ETDVKMMERV VEQMCITQYE RESQAYYQRG SS |
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | helical reconstruction |
Aggregation state | helical array |
-Sample preparation
Buffer | pH: 5 |
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Vitrification | Cryogen name: ETHANE |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Average electron dose: 64.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |